Pin SHA commits and update docs with latest versions (#1338)

* Update GitHub Actions to use checkout and setup-python actions version 7

* Fix formatting in publish-immutable-actions.yml

.gitattributes

@@ -1 +1,2 @@
-* text=auto eol=lf
+* text=auto eol=lf
+.licenses/** -diff linguist-generated=true

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @actions/setup-actions-team

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,44 +1,38 @@
 ---
 name: Bug report
-about: Create a report to help us improve
+about: Create a bug report
 title: ''
-labels: bug
+labels: bug, needs triage
 assignees: ''
 
 ---
 
-**Describe the bug**
+<!--- Please direct any generic questions related to actions to our support community forum at https://github.community/c/code-to-cloud/github-actions/41 --->
+<!--- Before opening up a new bug report, please make sure to check for similar existing issues -->
+
+**Description:**
 A clear and concise description of what the bug is.
 
-**Which version of the action are you using?**
+**Action version:**
+Specify the action version
 
-- [ ] `v1`
-- [ ] `v2`
-- [ ] Some other tag (such as `v2.0.1` or `master`)
-
-**Environment**
-- [ ] self-hosted
-- [ ] Linux
+**Platform:**
+- [ ] Ubuntu
+- [ ] macOS
 - [ ] Windows
-- [ ] Mac
 
-If applicable, please specify if you're using a container
+**Runner type:**
+- [ ] Hosted
+- [ ] Self-hosted
 
-**Python Versions**
-Please list all of the effected versions of Python (`3.8.2`, etc.)
+**Tools version:**
+<!--- Please list all of the affected Python versions (`3.8.2`, etc.)-->
 
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
+**Repro steps:**  
+A description with steps to reproduce the issue. If your have a public example or repo to share, please provide the link.
 
-**Run/Repo Url**
-If applicable, and if your repo/run is public, please include a URL so it is easier for us to investigate.
+**Expected behavior:**
+A description of what you expected to happen.
 
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Additional context**
-Add any other context about the problem here.
+**Actual behavior:**
+A description of what is actually happening.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,18 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: feature request, needs triage
+assignees: ''
+---
+<!--- Please direct any generic questions related to actions to our support community forum at https://github.community/c/code-to-cloud/github-actions/41 --->
+<!--- Before opening up a new feature request, please make sure to check for similar existing issues and pull requests -->
+
+**Description:**
+Describe your proposal.
+
+**Justification:**
+Justification or a use case for your proposal.
+
+**Are you willing to submit a PR?**
+<!--- We accept contributions! -->

.github/dependabot.yml

@@ -0,0 +1,22 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  # Enable version updates for npm
+  - package-ecosystem: 'npm'
+    # Look for `package.json` and `lock` files in the `root` directory
+    directory: '/'
+    # Check the npm registry for updates every day (weekdays)
+    schedule:
+      interval: 'weekly'
+
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: 'github-actions'
+    # Workflow files stored in the default location of `.github/workflows`
+    # You don't need to specify `/.github/workflows` for `directory`. You can use `directory: "/"`.
+    directory: '/'
+    schedule:
+      interval: 'weekly'

.github/pull_request_template.md

@@ -0,0 +1,9 @@
+**Description:**
+Describe your changes.
+
+**Related issue:**
+Add link to the related issue.
+
+**Check list:**
+- [ ] Mark if documentation changes are required.
+- [ ] Mark if tests were added or updated to cover the changes.

.github/workflows/basic-validation.yml

@@ -0,0 +1,17 @@
+name: Basic validation
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+jobs:
+  call-basic-validation:
+    name: Basic validation
+    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
+    with:
+      node-version: '24.x'

.github/workflows/check-dist.yml

@@ -0,0 +1,19 @@
+name: Check dist/
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+jobs:
+  call-check-dist:
+    name: Check dist/
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
+    with:
+      node-version: '24.x'

.github/workflows/codeql-analysis.yml

@@ -1,45 +1,13 @@
-name: "Code scanning - action"
+name: CodeQL analysis
 
 on:
   push:
+    branches: ['main']
+  pull_request:
   schedule:
-    - cron: '25 3 * * 5'
+    - cron: '0 3 * * 0'
 
 jobs:
-  CodeQL-Build:
-
-    strategy:
-      fail-fast: false
-
-    # CodeQL runs on ubuntu-latest and windows-latest
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      # Override language selection by uncommenting this and choosing your languages
-      # with:
-      #   languages: go, javascript, csharp, python, cpp, java
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+  call-codeQL-analysis:
+    name: CodeQL analysis
+    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main

.github/workflows/e2e-cache-freethreaded.yml

@@ -0,0 +1,259 @@
+name: e2e-cache freethread
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+jobs:
+  python-pip-dependencies-caching:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        id: cache-pipenv
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+      - name: Install pipenv
+        run: python -m pip install --upgrade pip pipenv
+      - name: Install dependencies on Linux/macOS
+        if: runner.os != 'Windows'
+        run: |
+          export PIPENV_PYTHON=$(which python)
+          pipenv install requests
+      - name: Install dependencies on Windows
+        if: runner.os == 'Windows'
+        run: |
+          # Remove existing virtualenv if any
+          python -m pipenv --rm || echo "No existing env"
+          # Create fresh env using current Python
+          python -m pipenv install --python $(python -c "import sys; print(sys.executable)") requests
+
+  python-poetry-dependencies-caching:
+    name: Test poetry (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14, 3.14.6]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Init pyproject.toml
+        run: mv ./__tests__/data/pyproject.toml .
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          freethreaded: true
+          cache: 'poetry'
+      - name: Install dependencies
+        run: poetry install --no-root
+
+  python-pip-dependencies-caching-path:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching-path:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        id: cache-pipenv
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+          cache-dependency-path: '**/pipenv-requirements.txt'
+      - name: Install pipenv
+        run: python -m pip install --upgrade pip pipenv
+      - name: Install dependencies on Linux/macOS
+        if: runner.os != 'Windows'
+        run: |
+          export PIPENV_PYTHON=$(which python)
+          pipenv install requests
+      - name: Install dependencies on Windows
+        if: runner.os == 'Windows'
+        run: |
+          # Remove existing virtualenv if any
+          python -m pipenv --rm || echo "No existing env"
+          # Create fresh env using current Python
+          python -m pipenv install --python $(python -c "import sys; print(sys.executable)") requests
+
+  python-pip-dependencies-caching-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pip-dependencies-caching-path-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13.14t, 3.14.6t]
+        exclude:
+          - os: windows-11-arm
+            python-version: 3.13.14t
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests

.github/workflows/e2e-cache.yml

@@ -0,0 +1,302 @@
+name: e2e-cache
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+jobs:
+  python-pip-dependencies-caching:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version:
+          ['3.10', '3.11', 'pypy-3.11-v7.x', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-latest
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: '3.10'
+
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: ['3.11', 'pypy-3.11-v7.x', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-latest
+            python-version: pypy-3.11-v7.x
+          - os: ubuntu-22.04
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: pypy-3.11-v7.x
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        id: cache-pipenv
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+      - name: Install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
+      - name: Prepare environment
+        shell: pwsh
+        run: |
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          mv ./__tests__/test-pipenv.py .
+      - name: Install dependencies
+        shell: pwsh
+        if: steps.cache-pipenv.outputs.cache-hit != 'true'
+        run: |
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --python pypy # --keep-outdated
+          } else {
+            pipenv install --python ${{ matrix.python-version }} # --keep-outdated
+          }
+      - name: Run Python Script
+        run: pipenv run python test-pipenv.py
+
+  python-poetry-dependencies-caching:
+    name: Test poetry (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version:
+          ['3.10', '3.11', 'pypy-3.11-v7.x', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-latest
+            python-version: pypy-3.11-v7.x
+          - os: ubuntu-22.04
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: '3.10'
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Install poetry
+        run: |
+          pipx install poetry
+      - name: Init pyproject.toml
+        run: mv ./__tests__/data/pyproject.toml .
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'poetry'
+      - name: Bootstrap packaging
+        run: |
+          python -m ensurepip --upgrade
+          python -m pip install --upgrade pip setuptools wheel packaging
+      - name: Install dependencies
+        run: poetry install --no-root
+
+  python-pip-dependencies-caching-path:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version:
+          ['3.10', '3.11', 'pypy-3.11-v7.x', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-latest
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: '3.10'
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pipenv-dependencies-caching-path:
+    name: Test pipenv (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: ['3.11', 'pypy-3.11-v7.x', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-latest
+            python-version: pypy-3.11-v7.x
+          - os: ubuntu-22.04
+            python-version: pypy-3.11-v7.x
+          - os: windows-11-arm
+            python-version: pypy-3.11-v7.x
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        id: cache-pipenv
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pipenv'
+          cache-dependency-path: '**/pipenv-requirements.txt'
+      - name: Install pipenv
+        run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
+      - name: Prepare environment
+        shell: pwsh
+        run: |
+          mv ./__tests__/data/Pipfile.lock .
+          mv ./__tests__/data/Pipfile .
+          mv ./__tests__/test-pipenv.py .
+      - name: Install dependencies
+        shell: pwsh
+        if: steps.cache-pipenv.outputs.cache-hit != 'true'
+        run: |
+          if ("${{ matrix.python-version }}" -Match "pypy") {
+            pipenv install --python pypy # --keep-outdated
+          } else {
+            pipenv install --python ${{ matrix.python-version }} # --keep-outdated
+          }
+      - name: Run Python Script
+        run: pipenv run python test-pipenv.py
+
+  python-pip-dependencies-caching-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-11-arm
+            python-version: '3.10'
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests
+
+  python-pip-dependencies-caching-path-with-pip-version:
+    name: Test pip (Python ${{ matrix.python-version}}, ${{ matrix.os }}, caching path)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-11-arm
+            python-version: '3.10'
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+          cache-dependency-path: __tests__/data/requirements.txt
+          pip-version: '25.0.1'
+      - name: Install dependencies
+        run: pip install numpy pandas requests

.github/workflows/e2e-tests.yml

@@ -0,0 +1,106 @@
+name: e2e tests
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+jobs:
+  test-setup-python:
+    name: Test setup-python
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: Run with setup-python 3.10.11
+        if: matrix.operating-system != 'windows-11-arm'
+        uses: ./
+        with:
+          python-version: 3.10.11
+      - name: Verify 3.10.11
+        if: matrix.operating-system != 'windows-11-arm'
+        run: python __tests__/verify-python.py 3.10.11
+
+      - name: Run with setup-python 3.11.9
+        uses: ./
+        with:
+          python-version: 3.11.9
+      - name: Verify 3.11.9
+        run: python __tests__/verify-python.py 3.11.9
+
+      - name: Run with setup-python 3.12.10
+        uses: ./
+        with:
+          python-version: 3.12.10
+      - name: Verify 3.12.10
+        run: python __tests__/verify-python.py 3.12.10
+
+      - name: Run with setup-python 3.13.14
+        uses: ./
+        with:
+          python-version: 3.13.14
+      - name: Verify 3.13.14
+        run: python __tests__/verify-python.py 3.13.14
+
+      - name: Run with setup-python 3.14.6
+        uses: ./
+        with:
+          python-version: 3.14.6
+      - name: Verify 3.14.6
+        run: python __tests__/verify-python.py 3.14.6
+
+      - name: Run with setup-python 3.14
+        id: cp314
+        uses: ./
+        with:
+          python-version: '3.14'
+      - name: Verify 3.14
+        run: python __tests__/verify-python.py 3.14
+
+      - name: Install pipx (Windows)
+        if: runner.os == 'Windows'
+        run: python -m pip install pipx
+
+      - name: Run python-path sample 3.14
+        run: pipx run --python '${{ steps.cp314.outputs.python-path }}' nox --version
+        env:
+          PIPX_HOME: '${{ runner.temp }}/pipx'
+          PIPX_BIN_DIR: '${{ runner.temp }}/pipx/bin'
+
+      - name: Run with setup-python ==3.14
+        uses: ./
+        with:
+          python-version: '==3.14'
+      - name: Verify ==3.14
+        run: python __tests__/verify-python.py 3.14
+
+      - name: Run with setup-python <3.14
+        uses: ./
+        with:
+          python-version: '<3.14'
+      - name: Verify <3.14
+        run: python __tests__/verify-python.py 3.13
+
+      - name: Test Raw Endpoint Access
+        run: |
+          curl -L https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json | jq empty
+        shell: bash

.github/workflows/licensed.yml

@@ -0,0 +1,14 @@
+name: Licensed
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  call-licensed:
+    name: Licensed
+    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main

.github/workflows/publish-immutable-actions.yml

@@ -0,0 +1,20 @@
+name: 'Publish Immutable Action Version'
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+      packages: write
+
+    steps:
+      - name: Checking out
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Publish
+        id: publish
+        uses: actions/publish-immutable-action@4bc8754ffc40f27910afb20287dbbbb675a4e978 # v0.0.4

.github/workflows/release-new-action-version.yml

@@ -0,0 +1,28 @@
+name: Release new action version
+
+on:
+  release:
+    types: [released]
+  workflow_dispatch:
+    inputs:
+      TAG_NAME:
+        description: 'Tag name that the major tag will point to'
+        required: true
+
+env:
+  TAG_NAME: ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }}
+permissions:
+  contents: write
+
+jobs:
+  update_tag:
+    name: Update the major tag to include the ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }} changes
+    environment:
+      name: releaseNewActionVersion
+    runs-on: ubuntu-latest
+    steps:
+      - name: Update the ${{ env.TAG_NAME }} tag
+        uses: actions/publish-action@v0.4.0
+        with:
+          source-tag: ${{ env.TAG_NAME }}
+          slack-webhook: ${{ secrets.SLACK_WEBHOOK }}

.github/workflows/test-graalpy.yml

@@ -0,0 +1,134 @@
+name: Validate GraalPy e2e
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+jobs:
+  setup-graalpy:
+    name: Setup GraalPy ${{ matrix.graalpy }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            macos-latest,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            ubuntu-24.04-arm,
+            ubuntu-latest,
+            macos-15-intel
+          ]
+        graalpy:
+          - 'graalpy-23.1'
+          - 'graalpy-24.2'
+          - 'graalpy-25.0'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.graalpy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.graalpy }}
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: GraalPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert GraalPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "graalvm"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE=${{ matrix.graalpy }}
+          EXECUTABLE=${EXECUTABLE/graalpy-/graalpy}  # remove the first '-' in "graalpy-X.Y" -> "graalpyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  setup-graalpy-noenv:
+    name: Setup GraalPy ${{ matrix.graalpy }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            macos-latest,
+            ubuntu-22.04,
+            ubuntu-22.04-arm,
+            ubuntu-24.04-arm,
+            ubuntu-latest,
+            macos-15-intel
+          ]
+        graalpy: ['graalpy23.1', 'graalpy24.2', 'graalpy25.0']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.graalpy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.graalpy }}
+          update-environment: false
+
+      - name: GraalPy and Python version
+        run: ${{ steps.setup-python.outputs.python-path }} --version
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'
+
+  check-latest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-15-intel]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup GraalPy and check latest
+        uses: ./
+        id: graalpy
+        with:
+          python-version: 'graalpy-25.x'
+          check-latest: true
+      - name: GraalPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert GraalPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "graalvm"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE='${{ steps.graalpy.outputs.python-version }}'
+          EXECUTABLE="${EXECUTABLE%.*}"
+          ${EXECUTABLE} --version
+        shell: bash

.github/workflows/test-pypy.yml

@@ -0,0 +1,248 @@
+name: Validate PyPy e2e
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  schedule:
+    - cron: 30 3 * * *
+  workflow_dispatch:
+
+jobs:
+  setup-pypy:
+    name: Setup PyPy ${{ matrix.pypy }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            macos-15-intel,
+            macos-latest
+          ]
+        pypy:
+          - 'pypy-3.11'
+          - 'pypy-3.11-v7.3.23'
+          - 'pypy-3.11-v7.3.x'
+          - 'pypy-3.11-v7.x'
+          - 'pypy-3.11-nightly'
+          - 'pypy3.11-v7.3.23'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.pypy }}
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: PyPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE=${{ matrix.pypy }}
+          EXECUTABLE=${EXECUTABLE/pypy-/pypy}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  check-non-eol:
+    name: Check non-eol ${{ matrix.pypy }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            macos-15-intel,
+            macos-latest
+          ]
+        pypy: ['pypy-3.11']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.pypy }}
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: PyPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE=${{ matrix.pypy }}
+          EXECUTABLE=${EXECUTABLE/pypy-/pypy}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  setup-pypy-noenv:
+    name: Setup PyPy ${{ matrix.pypy }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            macos-15-intel,
+            macos-latest
+          ]
+        pypy: ['pypy3.11-nightly', 'pypy3.11']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.pypy }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.pypy }}
+          update-environment: false
+
+      - name: PyPy and Python version
+        run: ${{ steps.setup-python.outputs.python-path }} --version
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'
+
+  check-latest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup PyPy and check latest
+        uses: ./
+        with:
+          python-version: 'pypy-3.11-v7.3.x'
+          check-latest: true
+      - name: PyPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE="pypy-3.11-v7.3.x"
+          EXECUTABLE=${EXECUTABLE/-/}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffixe
+          ${EXECUTABLE} --version
+        shell: bash
+
+  setup-pypy-multiple-versions:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup PyPy and check latest
+        uses: ./
+        with:
+          python-version: |
+            pypy-3.11-v7.3.x
+            pypy-3.10-v7.3.x
+          check-latest: true
+      - name: PyPy and Python version
+        run: python --version
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+      - name: Assert PyPy is running
+        run: |
+          import platform
+          assert platform.python_implementation().lower() == "pypy"
+        shell: python
+
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE="pypy-3.11-v7.3.x"
+          EXECUTABLE=${EXECUTABLE/-/}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffix
+          ${EXECUTABLE} --version
+        shell: bash
+      - name: Assert expected binaries (or symlinks) are present
+        run: |
+          EXECUTABLE='pypy-3.10-v7.3.x'
+          EXECUTABLE=${EXECUTABLE/pypy-/pypy}  # remove the first '-' in "pypy-X.Y" -> "pypyX.Y" to match executable name
+          EXECUTABLE=${EXECUTABLE%%-*}  # remove any -* suffix
+          ${EXECUTABLE} --version
+        shell: bash

.github/workflows/test-python-freethreaded.yml

@@ -0,0 +1,557 @@
+name: Validate Python e2e freethread
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  schedule:
+    - cron: 30 3 * * *
+  workflow_dispatch:
+
+jobs:
+  setup-versions-from-manifest:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: echo ${{ matrix.python }} > .python-version
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: .python-version
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-file-without-parameter:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file without parameter
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: echo ${{ matrix.python }} > .python-version
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-standard-pyproject-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} standard pyproject file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14, 3.14.6]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[project]
+            requires-python = "${{ matrix.python }}"
+          ' > pyproject.toml
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: pyproject.toml
+          freethreaded: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-poetry-pyproject-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} poetry pyproject file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14, 3.14.6]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[tool.poetry.dependencies]
+            python = "${{ matrix.python }}"
+          ' > pyproject.toml
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: pyproject.toml
+          freethreaded: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-tool-versions-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} .tool-versions file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t, 3.15t-dev]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-tool-versions-file ${{ matrix.python }}
+        run: |
+          echo "python ${{ matrix.python }}" > .tool-versions
+
+      - name: setup-python using .tool-versions ${{ matrix.python }}
+        id: setup-python-tool-versions
+        uses: ./
+        with:
+          python-version-file: .tool-versions
+
+  setup-versions-from-pipfile-with-python_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} Pipfile
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13t, 3.15t-dev]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-pipfile-with-python_full_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} .tool-versions file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t, 3.15t-dev]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_full_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-pre-release-version-from-manifest:
+    name: Setup 3.15.0-beta.3 ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15.0-beta.3
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15.0-beta.3'
+          freethreaded: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-dev-version:
+    name: Setup 3.15t-dev ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15t-dev
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15t-dev'
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.15.') }}
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-prerelease-version:
+    name: Setup 3.15t ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15t
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15t'
+          allow-prereleases: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.15.') }}
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-noenv:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14t, 3.14.6t]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python }}
+          update-environment: false
+
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'
+
+  check-latest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: [3.13t, 3.15t-dev]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python and check latest
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          check-latest: true
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+  setup-python-multiple-python-versions:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup multiple Python versions
+        id: setup-python
+        uses: ./
+        with:
+          python-version: |
+            3.13.14t
+            3.14.6t
+            3.15t-dev
+      - name: Verify Python version
+        run: ${{ steps.setup-python.outputs.python-path }} -VVV
+
+  setup-versions-with-freethread-input:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} using freethread input parameter
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.13.14, 3.14.6, 3.15-dev, 3.15.0-beta.3]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python }}
+          freethreaded: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+      - name: Validate GIL
+        run: python ./__tests__/verify-freethreaded.py

.github/workflows/test-python.yml

@@ -0,0 +1,637 @@
+name: Validate Python e2e
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  schedule:
+    - cron: 30 3 * * *
+  workflow_dispatch:
+
+jobs:
+  setup-versions-from-manifest:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.12.10, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.12.10, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: echo ${{ matrix.python }} > .python-version
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: .python-version
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-file-without-parameter:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} version file without parameter
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.12.10, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: echo ${{ matrix.python }} > .python-version
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-standard-pyproject-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} standard pyproject file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, '==3.12.10', 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[project]
+            requires-python = "${{ matrix.python }}"
+          ' > pyproject.toml
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: pyproject.toml
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}".replace("==", "") -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-poetry-pyproject-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} poetry pyproject file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.12.10, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[tool.poetry.dependencies]
+            python = "${{ matrix.python }}"
+          ' > pyproject.toml
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: pyproject.toml
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-tool-versions-file:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} .tool-versions file
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [pypy3.11-7.3.18, graalpy-24.1.2, 3.13.14, 3.15-dev]
+        exclude:
+          - os: windows-latest
+            python: graalpy-24.1.2
+          - os: windows-11-arm
+            python: graalpy-24.1.2
+          - os: windows-11-arm
+            python: pypy3.11-7.3.18
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-tool-versions-file ${{ matrix.python }}
+        run: |
+          echo "python ${{ matrix.python }}" > .tool-versions
+
+      - name: setup-python using .tool-versions ${{ matrix.python }}
+        id: setup-python-tool-versions
+        uses: ./
+        with:
+          python-version-file: .tool-versions
+
+  setup-versions-from-pipfile-with-python_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} Pipfile with python_version
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}".replace("==", "") -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-from-pipfile-with-python_full_version:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} Pipfile with python_full_version
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: [3.10.11, 3.11.9, 3.13.14, 3.14.6]
+        exclude:
+          - os: windows-11-arm
+            python: 3.10.11
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: build-version-file ${{ matrix.python }}
+        run: |
+          echo '[requires]
+            python_full_version = "${{ matrix.python }}"
+          ' > Pipfile
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version-file: Pipfile
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python ${{ matrix.python }}".replace("==", "") -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-pre-release-version-from-manifest:
+    name: Setup 3.15.0-beta.3 ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15.0-beta.3
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15.0-beta.3'
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("Python 3.15.0b3" -ne "$pythonVersion"){
+            Write-Host "The current version is $pythonVersion; expected version is 3.15.0b3"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-dev-version:
+    name: Setup 3.15-dev ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15-dev
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15-dev'
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.15.') }}
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-prerelease-version:
+    name: Setup 3.15 ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python 3.15
+        id: setup-python
+        uses: ./
+        with:
+          python-version: '3.15'
+          allow-prereleases: true
+
+      - name: Check python-path
+        run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+        shell: bash
+
+      - name: Validate version
+        run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.15.') }}
+        shell: bash
+
+      - name: Run simple code
+        run: python -c 'import math; print(math.factorial(5))'
+
+  setup-versions-noenv:
+    name: Setup ${{ matrix.python }} ${{ matrix.os }} (noenv)
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-11-arm
+            python: '3.10'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+
+      - name: setup-python ${{ matrix.python }}
+        id: setup-python
+        uses: ./
+        with:
+          python-version: ${{ matrix.python }}
+          update-environment: false
+
+      - name: Python version
+        run: ${{ steps.setup-python.outputs.python-path }} --version
+
+      - name: Run simple code
+        run: ${{ steps.setup-python.outputs.python-path }} -c 'import math; print(math.factorial(5))'
+
+  check-latest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        exclude:
+          - os: windows-11-arm
+            python-version: '3.10'
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python and check latest
+        uses: ./
+        with:
+          python-version: ${{ matrix.python-version }}
+          check-latest: true
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("$pythonVersion" -NotMatch "${{ matrix.python-version }}"){
+            Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python-version }}"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh
+
+  setup-python-multiple-python-versions:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          [
+            ubuntu-22.04,
+            ubuntu-latest,
+            ubuntu-24.04-arm,
+            windows-latest,
+            windows-11-arm,
+            macos-15-intel,
+            macos-latest
+          ]
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - name: Setup Python and check latest
+        uses: ./
+        with:
+          python-version: |
+            3.11
+            3.12
+            3.13
+            3.14
+          check-latest: true
+      - name: Validate version
+        run: |
+          $pythonVersion = (python --version)
+          if ("$pythonVersion" -NotMatch "3.14"){
+            Write-Host "The current version is $pythonVersion; expected version is 3.14"
+            exit 1
+          }
+          $pythonVersion
+        shell: pwsh

.github/workflows/test.yml

@@ -1,92 +0,0 @@
-name: Validate 'setup-python'
-on: 
-  push:
-    branches:
-      - main
-    paths-ignore:
-      - '**.md'
-  pull_request:
-    paths-ignore:
-      - '**.md'
-  schedule:
-    - cron: 0 0 * * *
-
-jobs:
-  default-version:
-    name: Setup default version
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-16.04, ubuntu-18.04]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: setup default python 
-      uses: ./
-
-    - name: Validate version
-      run: python --version
-
-    - name: Run simple python code
-      run: python -c 'import math; print(math.factorial(5))'
-
-  setup-versions-from-manifest:
-    name: Setup ${{ matrix.python }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-16.04, ubuntu-18.04]
-        python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: setup-python ${{ matrix.python }}
-      uses: ./
-      with:
-        python-version: ${{ matrix.python }}
-
-    - name: Validate version
-      run: |
-        $pythonVersion = (python --version)
-        if ("Python ${{ matrix.python }}" -ne "$pythonVersion"){
-          Write-Host "The current version is $pythonVersion; expected version is ${{ matrix.python }}"
-          exit 1
-        }
-        $pythonVersion
-      shell: pwsh
-
-    - name: Run simple code
-      run: python -c 'import math; print(math.factorial(5))'
-
-  setup-pre-release-version-from-manifest:
-    name: Setup 3.9.0-beta.4 ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-16.04, ubuntu-18.04]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: setup-python 3.9.0-beta.4
-      uses: ./
-      with:
-        python-version: '3.9.0-beta.4'
-
-    - name: Validate version
-      run: |
-        $pythonVersion = (python --version)
-        if ("Python 3.9.0b4" -ne "$pythonVersion"){
-          Write-Host "The current version is $pythonVersion; expected version is 3.9.0b4"
-          exit 1
-        }
-        $pythonVersion
-      shell: pwsh
-
-    - name: Run simple code
-      run: python -c 'import math; print(math.factorial(5))'

.github/workflows/update-config-files.yml

@@ -0,0 +1,11 @@
+name: Update configuration files
+
+on:
+  schedule:
+    - cron: '0 3 * * 0'
+  workflow_dispatch:
+
+jobs:
+  call-update-configuration-files:
+    name: Update configuration files
+    uses: actions/reusable-workflows/.github/workflows/update-config-files.yml@main

.github/workflows/workflow.yml

@@ -1,90 +0,0 @@
-name: Main workflow
-on:
-  push:
-    branches:
-      - main
-    paths-ignore:
-      - '**.md'
-  pull_request:
-    paths-ignore:
-      - '**.md'
-jobs:
-  run:
-    name: Run
-    runs-on: ${{ matrix.operating-system }}
-    strategy:
-      matrix:
-        operating-system: [ubuntu-latest, windows-latest]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: Set Node.js 12.x
-      uses: actions/setup-node@v1
-      with:
-        node-version: 12.x
-
-    - name: npm install
-      run: npm install
-
-    - name: Lint
-      run: npm run format-check
-
-    - name: npm test
-      run: npm test
-
-    - name: Run with setup-python 2.7
-      uses: ./
-      with:
-        python-version: 2.7
-    - name: Verify 2.7
-      run: python __tests__/verify-python.py 2.7
-
-    - name: Run with setup-python 3.5
-      uses: ./
-      with:
-        python-version: 3.5
-    - name: Verify 3.5
-      run: python __tests__/verify-python.py 3.5
-
-    - name: Run with setup-python 3.6
-      uses: ./
-      with:
-        python-version: 3.6
-    - name: Verify 3.6
-      run: python __tests__/verify-python.py 3.6
-
-    - name: Run with setup-python 3.7
-      uses: ./
-      with:
-        python-version: 3.7
-    - name: Verify 3.7
-      run: python __tests__/verify-python.py 3.7
-
-    - name: Run with setup-python 3.8
-      uses: ./
-      with:
-        python-version: 3.8
-    - name: Verify 3.8
-      run: python __tests__/verify-python.py 3.8
-    
-    - name: Run with setup-python 3.7.5
-      uses: ./
-      with:
-        python-version: 3.7.5
-    - name: Verify 3.7.5
-      run: python __tests__/verify-python.py 3.7.5
-
-    - name: Run with setup-python 3.6.7
-      uses: ./
-      with:
-        python-version: 3.6.7
-    - name: Verify 3.6.7
-      run: python __tests__/verify-python.py 3.6.7
-
-    - name: Run with setup-python 3.8.1
-      uses: ./
-      with:
-        python-version: 3.8.1
-    - name: Verify 3.8.1
-      run: python __tests__/verify-python.py 3.8.1

.licensed.yml

@@ -0,0 +1,19 @@
+sources:
+  npm: true
+
+allowed:
+  - apache-2.0
+  - bsd-2-clause
+  - bsd-3-clause
+  - isc
+  - mit
+  - cc0-1.0
+  - unlicense
+  - 0bsd
+  - blueoak-1.0.0
+
+reviewed:
+  npm:
+    - "@actions/http-client"
+    - "balanced-match"
+    - "brace-expansion"

.prettierignore

@@ -0,0 +1,7 @@
+# Ignore list
+/*
+
+# Do not ignore these folders:
+!__tests__/
+!.github/
+!src/

.prettierrc.json

@@ -1,11 +1,10 @@
 {
-    "printWidth": 80,
-    "tabWidth": 2,
-    "useTabs": false,
-    "semi": true,
-    "singleQuote": true,
-    "trailingComma": "none",
-    "bracketSpacing": false,
-    "arrowParens": "avoid",
-    "parser": "typescript"
-  }
+  "printWidth": 80,
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "none",
+  "bracketSpacing": false,
+  "arrowParens": "avoid"
+}

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at opensource+actions/setup-python@github.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

README.md

@@ -1,207 +1,141 @@
-# setup-python V2
+# setup-python
 
-<p align="left">
-  <a href="https://github.com/actions/setup-python"><img alt="GitHub Actions status" src="https://github.com/actions/setup-python/workflows/Main%20workflow/badge.svg"></a>
-</p>
+[![Basic validation](https://github.com/actions/setup-python/actions/workflows/basic-validation.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/basic-validation.yml)
+[![Validate Python e2e](https://github.com/actions/setup-python/actions/workflows/test-python.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/test-python.yml)
+[![Validate PyPy e2e](https://github.com/actions/setup-python/actions/workflows/test-pypy.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/test-pypy.yml)
+[![e2e-cache](https://github.com/actions/setup-python/actions/workflows/e2e-cache.yml/badge.svg?branch=main)](https://github.com/actions/setup-python/actions/workflows/e2e-cache.yml)
 
-This action sets up a Python environment for use in actions by:
+This action provides the following functionality for GitHub Actions users:
 
-- optionally installing and adding to PATH a version of Python that is already installed in the tools cache
-- downloading, installing and adding to PATH an available version of Python from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases)) if a specific version is not available in the tools cache
-- failing if a specific version of Python is not preinstalled or available for download
-- registering problem matchers for error output
+- Installing a version of Python or PyPy and (by default) adding it to the PATH
+- Optionally caching dependencies for pip, pipenv and poetry
+- Registering problem matchers for error output
 
-# What's new
+## What's new in V7
 
-- Ability to download, install and set up Python packages from `actions/python-versions` that do not come preinstalled on runners
-  - Allows for pinning to a specific patch version of Python without the worry of it ever being removed or changed
-- Automatic setup and download of Python packages if using a self-hosted runner
-- Support for pre-release versions of Python
+- Migrated action internals to ESM for compatibility with latest `@actions/*` packages. No changes to action inputs, outputs, or behavior.
 
-# Usage
+## Breaking changes in V6
+
+- Upgraded action from node20 to node24
+  > Make sure your runner is on version v2.327.1 or later to ensure compatibility with this release. See [Release Notes](https://github.com/actions/runner/releases/tag/v2.327.1)
+
+For more details,  see the full release notes on the [releases page](https://github.com/actions/setup-python/releases/tag/v6.0.0)
+
+## Basic usage
 
 See [action.yml](action.yml)
 
-Basic:
+**Python**
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v7
+- uses: actions/setup-python@v7
   with:
-    python-version: '3.x' # Version range or exact version of a Python version to use, using SemVer's version range syntax
-    architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
+    python-version: '3.13' 
 - run: python my_script.py
 ```
 
-Matrix Testing:
-```yaml
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [ '2.x', '3.x', 'pypy2', 'pypy3' ]
-    name: Python ${{ matrix.python-version }} sample
-    steps:
-      - uses: actions/checkout@v2
-      - name: Setup python
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-          architecture: x64
-      - run: python my_script.py
-```
-
-Exclude a specific Python version:
-```yaml
-jobs:
-  build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [2.7, 3.6, 3.7, 3.8, pypy2, pypy3]
-        exclude:
-          - os: macos-latest
-            python-version: 3.8
-          - os: windows-latest
-            python-version: 3.6
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Display Python version
-        run: python -c "import sys; print(sys.version)"
-```
-
-Download and set up a version of Python that does not come preinstalled on an image:
-```yaml
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        # in this example, there is a newer version already installed, 3.7.7, so the older version will be downloaded
-        python-version: [3.5, 3.6, 3.7.4, 3.8]
-    steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - run: python my_script.py
-
-```
-
-Download and set up a accurate pre-release version of Python:
+**PyPy**
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v7
+- uses: actions/setup-python@v7 
   with:
-    python-version: '3.9.0-beta.4'
+    python-version: 'pypy3.10' 
 - run: python my_script.py
 ```
 
-Download and set up the latest available version of Python (includes both pre-release and stable versions):
+**GraalPy**
 ```yaml
 steps:
-- uses: actions/checkout@v2
-- uses: actions/setup-python@v2
+- uses: actions/checkout@v7
+- uses: actions/setup-python@v7 
   with:
-    python-version: '3.9.0-alpha - 3.9.0' # SemVer's version range syntax
+    python-version: 'graalpy-24.0' 
 - run: python my_script.py
 ```
 
-# Getting started with Python + Actions
+**Free threaded Python**
+```yaml
+steps:
+- uses: actions/checkout@v7
+- uses: actions/setup-python@v7
+  with:
+    python-version: '3.13t'
+- run: python my_script.py
+```
 
-Check out our detailed guide on using [Python with GitHub Actions](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/using-python-with-github-actions).
+The `python-version` input is optional. If not supplied, the action will try to resolve the version from the default `.python-version` file. If the `.python-version` file doesn't exist Python or PyPy version from the PATH will be used. The default version of Python or PyPy in PATH varies between runners and can be changed unexpectedly so we recommend always setting Python version explicitly using the `python-version` or `python-version-file` inputs.
 
-# Available versions of Python
+The action will first check the local [tool cache](docs/advanced-usage.md#hosted-tool-cache) for a [semver](https://github.com/npm/node-semver#versions) match. If unable to find a specific version in the tool cache, the action will attempt to download a version of Python from [GitHub Releases](https://github.com/actions/python-versions/releases) and for PyPy from the official [PyPy's dist](https://downloads.python.org/pypy/).
 
-`setup-python` is able to configure Python from two sources:
+For information regarding locally cached versions of Python or PyPy on GitHub hosted runners, check out [GitHub Actions Runner Images](https://github.com/actions/runner-images).
 
-- Preinstalled versions of Python in the tools cache on GitHub-hosted runners
-    - For detailed information regarding the available versions of Python that are installed see [Software installed on GitHub-hosted runners](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/software-installed-on-github-hosted-runners).
-    - For every minor version of Python, expect only the latest patch to be preinstalled.
-    - If `3.8.1` is installed for example, and `3.8.2` is released, expect `3.8.1` to be removed and replaced by `3.8.2` in the tools cache.
-    - If the exact patch version doesn't matter to you, specifying just the major and minor version will get you the latest preinstalled patch version. In the previous example, the version spec `3.8` will use the `3.8.2` Python version found in the cache.
-- Downloadable Python versions from GitHub Releases ([actions/python-versions](https://github.com/actions/python-versions/releases))
-    - All available versions are listed in the [version-manifest.json](https://github.com/actions/python-versions/blob/main/versions-manifest.json) file.
-    - If there is a specific version of Python that is not available, you can open an issue here
+## Supported version syntax
 
-# Hosted Tool Cache
+The `python-version` input supports the [Semantic Versioning Specification](https://semver.org/) and some special version notations (e.g. `semver ranges`, `x.y-dev syntax`, etc.), for detailed examples please refer to the section: [Using python-version input](docs/advanced-usage.md#using-the-python-version-input) of the [Advanced usage](docs/advanced-usage.md) guide.
 
-GitHub hosted runners have a tools cache that comes with a few versions of Python + PyPy already installed. This tools cache helps speed up runs and tool setup by not requiring any new downloads. There is an environment variable called `RUNNER_TOOL_CACHE` on each runner that describes the location of this tools cache and there is where you will find Python and PyPy installed. `setup-python` works by taking a specific version of Python or PyPy in this tools cache and adding it to PATH.
+## Supported architectures
 
-|| Location |
-|------|-------|
-|**Tool Cache Directory** |`RUNNER_TOOL_CACHE`|
-|**Python Tool Cache**|`RUNNER_TOOL_CACHE/Python/*`|
-|**PyPy Tool Cache**|`RUNNER_TOOL_CACHE/PyPy/*`|
+Using the `architecture` input, it is possible to specify the required Python or PyPy interpreter architecture: `x86`, `x64`, or `arm64`. If the input is not specified, the architecture defaults to the host OS architecture.
 
-GitHub virtual environments are setup in [actions/virtual-environments](https://github.com/actions/virtual-environments). During the setup, the available versions of Python and PyPy are automatically downloaded, setup and documented.
-- [Tools cache setup for Ubuntu](https://github.com/actions/virtual-environments/blob/master/images/linux/scripts/installers/hosted-tool-cache.sh)
-- [Tools cache setup for Windows](https://github.com/actions/virtual-environments/blob/master/images/win/scripts/Installers/Download-ToolCache.ps1)
+## Caching packages dependencies
 
-# Specifying a Python version
+The action has built-in functionality for caching and restoring dependencies. It uses [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood for caching dependencies but requires less configuration settings. Supported package managers are `pip`, `pipenv` and `poetry`. The `cache` input is optional, and caching is turned off by default.
 
-If there is a specific version of Python that you need and you don't want to worry about any potential breaking changes due to patch updates (going from `3.7.5` to `3.7.6` for example), you should specify the exact major, minor, and patch version (such as `3.7.5`)
-  - The only downside to this is that set up will take a little longer since the exact version will have to be downloaded if the exact version is not already installed on the runner due to more recent versions.
-  - MSI installers are used on Windows for this, so runs will take a little longer to set up vs Mac and Linux.
+The action defaults to searching for a dependency file (`requirements.txt` or `pyproject.toml` for pip, `Pipfile.lock` for pipenv or `poetry.lock` for poetry) in the repository, and uses its hash as a part of the cache key. Input `cache-dependency-path` is used for cases when multiple dependency files are used, they are located in different subdirectories or different files for the hash that want to be used.
 
-You should specify only a major and minor version if you are okay with the most recent patch version being used.
-  - There will be a single patch version already installed on each runner for every minor version of Python that is supported.
-  - The patch version that will be preinstalled, will generally be the latest and every time there is a new patch released, the older version that is preinstalled will be replaced.
-  - Using the most recent patch version will result in a very quick setup since no downloads will be required since a locally installed version Python on the runner will be used.
+ - For `pip`, the action will cache the global cache directory
+ - For `pipenv`, the action will cache virtualenv directory
+ - For `poetry`, the action will cache virtualenv directories -- one for each poetry project found
 
-# Using `setup-python` with a self hosted runner
+**Caching pip dependencies:**
 
-Python distributions are only available for the same [environments](https://github.com/actions/virtual-environments#available-environments) that GitHub Actions hosted environments are available for. If you are using an unsupported version of Ubuntu such as `19.04` or another Linux distribution such as Fedora, `setup-python` will not work. If you have a supported self-hosted runner and you would like to use `setup-python`, there are a few extra things you need to make sure are set up so that new versions of Python can be downloaded and configured on your runner.
+```yaml
+steps:
+- uses: actions/checkout@v7
+- uses: actions/setup-python@v7
+  with:
+    python-version: '3.13'
+    cache: 'pip' # caching pip dependencies
+- run: pip install -r requirements.txt
+```
+>**Note:** Restored cache will not be used if the requirements.txt file is not updated for a long time and a newer version of the dependency is available which can lead to an increase in total build time.
 
-If you are experiencing problems while configuring Python on your self-hosted runner, turn on [step debugging](https://github.com/actions/toolkit/blob/main/docs/action-debugging.md#step-debug-logs) to see addition logs.
+>The requirements file format allows for specifying dependency versions using logical operators (for example chardet>=3.0.4) or specifying dependencies without any versions. In this case the pip install -r requirements.txt command will always try to install the latest available package version. To be sure that the cache will be used, please stick to a specific dependency version and update it manually if necessary.
 
-### Windows
+>The `setup-python` action does not handle authentication for pip when installing packages from private repositories. For help, refer [pip’s VCS support documentation](https://pip.pypa.io/en/stable/topics/vcs-support/) or visit the [pip repository](https://github.com/pypa/pip).
 
-- Your runner needs to be running with administrator privileges so that the appropriate directories and files can be set up when downloading and installing a new version of Python for the first time.
-- If your runner is configured as a service, make sure the account that is running the service has the appropriate write permissions so that Python can get installed. The default `NT AUTHORITY\NETWORK SERVICE` should be sufficient.
-- You need `7zip` installed and added to your `PATH` so that the downloaded versions of Python files can be extracted properly during first-time setup.
-- MSI installers are used when setting up Python on Windows. A word of caution as MSI installers update registry settings.
-- The 3.8 MSI installer for Windows will not let you install another 3.8 version of Python. If `setup-python` fails for a 3.8 version of Python, make sure any previously installed versions are removed by going to "Apps & Features" in the Settings app.
+See examples of using `cache` and `cache-dependency-path` for `pipenv` and `poetry` in the section: [Caching packages](docs/advanced-usage.md#caching-packages) of the [Advanced usage](docs/advanced-usage.md) guide.
 
-### Linux
+## Advanced usage
 
-- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source in `/opt/hostedtoolcache/` with the [--enable-shared](https://github.com/actions/python-versions/blob/94f04ae6806c6633c82db94c6406a16e17decd5c/builders/ubuntu-python-builder.psm1#L35) flag, which makes them non-relocatable.
-- Create an environment variable called `AGENT_TOOLSDIRECTORY` and set it to `/opt/hostedtoolcache`. This controls where the runner downloads and installs tools.
-  - In the same shell that your runner is using, type `export AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`
-  - A more permanent way of setting the environment variable is to create a `.env` file in the same directory as your runner and to add `AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`. This ensures the variable is always set if your runner is configured as a service.
-- Create a directory called `hostedtoolcache` inside `/opt`.
-- The user starting the runner must have write permission to the `/opt/hostedtoolcache` directory. It is not possible to start the Linux runner with `sudo` and the `/opt` directory usually requires root privileges to write to. Check the current user and group that the runner belongs to by typing `ls -l` inside the runners root directory.
-- The runner can be granted write access to the `/opt/hostedtoolcache` directory using a few techniques:
-  - The user starting the runner is the owner, and the owner has write permission
-  - The user starting the runner is in the owning group, and the owning group has write permission
-  - All users have write permission
-- One quick way to grant access is to change the user and group of `/opt/hostedtoolcache` to be the same as the runners using `chown`
-    - `sudo chown runner-user:runner-group opt/hostedtoolcache/`
-- If your runner is configured as a service and you run into problems, make sure the user that the service is running as is correct. For more information, you can [check the status of your self-hosted runner](https://help.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service#checking-the-status-of-the-service).
+- [Using the python-version input](docs/advanced-usage.md#using-the-python-version-input)
+- [Using the python-version-file input](docs/advanced-usage.md#using-the-python-version-file-input)
+- [Check latest version](docs/advanced-usage.md#check-latest-version)
+- [Caching packages](docs/advanced-usage.md#caching-packages)
+- [Outputs and environment variables](docs/advanced-usage.md#outputs-and-environment-variables)
+- [Available versions of Python, PyPy and GraalPy](docs/advanced-usage.md#available-versions-of-python-pypy-and-graalpy)
+- [Hosted tool cache](docs/advanced-usage.md#hosted-tool-cache) 
+- [Using `setup-python` with a self-hosted runner](docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner)
+- [Using `setup-python` on GHES](docs/advanced-usage.md#using-setup-python-on-ghes)
+- [Allow pre-releases](docs/advanced-usage.md#allow-pre-releases)
+- [Using the pip-version input](docs/advanced-usage.md#using-the-pip-version-input)
 
-### Mac
+## Recommended permissions
 
-- The same setup that applies to `Linux` also applies to `Mac`, just with a different tools cache directory.
-- Create a directory called `/Users/runner/hostedtoolcache`
-- Set the `AGENT_TOOLSDIRECTORY` environment variable to `/Users/runner/hostedtoolcache`.
-- Change the permissions of `/Users/runner/hostedtoolcache` so that the runner has write access.
+When using the `setup-python` action in your GitHub Actions workflow, it is recommended to set the following permissions to ensure proper functionality:
 
+```yaml
+permissions:
+  contents: read # access to check out code and install dependencies
+```
 
-# Using Python without `setup-python`
+## License
 
-`setup-python` helps keep your dependencies explicit and ensures consistent behavior between different runners. If you use `python` in a shell on a GitHub hosted runner without `setup-python` it will default to whatever is in PATH. The default version of Python in PATH vary between runners and can change unexpectedly so we recommend you always use `setup-python`.
+The scripts and documentation in this project are released under the [MIT License](LICENSE).
 
-# License
+## Contributions
 
-The scripts and documentation in this project are released under the [MIT License](LICENSE)
-
-# Contributions
-
-Contributions are welcome! See our [Contributor's Guide](docs/contributors.md)
+Contributions are welcome! See our [Contributor's Guide](docs/contributors.md).

__tests__/cache-restore.test.ts

@@ -0,0 +1,410 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import * as path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Mock @actions modules before importing anything that depends on them
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+jest.unstable_mockModule('@actions/cache', () => ({
+  saveCache: jest.fn(),
+  restoreCache: jest.fn(),
+  isFeatureAvailable: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/io', () => ({
+  which: jest.fn(),
+  mkdirP: jest.fn(),
+  rmRF: jest.fn(),
+  mv: jest.fn(),
+  cp: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const cache = await import('@actions/cache');
+const exec = await import('@actions/exec');
+const io = await import('@actions/io');
+const {getCacheDistributor} =
+  await import('../src/cache-distributions/cache-factory.js');
+const {State} = await import('../src/cache-distributions/cache-distributor.js');
+
+describe('restore-cache', () => {
+  const pipFileLockHash =
+    'f8428d7cf00ea53a5c3702f0a9cb3cc467f76cd86a34723009350c4e4b32751a';
+  const requirementsHash =
+    'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
+  const requirementsLinuxHash =
+    '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+  const poetryLockHash =
+    'f24ea1ad73968e6c8d80c16a093ade72d9332c433aeef979a0dd943e6a99b2ab';
+  const poetryConfigOutput = `
+cache-dir = "/Users/patrick/Library/Caches/pypoetry"
+experimental.new-installer = false
+installer.parallel = true
+virtualenvs.create = true
+virtualenvs.in-project = true
+virtualenvs.path = "{cache-dir}/virtualenvs"  # /Users/patrick/Library/Caches/pypoetry/virtualenvs
+  `;
+
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let saveStateSpy: jest.Mock;
+  let getStateSpy: jest.Mock;
+  let setOutputSpy: jest.Mock;
+  let restoreCacheSpy: jest.Mock;
+  let getExecOutputSpy: jest.Mock;
+  let whichSpy: jest.Mock;
+
+  beforeEach(() => {
+    process.env['RUNNER_OS'] = process.env['RUNNER_OS'] ?? 'linux';
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => undefined);
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => undefined);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => undefined);
+
+    saveStateSpy = core.saveState as jest.Mock;
+    saveStateSpy.mockImplementation(() => undefined);
+
+    getStateSpy = core.getState as jest.Mock;
+    getStateSpy.mockImplementation(() => undefined);
+
+    getExecOutputSpy = exec.getExecOutput as jest.Mock;
+    (
+      getExecOutputSpy as jest.Mock<typeof exec.getExecOutput>
+    ).mockImplementation(async (input: string) => {
+      if (input.includes('pip')) {
+        return {stdout: 'pip', stderr: '', exitCode: 0};
+      }
+      if (input.includes('poetry')) {
+        return {stdout: poetryConfigOutput, stderr: '', exitCode: 0};
+      }
+      if (input.includes('lsb_release')) {
+        return {stdout: 'Ubuntu\n20.04', stderr: '', exitCode: 0};
+      }
+
+      return {stdout: '', stderr: 'Error occured', exitCode: 2};
+    });
+
+    setOutputSpy = core.setOutput as jest.Mock;
+    setOutputSpy.mockImplementation(() => undefined);
+
+    restoreCacheSpy = cache.restoreCache as jest.Mock;
+    (
+      restoreCacheSpy as jest.Mock<typeof cache.restoreCache>
+    ).mockImplementation(
+      (cachePaths: string[], primaryKey: string, restoreKey?: string[]) => {
+        return Promise.resolve(primaryKey);
+      }
+    );
+
+    whichSpy = io.which as jest.Mock;
+    whichSpy.mockImplementation(() => '/path/to/python');
+  });
+
+  describe('Validate provided package manager', () => {
+    it.each(['npm', 'pip2', 'pip21', 'pip21.3', 'pipenv32'])(
+      'Throw an error because %s is not supported',
+      async packageManager => {
+        expect(() =>
+          getCacheDistributor(packageManager, '3.8.12', undefined)
+        ).toThrow(`Caching for '${packageManager}' is not supported`);
+      }
+    );
+  });
+
+  describe('Restore dependencies', () => {
+    it.each([
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/**/requirements.txt',
+        requirementsHash,
+        undefined
+      ],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/**/requirements-linux.txt',
+        requirementsLinuxHash,
+        undefined
+      ],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/requirements-linux.txt',
+        requirementsLinuxHash,
+        undefined
+      ],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/requirements.txt',
+        requirementsHash,
+        undefined
+      ],
+      [
+        'pipenv',
+        '3.9.1',
+        '__tests__/data/**/Pipfile.lock',
+        pipFileLockHash,
+        undefined
+      ],
+      [
+        'pipenv',
+        '3.9.12',
+        '__tests__/data/requirements.txt',
+        requirementsHash,
+        undefined
+      ],
+      [
+        'poetry',
+        '3.9.1',
+        '__tests__/data/**/poetry.lock',
+        poetryLockHash,
+        [
+          '/Users/patrick/Library/Caches/pypoetry/virtualenvs',
+          path.join(__dirname, 'data', 'inner', '.venv'),
+          path.join(__dirname, 'data', '.venv')
+        ]
+      ]
+    ])(
+      'restored dependencies for %s by primaryKey',
+      async (
+        packageManager,
+        pythonVersion,
+        dependencyFile,
+        fileHash,
+        cachePaths
+      ) => {
+        (
+          restoreCacheSpy as jest.Mock<typeof cache.restoreCache>
+        ).mockImplementation(
+          (cachePaths: string[], primaryKey: string, restoreKey?: string[]) => {
+            return Promise.resolve(
+              primaryKey.includes(fileHash) ? primaryKey : ''
+            );
+          }
+        );
+
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+
+        await cacheDistributor.restoreCache();
+
+        if (cachePaths !== undefined) {
+          expect(saveStateSpy).toHaveBeenCalledWith(
+            State.CACHE_PATHS,
+            cachePaths
+          );
+        }
+
+        const restoredKeys = await Promise.all(
+          restoreCacheSpy.mock.results.map(result => result.value)
+        );
+
+        restoredKeys.forEach(restoredKey => {
+          if (restoredKey) {
+            const osSegment =
+              process.platform === 'linux' ? '-20.04-Ubuntu' : '';
+            const versionSuffix = packageManager === 'poetry' ? '-v2' : '';
+            expect(infoSpy).toHaveBeenCalledWith(
+              `Cache restored from key: setup-python-${process.env['RUNNER_OS']}-${process.arch}${osSegment}-python-${pythonVersion}-${packageManager}${versionSuffix}-${fileHash}`
+            );
+          } else {
+            expect(infoSpy).toHaveBeenCalledWith(
+              `${packageManager} cache is not found`
+            );
+          }
+        });
+      },
+      30000
+    );
+
+    it.each([['pipenv', '3.9.12', 'requirements.txt', 'requirements.txt']])(
+      'Should throw an error because dependency file is not found',
+      async (
+        packageManager,
+        pythonVersion,
+        dependencyFile,
+        cacheDependencyPath
+      ) => {
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+
+        await expect(cacheDistributor.restoreCache()).rejects.toThrow(
+          `No file in ${process.cwd()} matched to [${cacheDependencyPath
+            .split('\n')
+            .join(',')}], make sure you have checked out the target repository`
+        );
+      }
+    );
+
+    it.each([
+      ['pip', '3.8.12', 'requirements-linux.txt'],
+      ['pip', '3.8.12', 'requirements.txt']
+    ])(
+      'Shouldn`t throw an error as there is a default file `pyproject.toml` to use when requirements.txt is not specified',
+      async (packageManager, pythonVersion, dependencyFile) => {
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        await expect(cacheDistributor.restoreCache()).resolves.not.toThrow();
+      }
+    );
+
+    it.each([
+      ['pip', '3.8.12', 'requirements-linux.txt'],
+      ['pip', '3.8.12', 'requirements.txt']
+    ])(
+      'Should throw an error as there is no default file `pyproject.toml` to use when requirements.txt is not specified',
+      async (packageManager, pythonVersion, dependencyFile) => {
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        ) as any; // Widening PipCache | PipenvCache | PoetryCache type to any allow us to change private property on the cacheDistributor to test value: "**/pyprojecttest.toml"
+
+        cacheDistributor.cacheDependencyBackupPath = '**/pyprojecttest.toml';
+
+        await expect(cacheDistributor.restoreCache()).rejects.toThrow();
+      }
+    );
+  });
+
+  describe('Dependencies changed', () => {
+    it.each([
+      ['pip', '3.8.12', '__tests__/data/**/requirements.txt', pipFileLockHash],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/**/requirements-linux.txt',
+        pipFileLockHash
+      ],
+      [
+        'pip',
+        '3.8.12',
+        '__tests__/data/requirements-linux.txt',
+        pipFileLockHash
+      ],
+      ['pip', '3.8.12', '__tests__/data/requirements.txt', pipFileLockHash],
+      ['pipenv', '3.9.1', '__tests__/data/**/Pipfile.lock', requirementsHash],
+      ['pipenv', '3.9.12', '__tests__/data/requirements.txt', requirementsHash],
+      ['poetry', '3.9.1', '__tests__/data/**/poetry.lock', requirementsHash]
+    ])(
+      'restored dependencies for %s by primaryKey',
+      async (packageManager, pythonVersion, dependencyFile, fileHash) => {
+        (
+          restoreCacheSpy as jest.Mock<typeof cache.restoreCache>
+        ).mockImplementation(
+          (cachePaths: string[], primaryKey: string, restoreKey?: string[]) => {
+            return Promise.resolve(
+              primaryKey !== fileHash && restoreKey ? pipFileLockHash : ''
+            );
+          }
+        );
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        await cacheDistributor.restoreCache();
+        let result = '';
+
+        switch (packageManager) {
+          case 'pip':
+            result = `Cache restored from key: ${fileHash}`;
+            break;
+          case 'pipenv':
+            result = 'pipenv cache is not found';
+            break;
+          case 'poetry':
+            result = 'poetry cache is not found';
+            break;
+        }
+
+        expect(infoSpy).toHaveBeenCalledWith(result);
+      }
+    );
+  });
+
+  describe('Check if handleMatchResult', () => {
+    it.each([
+      ['pip', '3.8.12', 'requirements.txt', 'someKey', 'someKey', true],
+      ['pipenv', '3.9.1', 'requirements.txt', 'someKey', 'someKey', true],
+      ['poetry', '3.8.12', 'requirements.txt', 'someKey', 'someKey', true],
+      ['pip', '3.9.2', 'requirements.txt', undefined, 'someKey', false],
+      ['pipenv', '3.8.12', 'requirements.txt', undefined, 'someKey', false],
+      ['poetry', '3.9.12', 'requirements.txt', undefined, 'someKey', false]
+    ])(
+      'sets correct outputs',
+      async (
+        packageManager,
+        pythonVersion,
+        dependencyFile,
+        matchedKey,
+        restoredKey,
+        expectedOutputValue
+      ) => {
+        const cacheDistributor = getCacheDistributor(
+          packageManager,
+          pythonVersion,
+          dependencyFile
+        );
+        cacheDistributor.handleMatchResult(matchedKey, restoredKey);
+        expect(setOutputSpy).toHaveBeenCalledWith(
+          'cache-hit',
+          expectedOutputValue
+        );
+      }
+    );
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+  });
+});

__tests__/cache-save.test.ts

@@ -0,0 +1,330 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Mock @actions modules before importing anything that depends on them
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+class MockValidationError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'ValidationError';
+  }
+}
+
+jest.unstable_mockModule('@actions/cache', () => ({
+  saveCache: jest.fn(),
+  restoreCache: jest.fn(),
+  isFeatureAvailable: jest.fn(),
+  ValidationError: MockValidationError,
+  ReserveCacheError: MockValidationError
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const cache = await import('@actions/cache');
+const exec = await import('@actions/exec');
+const {run} = await import('../src/cache-save.js');
+const {State} = await import('../src/cache-distributions/cache-distributor.js');
+
+describe('run', () => {
+  const pipFileLockHash =
+    'd1dd6218299d8a6db5fc2001d988b34a8b31f1e9d0bb4534d377dde7c19f64b3';
+  const requirementsHash =
+    'd8110e0006d7fb5ee76365d565eef9d37df1d11598b912d3eb66d398d57a1121';
+  const requirementsLinuxHash =
+    '2d0ff7f46b0e120e3d3294db65768b474934242637b9899b873e6283dfd16d7c';
+  const poetryLockHash =
+    '571bf984f8d210e6a97f854e479fdd4a2b5af67b5fdac109ec337a0ea16e7836';
+
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let saveStateSpy: jest.Mock;
+  let getStateSpy: jest.Mock;
+  let getInputSpy: jest.Mock;
+  let setFailedSpy: jest.Mock;
+  let saveCacheSpy: jest.Mock;
+  let getExecOutputSpy: jest.Mock;
+
+  let inputs = {} as any;
+
+  beforeEach(() => {
+    process.env['RUNNER_OS'] = process.env['RUNNER_OS'] ?? 'linux';
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => undefined);
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => undefined);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => undefined);
+
+    saveStateSpy = core.saveState as jest.Mock;
+    saveStateSpy.mockImplementation(() => undefined);
+
+    getStateSpy = core.getState as jest.Mock;
+    (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+      (input: string) => {
+        if (input === State.CACHE_PATHS) {
+          return JSON.stringify([__dirname]);
+        }
+        return requirementsHash;
+      }
+    );
+
+    setFailedSpy = core.setFailed as jest.Mock;
+
+    getInputSpy = core.getInput as jest.Mock;
+    (getInputSpy as jest.Mock<typeof core.getInput>).mockImplementation(
+      (input: string) => inputs[input]
+    );
+
+    getExecOutputSpy = exec.getExecOutput as jest.Mock;
+    (
+      getExecOutputSpy as jest.Mock<typeof exec.getExecOutput>
+    ).mockImplementation(async (input: string) => {
+      if (input.includes('pip')) {
+        return {stdout: 'pip', stderr: '', exitCode: 0};
+      }
+
+      return {stdout: '', stderr: 'Error occured', exitCode: 2};
+    });
+
+    saveCacheSpy = cache.saveCache as jest.Mock;
+    saveCacheSpy.mockImplementation(() => undefined);
+  });
+
+  describe('Package manager validation', () => {
+    it('Package manager is not provided, skip caching', async () => {
+      inputs['cache'] = '';
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).not.toHaveBeenCalled();
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Validate unchanged cache is not saved', () => {
+    it('should not save cache for pip', async () => {
+      inputs['cache'] = 'pip';
+      inputs['python-version'] = '3.10.0';
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenCalledWith(
+        `paths for caching are ${__dirname}`
+      );
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('should not save cache for pipenv', async () => {
+      inputs['cache'] = 'pipenv';
+      inputs['python-version'] = '3.10.0';
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(debugSpy).toHaveBeenCalledWith(
+        `paths for caching are ${__dirname}`
+      );
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('action saves the cache', () => {
+    it('saves cache from pip', async () => {
+      inputs['cache'] = 'pip';
+      inputs['python-version'] = '3.10.0';
+      (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+        (name: string) => {
+          if (name === State.CACHE_MATCHED_KEY) {
+            return requirementsHash;
+          } else if (name === State.CACHE_PATHS) {
+            return JSON.stringify([__dirname]);
+          } else {
+            return pipFileLockHash;
+          }
+        }
+      );
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${requirementsHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${pipFileLockHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves cache from pipenv', async () => {
+      inputs['cache'] = 'pipenv';
+      inputs['python-version'] = '3.10.0';
+      (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+        (name: string) => {
+          if (name === State.CACHE_MATCHED_KEY) {
+            return pipFileLockHash;
+          } else if (name === State.CACHE_PATHS) {
+            return JSON.stringify([__dirname]);
+          } else {
+            return requirementsHash;
+          }
+        }
+      );
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${pipFileLockHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${requirementsHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves cache from poetry', async () => {
+      inputs['cache'] = 'poetry';
+      inputs['python-version'] = '3.10.0';
+      (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+        (name: string) => {
+          if (name === State.CACHE_MATCHED_KEY) {
+            return poetryLockHash;
+          } else if (name === State.CACHE_PATHS) {
+            return JSON.stringify([__dirname]);
+          } else {
+            return requirementsHash;
+          }
+        }
+      );
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith(
+        `Cache hit occurred on the primary key ${poetryLockHash}, not saving cache.`
+      );
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${requirementsHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves with -1 cacheId , should not fail workflow', async () => {
+      inputs['cache'] = 'poetry';
+      inputs['python-version'] = '3.10.0';
+      (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+        (name: string) => {
+          if (name === State.STATE_CACHE_PRIMARY_KEY) {
+            return poetryLockHash;
+          } else if (name === State.CACHE_PATHS) {
+            return JSON.stringify([__dirname]);
+          } else {
+            return requirementsHash;
+          }
+        }
+      );
+
+      saveCacheSpy.mockImplementation(() => {
+        return -1;
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalled();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(infoSpy).not.toHaveBeenLastCalledWith(
+        `Cache saved with the key: ${poetryLockHash}`
+      );
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+
+    it('saves with error from toolkit, should not fail the workflow', async () => {
+      inputs['cache'] = 'npm';
+      inputs['python-version'] = '3.10.0';
+      (getStateSpy as jest.Mock<typeof core.getState>).mockImplementation(
+        (name: string) => {
+          if (name === State.STATE_CACHE_PRIMARY_KEY) {
+            return poetryLockHash;
+          } else if (name === State.CACHE_PATHS) {
+            return JSON.stringify([__dirname]);
+          } else {
+            return requirementsHash;
+          }
+        }
+      );
+
+      saveCacheSpy.mockImplementation(() => {
+        throw new cache.ValidationError('Validation failed');
+      });
+
+      await run();
+
+      expect(getInputSpy).toHaveBeenCalled();
+      expect(getStateSpy).toHaveBeenCalledTimes(3);
+      expect(infoSpy).not.toHaveBeenCalledWith();
+      expect(saveCacheSpy).toHaveBeenCalled();
+      expect(setFailedSpy).not.toHaveBeenCalled();
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    inputs = {};
+  });
+});

__tests__/check-python-path.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -euo pipefail
+
+PYTHON_PATH="$1"
+PATH_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')
+PYTHON_PATH_EXECUTABLE=$("${PYTHON_PATH}" -c 'import sys; print(sys.executable)')
+if [ "${PATH_EXECUTABLE}" != "${PYTHON_PATH_EXECUTABLE}" ]; then
+    echo "Executable mismatch."
+    echo "python in PATH is: ${PATH_EXECUTABLE}"
+    echo "python-path (${PYTHON_PATH}) is: ${PYTHON_PATH_EXECUTABLE}"
+    exit 1
+fi
+echo "python-path: ${PYTHON_PATH}"

__tests__/data/Pipfile

@@ -0,0 +1,13 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+flake8 = "==6.0.0"
+numpy = "==2.4.6"
+
+[dev-packages]
+
+[requires]
+python_version = "*"

__tests__/data/Pipfile.lock

@@ -0,0 +1,133 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "0060d5c4915f1f35aae1f3e9fa6de3f65d1a851e6e33ac57a04665d5d1c796fa"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "*"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "flake8": {
+            "hashes": [
+                "sha256:3833794e27ff64ea4e9cf5d410082a8b97ff1a06c16aa3d2027339cd0f1195c7",
+                "sha256:c61007e76655af75e6785a931f452915b371dc48f56efd765247c8fe68f2b181"
+            ],
+            "index": "pypi",
+            "markers": "python_full_version >= '3.8.1'",
+            "version": "==6.0.0"
+        },
+        "mccabe": {
+            "hashes": [
+                "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325",
+                "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==0.7.0"
+        },
+        "numpy": {
+            "hashes": [
+                "sha256:001fbb8e08d942dd57599e781f2472269ee7f2755fae407b4f67b2f0b17da3f1",
+                "sha256:0280e0356c0829a18d9de1cb7eee50ec22ca639878d7240307ca0943d73cd2c4",
+                "sha256:043191bfa8eab18c776647b62723ac9dddece59743b13f49b2016094129c2b3f",
+                "sha256:06ca2f61ec4385a07a6977c55ba998a4466c123642b4a32694d3128fce18c079",
+                "sha256:0a041d3d761dc3c35cc56ce0351506a02bcbc25f7b169f652435141a17db9096",
+                "sha256:0ab0a9c4ffb1a6d95ef519fe4247dba8eb6b18ad93999f76b7f657039acabd47",
+                "sha256:0c9136e14ed34a9e343a31c533d78a9813a69a3148332bce5e9821cb2f996e66",
+                "sha256:110f8b71aacb688ec69062bb7f6938a0f8acb01b7c1c4beb453c65b6d234584d",
+                "sha256:112b06a867b235ef466ed3508ddf0238050df9c727cafb5301ac385b899189a1",
+                "sha256:17f9ade344e7d9b464a084d69bcf18fc691cb1db67c62ed80820bf4926d78f0e",
+                "sha256:1e254a00cdf42b1e4d5b3d68d33af63268d41340d8885df2ab6470f2e1500147",
+                "sha256:1e978ec1e8bd0e0e4de6bb75de9d30cbb74db6b6a2bb727618613703ca0167dd",
+                "sha256:25c692919ac5a01f170a3bfcd62d745b24fd095c353d50812637d6fcab442e75",
+                "sha256:260a5d70215b61ab4fadf5c7baacd64821842975eea312125ed3c39a6391b063",
+                "sha256:2803abfebfc990042cd494d8ce2d5f82e9d847af6d35ec486923aa19dbad5e73",
+                "sha256:29a287e0cf63ff528da061de6b9f64a4618da591ca1046aafc54062e40ca7eab",
+                "sha256:29cb7f67d10b479ff07c17d33e39f78c07f71c40ef30d63c153d340e96cd3fb4",
+                "sha256:3213d622a0283a39a93d188f3cf72b26862df52fbb4ca3697f51705016523d41",
+                "sha256:33111801a01c12a8a1e3721f0a9232f8cfc8ae2c6b7098167e6f623c6073f402",
+                "sha256:357cc07a6d7b0b182ff02249616a03742827ebb1277546b5c7cd7f7620a45698",
+                "sha256:38efbc8de75c7a0fc1ac190162d892787f3f47b57cc291231aafee36b80982b7",
+                "sha256:4081eb135ac24158bd51cdfbef16f1c64df7063b1143f24731387137c092bec8",
+                "sha256:40fdc1ae7125e518ea98e53e69a4ebc27e1fd50510c47b7ea130cf21e5e1d42b",
+                "sha256:4cfe66903cc32a9921a6733d96b19bb6abf310397581bbad89c228f5abaf0ee8",
+                "sha256:511dbaf848decaaaf4b4ca48032619fb3138710c4bf7da7617765edad1ef96b0",
+                "sha256:55cced7c52e981362f708ad635198e97a752dfba412cc03c23bbf3bd8d5cd662",
+                "sha256:56b39e5e0622a09a25bf5baf62f4bcf0cb8a41ae6e2819cf49bbc5a74c083f91",
+                "sha256:5dbbdb29840ca3d91ee0fece42fc29278886d908280bfec0a5846c6f901a3eb0",
+                "sha256:5f9fb9157b4ce2971008323afe46053787b526ef624fea915b261468a8421a0f",
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__tests__/data/inner/poetry.lock

@@ -0,0 +1 @@
+../poetry.lock

__tests__/data/inner/pyproject.toml

@@ -0,0 +1 @@
+../pyproject.toml

__tests__/data/pipenv-requirements.txt

@@ -0,0 +1,2 @@
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__tests__/data/poetry.lock

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+files = [
+    {file = "zipp-3.20.2-py3-none-any.whl", hash = "sha256:a817ac80d6cf4b23bf7f2828b7cabf326f15a001bea8b1f9b49631780ba28350"},
+    {file = "zipp-3.20.2.tar.gz", hash = "sha256:bc9eb26f4506fda01b81bcde0ca78103b6e62f991b381fec825435c836edbc29"},
+]
+
+[package.extras]
+check = ["pytest-checkdocs (>=2.4)", "pytest-ruff (>=0.2.1) ; sys_platform != \"cygwin\""]
+cover = ["pytest-cov"]
+doc = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
+enabler = ["pytest-enabler (>=2.2)"]
+test = ["big-O", "importlib-resources ; python_version < \"3.9\"", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more-itertools", "pytest (>=6,!=8.1.*)", "pytest-ignore-flaky"]
+type = ["pytest-mypy"]
+
+[metadata]
+lock-version = "2.1"
+python-versions = ">=3.9,<3.14"
+content-hash = "9a14798bf374c540031f893ff18f9b187bd984391e9da99d13c0e6710b7de09e"

__tests__/data/pyproject.toml

@@ -0,0 +1,18 @@
+[tool.poetry]
+name = "testactiontasks"
+version = "0.1.0"
+description = ""
+authors = ["Your Name <you@example.com>"]
+
+[tool.poetry.dependencies]
+python = ">=3.9,<3.14"
+flake8 = "^4.0.1"
+pyinstaller = "6.10.0"
+setuptools = ">=78.1.1" 
+packaging = ">=22.0,<26"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"

__tests__/data/pypy.json

@@ -0,0 +1,623 @@
+[
+  {
+    "pypy_version": "7.3.8rc2",
+    "python_version": "3.8.12",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2022-02-11",
+    "files": [
+      {
+        "filename": "pypy3.8-v7.3.8rc2-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-darwin64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-darwin64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-s390x.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-win64.zip",
+        "arch": "x64",
+        "platform": "win64",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-win64.zip"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-win32.zip"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.4.0rc1",
+    "python_version": "3.6.12",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2021-11-11",
+    "files": [
+      {
+        "filename": "pypy3.6-v7.4.0rc1-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-darwin64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-darwin64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-win32.zip"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.3",
+    "python_version": "3.6.12",
+    "stable": true,
+    "latest_pypy": true,
+    "date": "2020-11-21",
+    "files": [
+      {
+        "filename": "pypy3.6-v7.3.3-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-darwin64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-darwin64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-win32.zip"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.3rc1",
+    "python_version": "3.6.12",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2020-11-11",
+    "files": [
+      {
+        "filename": "pypy3.6-v7.3.3rc1-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-linux32rc1.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3rc1-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3rc1-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3-win32rc1.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-win32.zip"
+      },
+      {
+        "filename": "pypy3.6-v7.3.3rc1-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.3rc1-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.4rc1",
+    "python_version": "2.7.18",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2021-03-19",
+    "files": [
+      {
+        "filename": "pypy2.7-v7.3.4rc1-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.downloads.python.org/pypy/pypy2.7-v7.3.4rc1-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.4rc1-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.downloads.python.org/pypy/pypy2.7-v7.3.4rc1-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.4rc1-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.downloads.python.org/pypy/pypy2.7-v7.3.4rc1-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.4rc1-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.downloads.python.org/pypy/pypy2.7-v7.3.4rc1-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.4rc1-win64.zip",
+        "arch": "x64",
+        "platform": "win64",
+        "download_url": "https://test.downloads.python.org/pypy/pypy2.7-v7.3.4rc1-win64.zip"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.3rc2",
+    "python_version": "3.7.7",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2020-11-11",
+    "files": [
+      {
+        "filename": "test.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "test.tar.bz2"
+      },
+      {
+        "filename": "test.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "test.tar.bz2"
+      },
+      {
+        "filename": "test.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "test.tar.bz2"
+      },
+      {
+        "filename": "test.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "test.tar.bz2"
+      },
+      {
+        "filename": "test.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "test.zip"
+      },
+      {
+        "filename": "test.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "test.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.3",
+    "python_version": "3.7.9",
+    "stable": true,
+    "latest_pypy": true,
+    "date": "2020-11-21",
+    "files": [
+      {
+        "filename": "pypy3.7-v7.3.3-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.3-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.3-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.3-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.3-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-win32.zip"
+      },
+      {
+        "filename": "pypy3.7-v7.3.3-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.3-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.3",
+    "python_version": "2.7.18",
+    "stable": true,
+    "latest_pypy": true,
+    "date": "2020-11-21",
+    "files": [
+      {
+        "filename": "pypy2.7-v7.3.3-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.3-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.3-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.3-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.3-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-win32.zip"
+      },
+      {
+        "filename": "pypy2.7-v7.3.3-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.3-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.2",
+    "python_version": "3.6.9",
+    "stable": true,
+    "latest_pypy": true,
+    "date": "2020-09-25",
+    "files": [
+      {
+        "filename": "pypy3.6-v7.3.2-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.2-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.2-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.2-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.3.2-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-win32.zip"
+      },
+      {
+        "filename": "pypy3.6-v7.3.2-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.3.2-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.2",
+    "python_version": "3.7.9",
+    "stable": true,
+    "latest_pypy": false,
+    "date": "2020-09-25",
+    "files": [
+      {
+        "filename": "pypy3.7-v7.3.2-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.2-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.2-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.2-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.7-v7.3.2-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-win32.zip"
+      },
+      {
+        "filename": "pypy3.7-v7.3.2-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.7-v7.3.2-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.3.2",
+    "python_version": "2.7.13",
+    "stable": true,
+    "latest_pypy": true,
+    "date": "2020-09-25",
+    "files": [
+      {
+        "filename": "pypy2.7-v7.3.2-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.2-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.2-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.2-osx64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-osx64.tar.bz2"
+      },
+      {
+        "filename": "pypy2.7-v7.3.2-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-win32.zip"
+      },
+      {
+        "filename": "pypy2.7-v7.3.2-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy2.7-v7.3.2-s390x.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "nightly",
+    "python_version": "2.7",
+    "stable": false,
+    "latest_pypy": false,
+    "files": [
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "http://nightlyBuilds.org/filename.zip"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "nightly",
+    "python_version": "3.7",
+    "stable": false,
+    "latest_pypy": false,
+    "files": [
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "http://nightlyBuilds.org/filename.zip"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      }
+    ]
+  },
+  {
+    "pypy_version": "nightly",
+    "python_version": "3.6",
+    "stable": false,
+    "latest_pypy": false,
+    "files": [
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      },
+      {
+        "filename": "filename.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "http://nightlyBuilds.org/filename.zip"
+      },
+      {
+        "filename": "filename.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "http://nightlyBuilds.org/filename.tar.bz2"
+      }
+    ]
+  }
+]

__tests__/data/requirements-linux.txt

@@ -0,0 +1,12 @@
+certifi==2024.7.4
+chardet==3.0.4
+docutils==0.16
+idna==3.15
+Kivy==2.0.0rc3
+Kivy-Garden==0.1.4
+packaging==20.7
+pdf2image==1.12.1
+Pygments==2.20.0
+requests==2.33.0
+urllib3==2.7.0
+xlrd==1.2.0

__tests__/data/requirements.txt

@@ -0,0 +1,47 @@
+altgraph==0.17.2
+
+certifi==2024.7.4
+
+chardet==3.0.4
+
+docutils==0.16
+
+future==0.18.2; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'
+
+idna==3.15
+
+itsdangerous==1.1.0
+
+kivy-deps-angle==0.3.0
+
+kivy-deps.glew==0.1.12
+
+kivy-deps.gstreamer==0.1.17
+
+kivy-deps.sdl2==0.1.22
+
+kivy-garden==0.1.4
+
+kivy==1.11.1
+
+packaging==21.0
+
+pdf2image==1.12.1
+
+pefile==2021.9.3; python_full_version >= '3.6.0'
+
+pillow>=10.2.0
+
+pygments==2.20.0
+
+pyinstaller==6.10.0
+
+pyparsing==2.4.7; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'
+
+pywin32-ctypes==0.2.0
+
+requests==2.33.0
+
+urllib3==2.7.0
+
+xlrd==1.2.0

__tests__/data/versions-manifest.json

@@ -1,4 +1,29 @@
 [
+    {
+      "version": "1.2.4-beta.2",
+      "stable": false,
+      "release_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5",
+      "files": [
+        {
+          "filename": "sometool-1.2.4-linux-x64.tar.gz",
+          "arch": "x64",
+          "platform": "linux",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-linux-x64.tar.gz"
+        },
+        {
+          "filename": "sometool-1.2.4-darwin-x64.tar.gz",
+          "arch": "x64",
+          "platform": "darwin",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-darwin-x64.tar.gz"
+        },
+        {
+          "filename": "sometool-1.2.4-win32-x64.tar.gz",
+          "arch": "x64",
+          "platform": "win32",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-win32-x64.tar.gz"
+        }
+      ]
+    },
     {
       "version": "1.2.3",
       "stable": true,
@@ -25,28 +50,28 @@
       ]
     },
     {
-      "version": "1.2.3-beta.2",
+      "version": "1.1.0-beta.2",
       "stable": false,
-      "release_url": "https://github.com/actions/sometool/releases/tag/1.2.3-beta.2-20200402.5",
+      "release_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5",
       "files": [
         {
-          "filename": "sometool-1.2.3-linux-x64.tar.gz",
+          "filename": "sometool-1.1.0-linux-x64.tar.gz",
           "arch": "x64",
           "platform": "linux",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-beta.2-20200402.5/sometool-1.2.3-linux-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-linux-x64.tar.gz"
         },
         {
-          "filename": "sometool-1.2.3-darwin-x64.tar.gz",
+          "filename": "sometool-1.1.0-darwin-x64.tar.gz",
           "arch": "x64",
           "platform": "darwin",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-20200402.5/sometool-1.2.3-darwin-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-darwin-x64.tar.gz"
         },
         {
-          "filename": "sometool-1.2.3-win32-x64.tar.gz",
+          "filename": "sometool-1.1.0-win32-x64.tar.gz",
           "arch": "x64",
           "platform": "win32",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-20200402.5/sometool-1.2.3-win32-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-win32-x64.tar.gz"
         }
       ]
     }
-]
+]

__tests__/find-graalpy.test.ts

@@ -0,0 +1,432 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import fs from 'fs';
+import * as path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+import * as semver from 'semver';
+
+// Mock @actions modules
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  find: jest.fn(),
+  findAllVersions: jest.fn(),
+  downloadTool: jest.fn(),
+  extractZip: jest.fn(),
+  extractTar: jest.fn(),
+  extract7z: jest.fn(),
+  extractXar: jest.fn(),
+  cacheDir: jest.fn(),
+  cacheFile: jest.fn(),
+  getManifestFromRepo: jest.fn(),
+  findFromManifest: jest.fn(),
+  evaluateVersions: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const tc = await import('@actions/tool-cache');
+const exec = await import('@actions/exec');
+const finder = await import('../src/find-graalpy.js');
+const utils = await import('../src/utils.js');
+
+// Non-mocked imports
+import {HttpClient} from '@actions/http-client';
+import type * as ifm from '@actions/http-client/lib/interfaces';
+
+import type {IGraalPyManifestRelease} from '../src/utils.js';
+import manifestData from './data/graalpy.json' with {type: 'json'};
+
+const architecture = 'x64';
+
+const toolDir = path.join(__dirname, 'runner', 'tools');
+const tempDir = path.join(__dirname, 'runner', 'temp');
+
+describe('parseGraalPyVersion', () => {
+  it.each([
+    ['graalpy-23', '23'],
+    ['graalpy-23.0', '23.0'],
+    ['graalpy23.0', '23.0']
+  ])('%s -> %s', (input, expected) => {
+    expect(finder.parseGraalPyVersion(input)).toEqual(expected);
+  });
+
+  it.each(['', 'graalpy-', 'graalpy', 'p', 'notgraalpy-'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parseGraalPyVersion(input)).toThrow(
+        "Invalid 'version' property for GraalPy. GraalPy version should be specified as 'graalpy<python-version>' or 'graalpy-<python-version>'. See README for examples and documentation."
+      );
+    }
+  );
+});
+
+describe('findGraalPyToolCache', () => {
+  const actualGraalPyVersion = '23.0.0';
+  const graalpyPath = path.join('GraalPy', actualGraalPyVersion, architecture);
+  let tcFind: jest.Mock;
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let addPathSpy: jest.Mock;
+  let exportVariableSpy: jest.Mock;
+  let setOutputSpy: jest.Mock;
+
+  beforeEach(() => {
+    tcFind = tc.find as jest.Mock;
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementation(
+      (toolname: string, pythonVersion: string) => {
+        const semverVersion = new semver.Range(pythonVersion);
+        return semver.satisfies(actualGraalPyVersion, semverVersion)
+          ? graalpyPath
+          : '';
+      }
+    );
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => null);
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    addPathSpy = core.addPath as jest.Mock;
+    addPathSpy.mockImplementation(() => null);
+
+    exportVariableSpy = core.exportVariable as jest.Mock;
+    exportVariableSpy.mockImplementation(() => null);
+
+    setOutputSpy = core.setOutput as jest.Mock;
+    setOutputSpy.mockImplementation(() => null);
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('GraalPy exists on the path and versions are satisfied', () => {
+    expect(finder.findGraalPyToolCache('23.0.0', architecture)).toEqual({
+      installDir: graalpyPath,
+      resolvedGraalPyVersion: actualGraalPyVersion
+    });
+  });
+
+  it('GraalPy exists on the path and versions are satisfied with semver', () => {
+    expect(finder.findGraalPyToolCache('23.0', architecture)).toEqual({
+      installDir: graalpyPath,
+      resolvedGraalPyVersion: actualGraalPyVersion
+    });
+  });
+
+  it("GraalPy exists on the path, but version doesn't match", () => {
+    expect(finder.findGraalPyToolCache('22.3', architecture)).toEqual({
+      installDir: '',
+      resolvedGraalPyVersion: ''
+    });
+  });
+});
+
+describe('findGraalPyVersion', () => {
+  let getBooleanInputSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let infoSpy: jest.Mock;
+  let addPathSpy: jest.Mock;
+  let exportVariableSpy: jest.Mock;
+  let setOutputSpy: jest.Mock;
+  let tcFind: jest.Mock;
+  let spyExtractZip: jest.Mock;
+  let spyExtractTar: jest.Mock;
+  let spyHttpClient: jest.SpiedFunction<typeof HttpClient.prototype.getJson>;
+  let spyExistsSync: jest.SpiedFunction<typeof fs.existsSync>;
+  let spyExec: jest.Mock;
+  let spySymlinkSync: jest.SpiedFunction<typeof fs.symlinkSync>;
+  let spyDownloadTool: jest.Mock;
+  let spyFsReadDir: jest.SpiedFunction<typeof fs.readdirSync>;
+  let spyCacheDir: jest.Mock;
+  let spyChmodSync: jest.SpiedFunction<typeof fs.chmodSync>;
+  let spyCoreAddPath: jest.Mock;
+  let spyCoreExportVariable: jest.Mock;
+  const env = process.env;
+
+  beforeEach(() => {
+    getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => false);
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    addPathSpy = core.addPath as jest.Mock;
+    addPathSpy.mockImplementation(() => null);
+
+    exportVariableSpy = core.exportVariable as jest.Mock;
+    exportVariableSpy.mockImplementation(() => null);
+
+    setOutputSpy = core.setOutput as jest.Mock;
+    setOutputSpy.mockImplementation(() => null);
+
+    process.env = {...env};
+    tcFind = tc.find as jest.Mock;
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementation(
+      (tool: string, version: string) => {
+        const semverRange = new semver.Range(version);
+        let graalpyPath = '';
+        if (semver.satisfies('23.0.0', semverRange)) {
+          graalpyPath = path.join(toolDir, 'GraalPy', '23.0.0', architecture);
+        }
+        return graalpyPath;
+      }
+    );
+
+    spyDownloadTool = tc.downloadTool as jest.Mock;
+    spyDownloadTool.mockImplementation(() => path.join(tempDir, 'GraalPy'));
+
+    spyExtractZip = tc.extractZip as jest.Mock;
+    spyExtractZip.mockImplementation(() => tempDir);
+
+    spyExtractTar = tc.extractTar as jest.Mock;
+    spyExtractTar.mockImplementation(() => tempDir);
+
+    spyFsReadDir = jest.spyOn(fs, 'readdirSync');
+    spyFsReadDir.mockImplementation(() => ['GraalPyTest'] as any);
+
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient.mockImplementation(
+      async (): Promise<ifm.TypedResponse<IGraalPyManifestRelease[]>> => {
+        const result = JSON.stringify(manifestData);
+        return {
+          statusCode: 200,
+          headers: {},
+          result: JSON.parse(result) as IGraalPyManifestRelease[]
+        };
+      }
+    );
+
+    spyExec = exec.exec as jest.Mock;
+    spyExec.mockImplementation(() => undefined);
+
+    spySymlinkSync = jest.spyOn(fs, 'symlinkSync');
+    spySymlinkSync.mockImplementation(() => undefined);
+
+    spyExistsSync = jest.spyOn(fs, 'existsSync');
+    spyExistsSync.mockReturnValue(true);
+
+    spyCoreAddPath = core.addPath as jest.Mock;
+
+    spyCoreExportVariable = core.exportVariable as jest.Mock;
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+    process.env = env;
+  });
+
+  it('found GraalPy in toolcache', async () => {
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-23.0',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).resolves.toEqual('23.0.0');
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('throw on invalid input format', async () => {
+    await expect(
+      finder.findGraalPyVersion('graalpy-x23', architecture, true, false, false)
+    ).rejects.toThrow();
+  });
+
+  it('found and install successfully', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '23.0.0', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-23.0.0',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).resolves.toEqual('23.0.0');
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('found and install successfully without environment update', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '23.0.0', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-23.0.0',
+        architecture,
+        false,
+        false,
+        false
+      )
+    ).resolves.toEqual('23.0.0');
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
+  });
+
+  it('throw if release is not found', async () => {
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-19.0.0',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).rejects.toThrow(
+      `GraalPy version 19.0.0 with arch ${architecture} not found`
+    );
+  });
+
+  it('check-latest enabled version found and used from toolcache', async () => {
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-23.0.0',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual('23.0.0');
+
+    expect(infoSpy).toHaveBeenCalledWith('Resolved as GraalPy 23.0.0');
+  });
+
+  it('check-latest enabled version found and install successfully', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '23.0.0', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-23.0.0',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual('23.0.0');
+    expect(infoSpy).toHaveBeenCalledWith('Resolved as GraalPy 23.0.0');
+  });
+
+  it('check-latest enabled version is not found and used from toolcache', async () => {
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementationOnce(
+      (tool: string, version: string) => {
+        const semverRange = new semver.Range(version);
+        let graalpyPath = '';
+        if (semver.satisfies('22.3.4', semverRange)) {
+          graalpyPath = path.join(toolDir, 'GraalPy', '22.3.4', architecture);
+        }
+        return graalpyPath;
+      }
+    );
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy-22.3.4',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual('22.3.4');
+
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Failed to resolve GraalPy 22.3.4 from manifest'
+    );
+  });
+
+  it('found and install successfully, pre-release fallback', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '24.1', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findGraalPyVersion(
+        'graalpy24.1',
+        architecture,
+        false,
+        false,
+        false
+      )
+    ).rejects.toThrow();
+    await expect(
+      finder.findGraalPyVersion('graalpy24.1', architecture, false, false, true)
+    ).resolves.toEqual('24.1.0-ea.9');
+  });
+});

__tests__/find-pypy.test.ts

@@ -0,0 +1,526 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import fs from 'fs';
+import * as path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+import * as semver from 'semver';
+
+// Mock @actions modules
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  find: jest.fn(),
+  findAllVersions: jest.fn(),
+  downloadTool: jest.fn(),
+  extractZip: jest.fn(),
+  extractTar: jest.fn(),
+  extract7z: jest.fn(),
+  extractXar: jest.fn(),
+  cacheDir: jest.fn(),
+  cacheFile: jest.fn(),
+  getManifestFromRepo: jest.fn(),
+  findFromManifest: jest.fn(),
+  evaluateVersions: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Import real utils BEFORE mock registration to get real function references
+const realUtils = await import('../src/utils.js');
+
+// Mock local utils module for readExactPyPyVersionFile/writeExactPyPyVersionFile
+jest.unstable_mockModule('../src/utils.js', () => ({
+  ...realUtils,
+  readExactPyPyVersionFile: jest.fn(),
+  writeExactPyPyVersionFile: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const tc = await import('@actions/tool-cache');
+const exec = await import('@actions/exec');
+const utils = await import('../src/utils.js');
+const finder = await import('../src/find-pypy.js');
+
+// Non-mocked imports
+import {HttpClient} from '@actions/http-client';
+import type * as ifm from '@actions/http-client/lib/interfaces';
+
+import type {IPyPyManifestRelease} from '../src/utils.js';
+import manifestData from './data/pypy.json' with {type: 'json'};
+
+const IS_WINDOWS = utils.IS_WINDOWS;
+const getPyPyVersionFromPath = utils.getPyPyVersionFromPath;
+
+let architecture: string;
+
+if (IS_WINDOWS) {
+  architecture = 'x86';
+} else {
+  architecture = 'x64';
+}
+
+const toolDir = path.join(__dirname, 'runner', 'tools');
+const tempDir = path.join(__dirname, 'runner', 'temp');
+
+describe('parsePyPyVersion', () => {
+  it.each([
+    ['pypy-3.6-v7.3.3', {pythonVersion: '3.6', pypyVersion: 'v7.3.3'}],
+    ['pypy-3.6-v7.3.x', {pythonVersion: '3.6', pypyVersion: 'v7.3.x'}],
+    ['pypy-3.6-v7.x', {pythonVersion: '3.6', pypyVersion: 'v7.x'}],
+    ['pypy-3.6', {pythonVersion: '3.6', pypyVersion: 'x'}],
+    ['pypy-3.6-nightly', {pythonVersion: '3.6', pypyVersion: 'nightly'}],
+    ['pypy-3.6-v7.3.3rc1', {pythonVersion: '3.6', pypyVersion: 'v7.3.3-rc.1'}],
+    ['pypy3.8-v7.3.7', {pythonVersion: '3.8', pypyVersion: 'v7.3.7'}],
+    ['pypy3.8-v7.3.x', {pythonVersion: '3.8', pypyVersion: 'v7.3.x'}],
+    ['pypy3.8-v7.x', {pythonVersion: '3.8', pypyVersion: 'v7.x'}],
+    ['pypy3.8', {pythonVersion: '3.8', pypyVersion: 'x'}],
+    ['pypy3.9-nightly', {pythonVersion: '3.9', pypyVersion: 'nightly'}],
+    ['pypy3.9-v7.3.8rc1', {pythonVersion: '3.9', pypyVersion: 'v7.3.8-rc.1'}]
+  ])('%s -> %s', (input, expected) => {
+    expect(finder.parsePyPyVersion(input)).toEqual(expected);
+  });
+
+  it.each(['', 'pypy-', 'pypy', 'p', 'notpypy-'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrow(
+        "Invalid 'version' property for PyPy. PyPy version should be specified as 'pypy<python-version>' or 'pypy-<python-version>'. See README for examples and documentation."
+      );
+    }
+  );
+
+  it.each(['pypy-2', 'pypy-3', 'pypy2', 'pypy3', 'pypy3.x', 'pypy3.8.10'])(
+    'throw on invalid input "%s"',
+    input => {
+      expect(() => finder.parsePyPyVersion(input)).toThrow(
+        "Invalid format of Python version for PyPy. Python version should be specified in format 'x.y'. See README for examples and documentation."
+      );
+    }
+  );
+});
+
+describe('getPyPyVersionFromPath', () => {
+  it('/fake/toolcache/PyPy/3.6.5/x64 -> 3.6.5', () => {
+    expect(getPyPyVersionFromPath('/fake/toolcache/PyPy/3.6.5/x64')).toEqual(
+      '3.6.5'
+    );
+  });
+});
+
+describe('findPyPyToolCache', () => {
+  const actualPythonVersion = '3.6.17';
+  const actualPyPyVersion = '7.5.4';
+  const pypyPath = path.join('PyPy', actualPythonVersion, architecture);
+  let tcFind: jest.Mock;
+  let spyReadExactPyPyVersion: jest.Mock;
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let addPathSpy: jest.Mock;
+  let exportVariableSpy: jest.Mock;
+  let setOutputSpy: jest.Mock;
+
+  beforeEach(() => {
+    tcFind = tc.find as jest.Mock;
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementation(
+      (toolname: string, pythonVersion: string) => {
+        const semverVersion = new semver.Range(pythonVersion);
+        return semver.satisfies(actualPythonVersion, semverVersion)
+          ? pypyPath
+          : '';
+      }
+    );
+
+    spyReadExactPyPyVersion = utils.readExactPyPyVersionFile as jest.Mock;
+    spyReadExactPyPyVersion.mockImplementation(() => actualPyPyVersion);
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => null);
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    addPathSpy = core.addPath as jest.Mock;
+    addPathSpy.mockImplementation(() => null);
+
+    exportVariableSpy = core.exportVariable as jest.Mock;
+    exportVariableSpy.mockImplementation(() => null);
+
+    setOutputSpy = core.setOutput as jest.Mock;
+    setOutputSpy.mockImplementation(() => null);
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('PyPy exists on the path and versions are satisfied', () => {
+    expect(finder.findPyPyToolCache('3.6.17', 'v7.5.4', architecture)).toEqual({
+      installDir: pypyPath,
+      resolvedPythonVersion: actualPythonVersion,
+      resolvedPyPyVersion: actualPyPyVersion
+    });
+  });
+
+  it('PyPy exists on the path and versions are satisfied with semver', () => {
+    expect(finder.findPyPyToolCache('3.6', 'v7.5.x', architecture)).toEqual({
+      installDir: pypyPath,
+      resolvedPythonVersion: actualPythonVersion,
+      resolvedPyPyVersion: actualPyPyVersion
+    });
+  });
+
+  it("PyPy exists on the path, but Python version doesn't match", () => {
+    expect(finder.findPyPyToolCache('3.7', 'v7.5.4', architecture)).toEqual({
+      installDir: '',
+      resolvedPythonVersion: '',
+      resolvedPyPyVersion: ''
+    });
+  });
+
+  it("PyPy exists on the path, but PyPy version doesn't match", () => {
+    expect(finder.findPyPyToolCache('3.6', 'v7.5.1', architecture)).toEqual({
+      installDir: null,
+      resolvedPythonVersion: '',
+      resolvedPyPyVersion: ''
+    });
+  });
+});
+
+describe('findPyPyVersion', () => {
+  let getBooleanInputSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let infoSpy: jest.Mock;
+  let addPathSpy: jest.Mock;
+  let exportVariableSpy: jest.Mock;
+  let setOutputSpy: jest.Mock;
+  let tcFind: jest.Mock;
+  let spyExtractZip: jest.Mock;
+  let spyExtractTar: jest.Mock;
+  let spyHttpClient: jest.SpiedFunction<typeof HttpClient.prototype.getJson>;
+  let spyExistsSync: jest.SpiedFunction<typeof fs.existsSync>;
+  let spyExec: jest.Mock;
+  let spySymlinkSync: jest.SpiedFunction<typeof fs.symlinkSync>;
+  let spyDownloadTool: jest.Mock;
+  let spyReadExactPyPyVersion: jest.Mock;
+  let spyFsReadDir: jest.SpiedFunction<typeof fs.readdirSync>;
+  let spyWriteExactPyPyVersionFile: jest.Mock;
+  let spyCacheDir: jest.Mock;
+  let spyChmodSync: jest.SpiedFunction<typeof fs.chmodSync>;
+  let spyCoreAddPath: jest.Mock;
+  let spyCoreExportVariable: jest.Mock;
+  const env = process.env;
+
+  beforeEach(() => {
+    getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => false);
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    addPathSpy = core.addPath as jest.Mock;
+    addPathSpy.mockImplementation(() => null);
+
+    exportVariableSpy = core.exportVariable as jest.Mock;
+    exportVariableSpy.mockImplementation(() => null);
+
+    setOutputSpy = core.setOutput as jest.Mock;
+    setOutputSpy.mockImplementation(() => null);
+
+    process.env = {...env};
+    tcFind = tc.find as jest.Mock;
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementation(
+      (tool: string, version: string) => {
+        const semverRange = new semver.Range(version);
+        let pypyPath = '';
+        if (semver.satisfies('3.6.12', semverRange)) {
+          pypyPath = path.join(toolDir, 'PyPy', '3.6.12', architecture);
+        }
+        return pypyPath;
+      }
+    );
+
+    spyWriteExactPyPyVersionFile = utils.writeExactPyPyVersionFile as jest.Mock;
+    spyWriteExactPyPyVersionFile.mockImplementation(() => null);
+
+    spyReadExactPyPyVersion = utils.readExactPyPyVersionFile as jest.Mock;
+    spyReadExactPyPyVersion.mockImplementation(() => '7.3.3');
+
+    spyDownloadTool = tc.downloadTool as jest.Mock;
+    spyDownloadTool.mockImplementation(() => path.join(tempDir, 'PyPy'));
+
+    spyExtractZip = tc.extractZip as jest.Mock;
+    spyExtractZip.mockImplementation(() => tempDir);
+
+    spyExtractTar = tc.extractTar as jest.Mock;
+    spyExtractTar.mockImplementation(() => tempDir);
+
+    spyFsReadDir = jest.spyOn(fs, 'readdirSync');
+    spyFsReadDir.mockImplementation(() => ['PyPyTest'] as any);
+
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient.mockImplementation(
+      async (): Promise<ifm.TypedResponse<IPyPyManifestRelease[]>> => {
+        const result = JSON.stringify(manifestData);
+        return {
+          statusCode: 200,
+          headers: {},
+          result: JSON.parse(result) as IPyPyManifestRelease[]
+        };
+      }
+    );
+
+    spyExec = exec.exec as jest.Mock;
+    spyExec.mockImplementation(() => undefined);
+
+    spySymlinkSync = jest.spyOn(fs, 'symlinkSync');
+    spySymlinkSync.mockImplementation(() => undefined);
+
+    spyExistsSync = jest.spyOn(fs, 'existsSync');
+    spyExistsSync.mockReturnValue(true);
+
+    spyCoreAddPath = core.addPath as jest.Mock;
+
+    spyCoreExportVariable = core.exportVariable as jest.Mock;
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+    process.env = env;
+  });
+
+  it('found PyPy in toolcache', async () => {
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.6-v7.3.x',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('throw on invalid input format', async () => {
+    await expect(
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false, false)
+    ).rejects.toThrow();
+  });
+
+  it('throw on invalid input format pypy3.7-7.3.x', async () => {
+    await expect(
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false, false)
+    ).rejects.toThrow();
+  });
+
+  it('found and install successfully', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.7.7', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.7.9',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('found and install successfully without environment update', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.7.7', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        false,
+        false,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.7.9',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
+  });
+
+  it('throw if release is not found', async () => {
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.5.x',
+        architecture,
+        true,
+        false,
+        false
+      )
+    ).rejects.toThrow(
+      `PyPy version 3.7 (v7.5.x) with arch ${architecture} not found`
+    );
+  });
+
+  it('check-latest enabled version found and used from toolcache', async () => {
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.6-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.3.3'
+    });
+
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Resolved as PyPy 7.3.3 with Python (3.6.12)'
+    );
+  });
+
+  it('check-latest enabled version found and install successfully', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.7.7', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.7.9',
+      resolvedPyPyVersion: '7.3.3'
+    });
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Resolved as PyPy 7.3.3 with Python (3.7.9)'
+    );
+  });
+
+  it('check-latest enabled version is not found and used from toolcache', async () => {
+    (tcFind as jest.Mock<typeof tc.find>).mockImplementationOnce(
+      (tool: string, version: string) => {
+        const semverRange = new semver.Range(version);
+        let pypyPath = '';
+        if (semver.satisfies('3.8.8', semverRange)) {
+          pypyPath = path.join(toolDir, 'PyPy', '3.8.8', architecture);
+        }
+        return pypyPath;
+      }
+    );
+    await expect(
+      finder.findPyPyVersion(
+        'pypy-3.8-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.8.8',
+      resolvedPyPyVersion: '7.3.3'
+    });
+
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Failed to resolve PyPy v7.3.x with Python (3.8) from manifest'
+    );
+  });
+
+  it('found and install successfully, pre-release fallback', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.8.12', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion('pypy3.8', architecture, false, false, false)
+    ).rejects.toThrow();
+    await expect(
+      finder.findPyPyVersion('pypy3.8', architecture, false, false, true)
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.8.12',
+      resolvedPyPyVersion: '7.3.8rc2'
+    });
+  });
+});

__tests__/find-python.test.ts

@@ -0,0 +1,44 @@
+import {describe, it, expect} from '@jest/globals';
+import {desugarVersion, pythonVersionToSemantic} from '../src/find-python.js';
+
+describe('desugarVersion', () => {
+  it.each([
+    ['3.13', {version: '3.13', freethreaded: false}],
+    ['3.13t', {version: '3.13', freethreaded: true}],
+    ['3.13.1', {version: '3.13.1', freethreaded: false}],
+    ['3.13.1t', {version: '3.13.1', freethreaded: true}],
+    ['3.14-dev', {version: '~3.14.0-0', freethreaded: false}],
+    ['3.14t-dev', {version: '~3.14.0-0', freethreaded: true}]
+  ])('%s -> %s', (input, expected) => {
+    expect(desugarVersion(input)).toEqual(expected);
+  });
+});
+
+// Test the combined desugarVersion and pythonVersionToSemantic functions
+describe('pythonVersions', () => {
+  it.each([
+    ['3.13', {version: '3.13', freethreaded: false}],
+    ['3.13t', {version: '3.13', freethreaded: true}],
+    ['3.13.1', {version: '3.13.1', freethreaded: false}],
+    ['3.13.1t', {version: '3.13.1', freethreaded: true}],
+    ['3.14-dev', {version: '~3.14.0-0', freethreaded: false}],
+    ['3.14t-dev', {version: '~3.14.0-0', freethreaded: true}]
+  ])('%s -> %s', (input, expected) => {
+    const {version, freethreaded} = desugarVersion(input);
+    const semanticVersionSpec = pythonVersionToSemantic(version, false);
+    expect({version: semanticVersionSpec, freethreaded}).toEqual(expected);
+  });
+
+  it.each([
+    ['3.13', {version: '~3.13.0-0', freethreaded: false}],
+    ['3.13t', {version: '~3.13.0-0', freethreaded: true}],
+    ['3.13.1', {version: '3.13.1', freethreaded: false}],
+    ['3.13.1t', {version: '3.13.1', freethreaded: true}],
+    ['3.14-dev', {version: '~3.14.0-0', freethreaded: false}],
+    ['3.14t-dev', {version: '~3.14.0-0', freethreaded: true}]
+  ])('%s (allowPreReleases=true) -> %s', (input, expected) => {
+    const {version, freethreaded} = desugarVersion(input);
+    const semanticVersionSpec = pythonVersionToSemantic(version, true);
+    expect({version: semanticVersionSpec, freethreaded}).toEqual(expected);
+  });
+});

__tests__/finder.test.ts

@@ -1,6 +1,11 @@
-import io = require('@actions/io');
-import fs = require('fs');
-import path = require('path');
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import * as io from '@actions/io';
+import os from 'os';
+import fs from 'fs';
+import path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
 const toolDir = path.join(
   __dirname,
@@ -18,81 +23,317 @@ const tempDir = path.join(
 process.env['RUNNER_TOOL_CACHE'] = toolDir;
 process.env['RUNNER_TEMP'] = tempDir;
 
-import * as tc from '@actions/tool-cache';
-import * as finder from '../src/find-python';
-import * as installer from '../src/install-python';
+// Mock @actions modules
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
 
-const manifestData = require('./data/versions-manifest.json');
+// Pre-import real @actions/tool-cache before any mocks
+const realTc = await import('@actions/tool-cache');
+
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  ...realTc,
+  find: jest.fn(realTc.find),
+  getManifestFromRepo: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Pre-import real install-python AFTER all its dependency mocks are registered
+// so it captures the mocked @actions/tool-cache, @actions/core, @actions/exec
+const realInstaller = await import('../src/install-python.js');
+
+// Mock local install-python module - keep real getManifest/findReleaseFromManifest
+jest.unstable_mockModule('../src/install-python.js', () => ({
+  ...realInstaller,
+  installCpythonFromRelease: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const tc = await import('@actions/tool-cache');
+const finder = await import('../src/find-python.js');
+const installer = await import('../src/install-python.js');
+
+import manifestData from './data/versions-manifest.json' with {type: 'json'};
 
 describe('Finder tests', () => {
+  let writeSpy: jest.SpiedFunction<typeof process.stdout.write>;
+  let spyCoreAddPath: jest.Mock;
+  let spyCoreExportVariable: jest.Mock;
+  const env = process.env;
+
+  beforeEach(() => {
+    writeSpy = jest.spyOn(process.stdout, 'write');
+    writeSpy.mockImplementation(() => true);
+    process.env = {...env};
+    spyCoreAddPath = core.addPath as jest.Mock;
+    spyCoreExportVariable = core.exportVariable as jest.Mock;
+    // Restore real tc.find default (cleared by jest.resetAllMocks)
+    (tc.find as jest.Mock).mockImplementation(realTc.find as any);
+  });
+
   afterEach(() => {
     jest.resetAllMocks();
     jest.clearAllMocks();
+    jest.restoreAllMocks();
+    process.env = env;
   });
 
   it('Finds Python if it is installed', async () => {
+    const getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => false);
+
     const pythonDir: string = path.join(toolDir, 'Python', '3.0.0', 'x64');
     await io.mkdirP(pythonDir);
     fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.findPythonVersion('3.x', 'x64');
+    await finder.useCpythonVersion('3.x', 'x64', true, false, false, false);
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('Finds Python if it is installed without environment update', async () => {
+    const pythonDir: string = path.join(toolDir, 'Python', '3.0.0', 'x64');
+    await io.mkdirP(pythonDir);
+    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await finder.useCpythonVersion('3.x', 'x64', false, false, false, false);
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 
   it('Finds stable Python version if it is not installed, but exists in the manifest', async () => {
-    const findSpy: jest.SpyInstance = jest.spyOn(tc, 'getManifestFromRepo');
-    findSpy.mockImplementation(() => <tc.IToolRelease[]>manifestData);
+    const findSpy = tc.getManifestFromRepo as jest.Mock;
+    findSpy.mockImplementation(() => manifestData);
 
-    const installSpy: jest.SpyInstance = jest.spyOn(
-      installer,
-      'installCpythonFromRelease'
-    );
+    const getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => false);
+
+    const installSpy = installer.installCpythonFromRelease as jest.Mock;
     installSpy.mockImplementation(async () => {
       const pythonDir: string = path.join(toolDir, 'Python', '1.2.3', 'x64');
       await io.mkdirP(pythonDir);
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
-    await finder.findPythonVersion('1.2.3', 'x64');
+    await expect(
+      finder.useCpythonVersion('1.2.3', 'x64', true, false, false, false)
+    ).resolves.toEqual({
+      impl: 'CPython',
+      version: '1.2.3'
+    });
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
   });
 
   it('Finds pre-release Python version in the manifest', async () => {
-    const findSpy: jest.SpyInstance = jest.spyOn(tc, 'getManifestFromRepo');
-    findSpy.mockImplementation(() => <tc.IToolRelease[]>manifestData);
+    const findSpy = tc.getManifestFromRepo as jest.Mock;
+    findSpy.mockImplementation(() => manifestData);
 
-    const installSpy: jest.SpyInstance = jest.spyOn(
-      installer,
-      'installCpythonFromRelease'
-    );
+    const getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => false);
+
+    const installSpy = installer.installCpythonFromRelease as jest.Mock;
     installSpy.mockImplementation(async () => {
       const pythonDir: string = path.join(
         toolDir,
         'Python',
-        '1.2.3-beta.2',
+        '1.2.4-beta.2',
         'x64'
       );
       await io.mkdirP(pythonDir);
       fs.writeFileSync(`${pythonDir}.complete`, 'hello');
     });
     // This will throw if it doesn't find it in the manifest (because no such version exists)
-    await finder.findPythonVersion('1.2.3-beta.2', 'x64');
+    await expect(
+      finder.useCpythonVersion(
+        '1.2.4-beta.2',
+        'x64',
+        false,
+        false,
+        false,
+        false
+      )
+    ).resolves.toEqual({
+      impl: 'CPython',
+      version: '1.2.4-beta.2'
+    });
+  });
+
+  it('Check-latest true, finds the latest version in the manifest', async () => {
+    const findSpy = tc.getManifestFromRepo as jest.Mock;
+    findSpy.mockImplementation(() => manifestData);
+
+    const getBooleanInputSpy = core.getBooleanInput as jest.Mock;
+    getBooleanInputSpy.mockImplementation(() => true);
+
+    const cnSpy = jest.spyOn(process.stdout, 'write');
+    cnSpy.mockImplementation(() => true);
+
+    const addPathSpy = core.addPath as jest.Mock;
+    addPathSpy.mockImplementation(() => null);
+
+    const infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    const debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => {});
+
+    const pythonDir: string = path.join(toolDir, 'Python', '1.2.2', 'x64');
+    const expPath: string = path.join(toolDir, 'Python', '1.2.3', 'x64');
+
+    const installSpy = installer.installCpythonFromRelease as jest.Mock;
+    installSpy.mockImplementation(async () => {
+      await io.mkdirP(expPath);
+      fs.writeFileSync(`${expPath}.complete`, 'hello');
+    });
+
+    const tcFindSpy = tc.find as jest.Mock;
+    tcFindSpy
+      .mockImplementationOnce(() => '')
+      .mockImplementationOnce(() => expPath);
+
+    await io.mkdirP(pythonDir);
+    await io.rmRF(path.join(toolDir, 'Python', '1.2.3'));
+
+    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await finder.useCpythonVersion('1.2', 'x64', true, true, false, false);
+
+    expect(infoSpy).toHaveBeenCalledWith("Resolved as '1.2.3'");
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Version 1.2.3 was not found in the local cache'
+    );
+    expect(infoSpy).toHaveBeenCalledWith(
+      'Version 1.2.3 is available for downloading'
+    );
+    expect(installSpy).toHaveBeenCalled();
+    expect(addPathSpy).toHaveBeenCalledWith(expPath);
+    await finder.useCpythonVersion(
+      '1.2.4-beta.2',
+      'x64',
+      false,
+      true,
+      false,
+      false
+    );
+    expect(spyCoreAddPath).toHaveBeenCalled();
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'pythonLocation',
+      expect.anything()
+    );
+    expect(spyCoreExportVariable).toHaveBeenCalledWith(
+      'PKG_CONFIG_PATH',
+      expect.anything()
+    );
+  });
+
+  it('Finds stable Python version if it is not installed, but exists in the manifest, skipping newer pre-release', async () => {
+    const findSpy = tc.getManifestFromRepo as jest.Mock;
+    findSpy.mockImplementation(() => manifestData);
+
+    const installSpy = installer.installCpythonFromRelease as jest.Mock;
+    installSpy.mockImplementation(async () => {
+      const pythonDir: string = path.join(toolDir, 'Python', '1.2.3', 'x64');
+      await io.mkdirP(pythonDir);
+      fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    });
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await expect(
+      finder.useCpythonVersion('1.2', 'x64', false, false, false, false)
+    ).resolves.toEqual({
+      impl: 'CPython',
+      version: '1.2.3'
+    });
+  });
+
+  it('Finds Python version if it is not installed, but exists in the manifest, pre-release fallback', async () => {
+    const findSpy = tc.getManifestFromRepo as jest.Mock;
+    findSpy.mockImplementation(() => manifestData);
+
+    const installSpy = installer.installCpythonFromRelease as jest.Mock;
+    installSpy.mockImplementation(async () => {
+      const pythonDir: string = path.join(
+        toolDir,
+        'Python',
+        '1.1.0-beta.2',
+        'x64'
+      );
+      await io.mkdirP(pythonDir);
+      fs.writeFileSync(`${pythonDir}.complete`, 'hello');
+    });
+    // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
+    await expect(
+      finder.useCpythonVersion('1.1', 'x64', false, false, false, false)
+    ).rejects.toThrow();
+    await expect(
+      finder.useCpythonVersion('1.1', 'x64', false, false, true, false)
+    ).resolves.toEqual({
+      impl: 'CPython',
+      version: '1.1.0-beta.2'
+    });
+    // Check 1.1.0 version specifier does not fallback to '1.1.0-beta.2'
+    await expect(
+      finder.useCpythonVersion('1.1.0', 'x64', false, false, true, false)
+    ).rejects.toThrow();
   });
 
   it('Errors if Python is not installed', async () => {
     // This will throw if it doesn't find it in the cache and in the manifest (because no such version exists)
     let thrown = false;
     try {
-      await finder.findPythonVersion('3.300000', 'x64');
+      await finder.useCpythonVersion(
+        '3.300000',
+        'x64',
+        true,
+        false,
+        false,
+        false
+      );
     } catch {
       thrown = true;
     }
     expect(thrown).toBeTruthy();
-  });
-
-  it('Finds PyPy if it is installed', async () => {
-    const pythonDir: string = path.join(toolDir, 'PyPy', '2.0.0', 'x64');
-    await io.mkdirP(pythonDir);
-    fs.writeFileSync(`${pythonDir}.complete`, 'hello');
-    // This will throw if it doesn't find it in the cache (because no such version exists)
-    await finder.findPythonVersion('pypy2', 'x64');
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
   });
 });

__tests__/install-graalpy.test.ts

@@ -0,0 +1,314 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import fs from 'fs';
+import * as path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Mock @actions modules
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  find: jest.fn(),
+  findAllVersions: jest.fn(),
+  downloadTool: jest.fn(),
+  extractZip: jest.fn(),
+  extractTar: jest.fn(),
+  extract7z: jest.fn(),
+  extractXar: jest.fn(),
+  cacheDir: jest.fn(),
+  cacheFile: jest.fn(),
+  getManifestFromRepo: jest.fn(),
+  findFromManifest: jest.fn(),
+  evaluateVersions: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const tc = await import('@actions/tool-cache');
+const exec = await import('@actions/exec');
+
+// Non-mocked imports
+import {HttpClient} from '@actions/http-client';
+import type * as ifm from '@actions/http-client/lib/interfaces';
+
+const installer = await import('../src/install-graalpy.js');
+const utils = await import('../src/utils.js');
+
+import type {
+  IGraalPyManifestRelease,
+  IGraalPyManifestAsset
+} from '../src/utils.js';
+import manifestData from './data/graalpy.json' with {type: 'json'};
+
+const IS_WINDOWS = utils.IS_WINDOWS;
+
+const architecture = 'x64';
+
+const toolDir = path.join(__dirname, 'runner', 'tools');
+const tempDir = path.join(__dirname, 'runner', 'temp');
+
+describe('graalpyVersionToSemantic', () => {
+  it.each([
+    ['graalpy-24.1.0-ea.09', '24.1.0-ea.9'],
+    ['graal-23.0.0', '23.0.0'],
+    ['vm-23.0.x', '23.0.x'],
+    ['graal-23.x', '23.x']
+  ])('%s -> %s', (input, expected) => {
+    expect(installer.graalPyTagToVersion(input)).toEqual(expected);
+  });
+});
+
+describe('findRelease', () => {
+  const result = JSON.stringify(manifestData);
+  const releases = JSON.parse(result) as IGraalPyManifestRelease[];
+  const extension = IS_WINDOWS ? 'zip' : 'tar.gz';
+  const arch = installer.toGraalPyArchitecture(architecture);
+  const platform = installer.toGraalPyPlatform(process.platform);
+  const extensionName = `${platform}-${arch}.${extension}`;
+  const files: IGraalPyManifestAsset = {
+    name: `graalpython-23.0.0-${extensionName}`,
+    browser_download_url: `https://github.com/oracle/graalpython/releases/download/graal-23.0.0/graalpython-23.0.0-${extensionName}`
+  };
+  const filesRC1: IGraalPyManifestAsset = {
+    name: `graalpy-24.1.0-ea.09-${extensionName}`,
+    browser_download_url: `https://github.com/graalvm/graal-languages-ea-builds/releases/download/graalpy-24.1.0-ea.09/graalpy-24.1.0-ea.09-${extensionName}`
+  };
+
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let infoSpy: jest.Mock;
+
+  beforeEach(() => {
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+  });
+
+  it("GraalPy version doesn't match", () => {
+    const graalpyVersion = '12.0.0';
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, false)
+    ).toEqual(null);
+  });
+
+  it('GraalPy version matches', () => {
+    const graalpyVersion = '23.0.0';
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, false)
+    ).toMatchObject({
+      foundAsset: files,
+      resolvedGraalPyVersion: graalpyVersion
+    });
+  });
+
+  it('Preview version of GraalPy is found', () => {
+    const graalpyVersion = installer.graalPyTagToVersion('vm-24.1.0-ea.09');
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, false)
+    ).toMatchObject({
+      foundAsset: {
+        name: `graalpy-24.1.0-ea.09-${extensionName}`,
+        browser_download_url: `https://github.com/graalvm/graal-languages-ea-builds/releases/download/graalpy-24.1.0-ea.09/graalpy-24.1.0-ea.09-${extensionName}`
+      },
+      resolvedGraalPyVersion: '24.1.0-ea.9'
+    });
+  });
+
+  it('Latest GraalPy is found', () => {
+    const graalpyVersion = 'x';
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, false)
+    ).toMatchObject({
+      foundAsset: files,
+      resolvedGraalPyVersion: '23.0.0'
+    });
+  });
+
+  it('GraalPy version matches semver (pre-release)', () => {
+    const graalpyVersion = '24.1.x';
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, false)
+    ).toBeNull();
+    expect(
+      installer.findRelease(releases, graalpyVersion, architecture, true)
+    ).toMatchObject({
+      foundAsset: filesRC1,
+      resolvedGraalPyVersion: '24.1.0-ea.9'
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+});
+
+describe('installGraalPy', () => {
+  let tcFind: jest.Mock;
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let spyExtractZip: jest.Mock;
+  let spyExtractTar: jest.Mock;
+  let spyFsReadDir: jest.SpiedFunction<typeof fs.readdirSync>;
+  let spyFsWriteFile: jest.SpiedFunction<typeof fs.writeFileSync>;
+  let spyHttpClient: jest.SpiedFunction<typeof HttpClient.prototype.getJson>;
+  let spyExistsSync: jest.SpiedFunction<typeof fs.existsSync>;
+  let spyExec: jest.Mock;
+  let spySymlinkSync: jest.SpiedFunction<typeof fs.symlinkSync>;
+  let spyDownloadTool: jest.Mock;
+  let spyCacheDir: jest.Mock;
+  let spyChmodSync: jest.SpiedFunction<typeof fs.chmodSync>;
+
+  beforeEach(() => {
+    tcFind = tc.find as jest.Mock;
+    tcFind.mockImplementation(() =>
+      path.join('GraalPy', '3.6.12', architecture)
+    );
+
+    spyDownloadTool = tc.downloadTool as jest.Mock;
+    spyDownloadTool.mockImplementation(() => path.join(tempDir, 'GraalPy'));
+
+    spyExtractZip = tc.extractZip as jest.Mock;
+    spyExtractZip.mockImplementation(() => tempDir);
+
+    spyExtractTar = tc.extractTar as jest.Mock;
+    spyExtractTar.mockImplementation(() => tempDir);
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    spyFsReadDir = jest.spyOn(fs, 'readdirSync');
+    spyFsReadDir.mockImplementation(() => ['GraalPyTest'] as any);
+
+    spyFsWriteFile = jest.spyOn(fs, 'writeFileSync');
+    spyFsWriteFile.mockImplementation(() => undefined);
+
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient.mockImplementation(
+      async (): Promise<ifm.TypedResponse<IGraalPyManifestRelease[]>> => {
+        const result = JSON.stringify(manifestData);
+        return {
+          statusCode: 200,
+          headers: {},
+          result: JSON.parse(result) as IGraalPyManifestRelease[]
+        };
+      }
+    );
+
+    spyExec = exec.exec as jest.Mock;
+    spyExec.mockImplementation(() => undefined);
+
+    spySymlinkSync = jest.spyOn(fs, 'symlinkSync');
+    spySymlinkSync.mockImplementation(() => undefined);
+
+    spyExistsSync = jest.spyOn(fs, 'existsSync');
+    spyExistsSync.mockImplementation(() => false);
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('throw if release is not found', async () => {
+    await expect(
+      installer.installGraalPy('7.3.3', architecture, false, undefined)
+    ).rejects.toThrow(
+      `GraalPy version 7.3.3 with arch ${architecture} not found`
+    );
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).not.toHaveBeenCalled();
+    expect(spyExec).not.toHaveBeenCalled();
+  });
+
+  it('found and install GraalPy', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '21.3.0', architecture)
+    );
+
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+
+    await expect(
+      installer.installGraalPy('21.x', architecture, false, undefined)
+    ).resolves.toEqual({
+      installDir: path.join(toolDir, 'GraalPy', '21.3.0', architecture),
+      resolvedGraalPyVersion: '21.3.0'
+    });
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).toHaveBeenCalled();
+    expect(spyCacheDir).toHaveBeenCalled();
+    expect(spyExec).toHaveBeenCalled();
+  });
+
+  it('found and install GraalPy, pre-release fallback', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'GraalPy', '24.1.0', architecture)
+    );
+
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+
+    await expect(
+      installer.installGraalPy('24.1.x', architecture, false, undefined)
+    ).rejects.toThrow();
+    await expect(
+      installer.installGraalPy('24.1.x', architecture, true, undefined)
+    ).resolves.toEqual({
+      installDir: path.join(toolDir, 'GraalPy', '24.1.0', architecture),
+      resolvedGraalPyVersion: '24.1.0-ea.9'
+    });
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).toHaveBeenCalled();
+    expect(spyCacheDir).toHaveBeenCalled();
+    expect(spyExec).toHaveBeenCalled();
+  });
+});

__tests__/install-pypy.test.ts

@@ -0,0 +1,412 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+import {fileURLToPath} from 'url';
+import fs from 'fs';
+import * as path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Mock @actions modules
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  find: jest.fn(),
+  findAllVersions: jest.fn(),
+  downloadTool: jest.fn(),
+  extractZip: jest.fn(),
+  extractTar: jest.fn(),
+  extract7z: jest.fn(),
+  extractXar: jest.fn(),
+  cacheDir: jest.fn(),
+  cacheFile: jest.fn(),
+  getManifestFromRepo: jest.fn(),
+  findFromManifest: jest.fn(),
+  evaluateVersions: jest.fn()
+}));
+
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const core = await import('@actions/core');
+const tc = await import('@actions/tool-cache');
+const exec = await import('@actions/exec');
+
+// Non-mocked imports
+import {HttpClient} from '@actions/http-client';
+import type * as ifm from '@actions/http-client/lib/interfaces';
+
+const installer = await import('../src/install-pypy.js');
+const utils = await import('../src/utils.js');
+
+import type {IPyPyManifestRelease, IPyPyManifestAsset} from '../src/utils.js';
+import manifestData from './data/pypy.json' with {type: 'json'};
+
+const IS_WINDOWS = utils.IS_WINDOWS;
+
+let architecture: string;
+if (IS_WINDOWS) {
+  architecture = 'x86';
+} else {
+  architecture = 'x64';
+}
+
+const toolDir = path.join(__dirname, 'runner', 'tools');
+const tempDir = path.join(__dirname, 'runner', 'temp');
+
+describe('pypyVersionToSemantic', () => {
+  it.each([
+    ['7.3.3rc1', '7.3.3-rc.1'],
+    ['7.3.3', '7.3.3'],
+    ['7.3.x', '7.3.x'],
+    ['7.x', '7.x'],
+    ['nightly', 'nightly']
+  ])('%s -> %s', (input, expected) => {
+    expect(installer.pypyVersionToSemantic(input)).toEqual(expected);
+  });
+});
+
+describe('findRelease', () => {
+  const result = JSON.stringify(manifestData);
+  const releases = JSON.parse(result) as IPyPyManifestRelease[];
+  const extension = IS_WINDOWS ? '.zip' : '.tar.bz2';
+  const extensionName = IS_WINDOWS
+    ? `${process.platform}${extension}`
+    : `${process.platform}64${extension}`;
+  const files: IPyPyManifestAsset = {
+    filename: `pypy3.6-v7.3.3-${extensionName}`,
+    arch: architecture,
+    platform: process.platform,
+    download_url: `https://test.download.python.org/pypy/pypy3.6-v7.3.3-${extensionName}`
+  };
+  const filesRC1: IPyPyManifestAsset = {
+    filename: `pypy3.6-v7.4.0rc1-${extensionName}`,
+    arch: architecture,
+    platform: process.platform,
+    download_url: `https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-${extensionName}`
+  };
+
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+
+  beforeEach(() => {
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+  });
+
+  it("Python version is found, but PyPy version doesn't match", () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = '7.3.7';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual(null);
+  });
+
+  it('Python version is found and PyPy version matches', () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = '7.3.3';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual({
+      foundAsset: files,
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: pypyVersion
+    });
+  });
+
+  it('Python version is found in toolcache and PyPy version matches semver', () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = '7.x';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual({
+      foundAsset: files,
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.3.3'
+    });
+  });
+
+  it('Python and preview version of PyPy are found', () => {
+    const pythonVersion = '3.7';
+    const pypyVersion = installer.pypyVersionToSemantic('7.3.3rc2');
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual({
+      foundAsset: {
+        filename: `test${extension}`,
+        arch: architecture,
+        platform: process.platform,
+        download_url: `test${extension}`
+      },
+      resolvedPythonVersion: '3.7.7',
+      resolvedPyPyVersion: '7.3.3rc2'
+    });
+  });
+
+  it('Python version with latest PyPy is found', () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = 'x';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual({
+      foundAsset: files,
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.3.3'
+    });
+  });
+
+  it('Python version and PyPy version matches semver (pre-release)', () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = '7.4.x';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toBeNull();
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        true
+      )
+    ).toEqual({
+      foundAsset: filesRC1,
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.4.0rc1'
+    });
+  });
+
+  it('Nightly release is found', () => {
+    const pythonVersion = '3.6';
+    const pypyVersion = 'nightly';
+    const filename = IS_WINDOWS ? 'filename.zip' : 'filename.tar.bz2';
+    expect(
+      installer.findRelease(
+        releases,
+        pythonVersion,
+        pypyVersion,
+        architecture,
+        false
+      )
+    ).toEqual({
+      foundAsset: {
+        filename: filename,
+        arch: architecture,
+        platform: process.platform,
+        download_url: `http://nightlyBuilds.org/${filename}`
+      },
+      resolvedPythonVersion: '3.6',
+      resolvedPyPyVersion: pypyVersion
+    });
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+});
+
+describe('installPyPy', () => {
+  let tcFind: jest.Mock;
+  let infoSpy: jest.Mock;
+  let warningSpy: jest.Mock;
+  let debugSpy: jest.Mock;
+  let spyExtractZip: jest.Mock;
+  let spyExtractTar: jest.Mock;
+  let spyFsReadDir: jest.SpiedFunction<typeof fs.readdirSync>;
+  let spyFsWriteFile: jest.SpiedFunction<typeof fs.writeFileSync>;
+  let spyHttpClient: jest.SpiedFunction<typeof HttpClient.prototype.getJson>;
+  let spyExistsSync: jest.SpiedFunction<typeof fs.existsSync>;
+  let spyExec: jest.Mock;
+  let spySymlinkSync: jest.SpiedFunction<typeof fs.symlinkSync>;
+  let spyDownloadTool: jest.Mock;
+  let spyCacheDir: jest.Mock;
+  let spyChmodSync: jest.SpiedFunction<typeof fs.chmodSync>;
+
+  beforeEach(() => {
+    tcFind = tc.find as jest.Mock;
+    tcFind.mockImplementation(() => path.join('PyPy', '3.6.12', architecture));
+
+    spyDownloadTool = tc.downloadTool as jest.Mock;
+    spyDownloadTool.mockImplementation(() => path.join(tempDir, 'PyPy'));
+
+    spyExtractZip = tc.extractZip as jest.Mock;
+    spyExtractZip.mockImplementation(() => tempDir);
+
+    spyExtractTar = tc.extractTar as jest.Mock;
+    spyExtractTar.mockImplementation(() => tempDir);
+
+    infoSpy = core.info as jest.Mock;
+    infoSpy.mockImplementation(() => {});
+
+    warningSpy = core.warning as jest.Mock;
+    warningSpy.mockImplementation(() => null);
+
+    debugSpy = core.debug as jest.Mock;
+    debugSpy.mockImplementation(() => null);
+
+    spyFsReadDir = jest.spyOn(fs, 'readdirSync');
+    spyFsReadDir.mockImplementation(() => ['PyPyTest'] as any);
+
+    spyFsWriteFile = jest.spyOn(fs, 'writeFileSync');
+    spyFsWriteFile.mockImplementation(() => undefined);
+
+    spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
+    spyHttpClient.mockImplementation(
+      async (): Promise<ifm.TypedResponse<IPyPyManifestRelease[]>> => {
+        const result = JSON.stringify(manifestData);
+        return {
+          statusCode: 200,
+          headers: {},
+          result: JSON.parse(result) as IPyPyManifestRelease[]
+        };
+      }
+    );
+
+    spyExec = exec.exec as jest.Mock;
+    spyExec.mockImplementation(() => undefined);
+
+    spySymlinkSync = jest.spyOn(fs, 'symlinkSync');
+    spySymlinkSync.mockImplementation(() => undefined);
+
+    spyExistsSync = jest.spyOn(fs, 'existsSync');
+    spyExistsSync.mockImplementation(() => false);
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('throw if release is not found', async () => {
+    await expect(
+      installer.installPyPy('7.3.3', '3.6.17', architecture, false, undefined)
+    ).rejects.toThrow(
+      `PyPy version 3.6.17 (7.3.3) with arch ${architecture} not found`
+    );
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).not.toHaveBeenCalled();
+    expect(spyExec).not.toHaveBeenCalled();
+  });
+
+  it('found and install PyPy', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.6.12', architecture)
+    );
+
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+
+    await expect(
+      installer.installPyPy('7.x', '3.6.12', architecture, false, undefined)
+    ).resolves.toEqual({
+      installDir: path.join(toolDir, 'PyPy', '3.6.12', architecture),
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.3.3'
+    });
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).toHaveBeenCalled();
+    expect(spyExistsSync).toHaveBeenCalled();
+    expect(spyCacheDir).toHaveBeenCalled();
+    expect(spyExec).toHaveBeenCalled();
+  });
+
+  it('found and install PyPy, pre-release fallback', async () => {
+    spyCacheDir = tc.cacheDir as jest.Mock;
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.6.12', architecture)
+    );
+
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+
+    await expect(
+      installer.installPyPy('7.4.x', '3.6.12', architecture, false, undefined)
+    ).rejects.toThrow();
+    await expect(
+      installer.installPyPy('7.4.x', '3.6.12', architecture, true, undefined)
+    ).resolves.toEqual({
+      installDir: path.join(toolDir, 'PyPy', '3.6.12', architecture),
+      resolvedPythonVersion: '3.6.12',
+      resolvedPyPyVersion: '7.4.0rc1'
+    });
+
+    expect(spyHttpClient).toHaveBeenCalled();
+    expect(spyDownloadTool).toHaveBeenCalled();
+    expect(spyExistsSync).toHaveBeenCalled();
+    expect(spyCacheDir).toHaveBeenCalled();
+    expect(spyExec).toHaveBeenCalled();
+  });
+});

__tests__/install-python.test.ts

@@ -0,0 +1,207 @@
+import {jest, describe, it, expect, beforeEach, afterEach} from '@jest/globals';
+
+class MockHttpClientError extends Error {
+  statusCode: number;
+  constructor(message: string, statusCode: number) {
+    super(message);
+    this.name = 'HttpClientError';
+    this.statusCode = statusCode;
+  }
+}
+
+// Mock @actions/http-client
+jest.unstable_mockModule('@actions/http-client', () => ({
+  HttpClient: jest.fn().mockImplementation(() => ({
+    getJson: jest.fn()
+  })),
+  HttpClientError: MockHttpClientError,
+  HttpCodes: {
+    OK: 200,
+    NotFound: 404,
+    InternalServerError: 500
+  }
+}));
+
+// Mock @actions/cache (needed transitively by utils.ts)
+jest.unstable_mockModule('@actions/cache', () => ({
+  saveCache: jest.fn(),
+  restoreCache: jest.fn(),
+  isFeatureAvailable: jest.fn()
+}));
+
+// Mock @actions/tool-cache
+jest.unstable_mockModule('@actions/tool-cache', () => ({
+  getManifestFromRepo: jest.fn()
+}));
+
+// Mock @actions/core (needed by install-python.ts)
+jest.unstable_mockModule('@actions/core', () => ({
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  setFailed: jest.fn(),
+  setOutput: jest.fn(),
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  getMultilineInput: jest.fn(),
+  addPath: jest.fn(),
+  exportVariable: jest.fn(),
+  saveState: jest.fn(),
+  getState: jest.fn(),
+  setSecret: jest.fn(),
+  isDebug: jest.fn(() => false),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  group: jest.fn((_name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}));
+
+// Mock @actions/exec (needed by install-python.ts)
+jest.unstable_mockModule('@actions/exec', () => ({
+  exec: jest.fn(),
+  getExecOutput: jest.fn()
+}));
+
+// Dynamic imports after mocking
+const httpm = await import('@actions/http-client');
+const tc = await import('@actions/tool-cache');
+const {getManifest, getManifestFromRepo, getManifestFromURL} =
+  await import('../src/install-python.js');
+const mockManifest = [
+  {
+    version: '1.0.0',
+    stable: true,
+    files: [
+      {
+        filename: 'tool-v1.0.0-linux-x64.tar.gz',
+        platform: 'linux',
+        arch: 'x64',
+        download_url: 'https://example.com/tool-v1.0.0-linux-x64.tar.gz'
+      }
+    ]
+  }
+];
+
+describe('getManifest', () => {
+  beforeEach(() => {
+    jest.resetAllMocks();
+  });
+
+  afterEach(() => {
+    jest.useRealTimers();
+  });
+
+  it('should return manifest from repo', async () => {
+    (tc.getManifestFromRepo as jest.Mock<any>).mockResolvedValue(mockManifest);
+    const manifest = await getManifest();
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should return manifest from URL if repo fetch fails', async () => {
+    jest.useFakeTimers();
+    (tc.getManifestFromRepo as jest.Mock<any>).mockRejectedValue(
+      new Error('Fetch failed')
+    );
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: mockManifest}))
+    }));
+    const promise = getManifest();
+    await jest.runAllTimersAsync();
+    const manifest = await promise;
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should fall back to URL if repo returns a truncated/empty manifest', async () => {
+    jest.useFakeTimers();
+    (tc.getManifestFromRepo as jest.Mock<any>).mockResolvedValue([]);
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: mockManifest}))
+    }));
+    const promise = getManifest();
+    await jest.runAllTimersAsync();
+    const manifest = await promise;
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should retry on a transient invalid manifest and then succeed', async () => {
+    jest.useFakeTimers();
+    (tc.getManifestFromRepo as jest.Mock<any>)
+      .mockResolvedValueOnce([])
+      .mockResolvedValueOnce(mockManifest);
+    const promise = getManifest();
+    await jest.runAllTimersAsync();
+    const manifest = await promise;
+    expect(manifest).toEqual(mockManifest);
+    expect(tc.getManifestFromRepo as jest.Mock<any>).toHaveBeenCalledTimes(2);
+  });
+
+  it('should fail loudly when the manifest is truncated/empty on every source', async () => {
+    jest.useFakeTimers();
+    (tc.getManifestFromRepo as jest.Mock<any>).mockResolvedValue([]);
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: []}))
+    }));
+    const promise = getManifest();
+    // Prevent unhandled rejection before timers advance.
+    const catchPromise = promise.catch(() => {});
+    await jest.runAllTimersAsync();
+    await catchPromise;
+    await expect(promise).rejects.toThrow(
+      'Failed to fetch the Python versions manifest'
+    );
+  });
+
+  it('should not retry the API on a rate-limit error and fall back to URL immediately', async () => {
+    const rateLimitError = Object.assign(new Error('API rate limit exceeded'), {
+      httpStatusCode: 403
+    });
+    (tc.getManifestFromRepo as jest.Mock<any>).mockRejectedValue(
+      rateLimitError
+    );
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: mockManifest}))
+    }));
+    const manifest = await getManifest();
+    expect(manifest).toEqual(mockManifest);
+    expect(tc.getManifestFromRepo as jest.Mock<any>).toHaveBeenCalledTimes(1);
+  });
+});
+
+describe('getManifestFromRepo', () => {
+  beforeEach(() => {
+    jest.resetAllMocks();
+  });
+
+  it('should return manifest from repo', async () => {
+    (tc.getManifestFromRepo as jest.Mock<any>).mockResolvedValue(mockManifest);
+    const manifest = await getManifestFromRepo();
+    expect(manifest).toEqual(mockManifest);
+  });
+});
+
+describe('getManifestFromURL', () => {
+  beforeEach(() => {
+    jest.resetAllMocks();
+  });
+
+  it('should return manifest from URL', async () => {
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: mockManifest}))
+    }));
+    const manifest = await getManifestFromURL();
+    expect(manifest).toEqual(mockManifest);
+  });
+
+  it('should throw error if unable to get manifest from URL', async () => {
+    (httpm.HttpClient as jest.Mock<any>).mockImplementation(() => ({
+      getJson: jest.fn(async () => ({result: null}))
+    }));
+    await expect(getManifestFromURL()).rejects.toThrow(
+      'Unable to get manifest from'
+    );
+  });
+});