name: unit tests

on:
  workflow_dispatch:
  workflow_call:

concurrency:
  group: unit_tests-${{github.ref}}-${{github.event.pull_request.number || github.run_number}}
  cancel-in-progress: true

jobs:
  # Run unit tests with different configurations on linux
  ubuntu:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ['2.7', '3.6', '3.7', '3.8', '3.9', '3.10']
        concretizer: ['clingo']
        on_develop:
        - ${{ github.ref == 'refs/heads/develop' }}
        include:
        - python-version: 2.7
          concretizer: original
          on_develop: ${{ github.ref == 'refs/heads/develop' }}
        - python-version: '3.10'
          concretizer: original
          on_develop: ${{ github.ref == 'refs/heads/develop' }}
        exclude:
        - python-version: '3.7'
          concretizer: 'clingo'
          on_develop: false
        - python-version: '3.8'
          concretizer: 'clingo'
          on_develop: false
        - python-version: '3.9'
          concretizer: 'clingo'
          on_develop: false

    steps:
    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
      with:
        fetch-depth: 0
    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install System packages
      run: |
          sudo apt-get -y update
          # Needed for unit tests
          sudo apt-get -y install \
              coreutils cvs gfortran graphviz gnupg2 mercurial ninja-build \
              patchelf cmake bison libbison-dev kcov
    - name: Install Python packages
      run: |
          pip install --upgrade pip six setuptools pytest codecov[toml] pytest-cov pytest-xdist
          # ensure style checks are not skipped in unit tests for python >= 3.6
          # note that true/false (i.e., 1/0) are opposite in conditions in python and bash
          if python -c 'import sys; sys.exit(not sys.version_info >= (3, 6))'; then
              pip install --upgrade flake8 "isort>=4.3.5" "mypy>=0.900" "click==8.0.4" "black<=21.12b0"
          fi
    - name: Pin pathlib for Python 2.7
      if: ${{ matrix.python-version == 2.7 }}
      run: |
          pip install -U pathlib2==2.3.6
    - name: Setup git configuration
      run: |
          # Need this for the git tests to succeed.
          git --version
          . .github/workflows/setup_git.sh
    - name: Bootstrap clingo
      if: ${{ matrix.concretizer == 'clingo' }}
      env:
          SPACK_PYTHON: python
      run: |
          . share/spack/setup-env.sh
          spack bootstrap untrust spack-install
          spack -v solve zlib
    - name: Run unit tests
      env:
          SPACK_PYTHON: python
          SPACK_TEST_SOLVER: ${{ matrix.concretizer }}
          SPACK_TEST_PARALLEL: 2
          COVERAGE: true
          UNIT_TEST_COVERAGE: ${{ (matrix.concretizer == 'original' && matrix.python-version == '2.7') || (matrix.python-version == '3.10') }}
      run: |
          share/spack/qa/run-unit-tests
          coverage combine -a
          coverage xml
    - uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378
      with:
        flags: unittests,linux,${{ matrix.concretizer }}
  # Test shell integration
  shell:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
      with:
        fetch-depth: 0
    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
      with:
        python-version: '3.10'
    - name: Install System packages
      run: |
          sudo apt-get -y update
          # Needed for shell tests
          sudo apt-get install -y coreutils kcov csh zsh tcsh fish dash bash
    - name: Install Python packages
      run: |
          pip install --upgrade pip six setuptools pytest codecov coverage[toml]==6.2 pytest-xdist
    - name: Setup git configuration
      run: |
          # Need this for the git tests to succeed.
          git --version
          . .github/workflows/setup_git.sh
    - name: Run shell tests
      env:
          COVERAGE: true
      run: |
          share/spack/qa/run-shell-tests
    - uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378
      with:
        flags: shelltests,linux

  # Test RHEL8 UBI with platform Python. This job is run
  # only on PRs modifying core Spack
  rhel8-platform-python:
    runs-on: ubuntu-latest
    container: registry.access.redhat.com/ubi8/ubi
    steps:
    - name: Install dependencies
      run: |
          dnf install -y \
              bzip2 curl file gcc-c++ gcc gcc-gfortran git gnupg2 gzip \
              make patch tcl unzip which xz
    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
    - name: Setup repo and non-root user
      run: |
          git --version
          git fetch --unshallow
          . .github/workflows/setup_git.sh
          useradd spack-test
          chown -R spack-test .
    - name: Run unit tests
      shell: runuser -u spack-test -- bash {0}
      run: |
          source share/spack/setup-env.sh
          spack -d solve zlib
          spack unit-test -k 'not cvs and not svn and not hg' -x --verbose
  # Test for the clingo based solver (using clingo-cffi)
  clingo-cffi:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
      with:
        fetch-depth: 0
    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
      with:
        python-version: '3.10'
    - name: Install System packages
      run: |
          sudo apt-get -y update
          # Needed for unit tests
          sudo apt-get -y install \
              coreutils cvs gfortran graphviz gnupg2 mercurial ninja-build \
              patchelf kcov
    - name: Install Python packages
      run: |
          pip install --upgrade pip six setuptools pytest codecov coverage[toml] pytest-cov clingo pytest-xdist
    - name: Setup git configuration
      run: |
          # Need this for the git tests to succeed.
          git --version
          . .github/workflows/setup_git.sh
    - name: Run unit tests (full suite with coverage)
      env:
          COVERAGE: true
          SPACK_TEST_SOLVER: clingo
      run: |
          share/spack/qa/run-unit-tests
          coverage combine -a
          coverage xml
    - uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378 # @v2.1.0
      with:
        flags: unittests,linux,clingo
  # Run unit tests on MacOS
  macos:
    runs-on: macos-latest
    strategy:
      matrix:
        python-version: [3.8]
    steps:
    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # @v2
      with:
        fetch-depth: 0
    - uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 # @v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install Python packages
      run: |
          pip install --upgrade pip six setuptools
          pip install --upgrade pytest codecov coverage[toml] pytest-xdist pytest-cov
    - name: Setup Homebrew packages
      run: |
        brew install dash fish gcc gnupg2 kcov
    - name: Run unit tests
      env:
        SPACK_TEST_SOLVER: clingo
        SPACK_TEST_PARALLEL: 4
      run: |
        git --version
        . .github/workflows/setup_git.sh
        . share/spack/setup-env.sh
        $(which spack) bootstrap untrust spack-install
        $(which spack) solve zlib
        common_args=(--dist loadfile --tx '4*popen//python=./bin/spack-tmpconfig python -u ./bin/spack python' -x)
        $(which spack) unit-test --cov --cov-config=pyproject.toml "${common_args[@]}"
        coverage combine -a
        coverage xml
        # Delete the symlink going from ./lib/spack/docs/_spack_root back to
        # the initial directory, since it causes ELOOP errors with codecov/actions@2
        rm lib/spack/docs/_spack_root
    - uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378
      with:
        flags: unittests,macos