name: Unit Tests

# Download a platform's test artifact, run ctest, and upload the JUnit
# results for aggregation. Called once per arch from build_all.yml.
on:
  workflow_call:
    inputs:
      os:
        required: true
        type: string
      artifact:
        description: Test artifact uploaded by the build leg
        required: true
        type: string
      test-dir:
        description: Built tests dir; defaults to build/tests, override for arch-separated builds
        required: false
        type: string
        default: build/tests

jobs:
  unit_tests:
    # Static "Unit Tests"; the per-arch label is the caller's job name, so the
    # graph shows e.g. "Windows x64 / Unit Tests".
    name: Unit Tests
    runs-on: ${{ inputs.os }}
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          # tests/data is referenced by absolute path (TEST_DATA_DIR).
          sparse-checkout: |
            .github
            scripts
            tests
      - name: Apt-Install Dependencies
        if: runner.os == 'Linux' && !vars.SELF_HOSTED
        uses: ./.github/actions/apt-install-deps
      - name: Restore Test Artifact
        uses: actions/download-artifact@v8
        with:
          name: ${{ inputs.artifact }}
      - uses: lukka/get-cmake@latest
        with:
          cmakeVersion: "~4.3.0"  # use most recent 4.3.x version
          useLocalCache: true
          useCloudCache: true
      - name: Unpackage and Run Unit Tests
        timeout-minutes: 20
        shell: bash
        run: |
          tar -xvf build_tests.tar
          # Multi-config generators (Windows/macOS) need a config; Linux is single-config.
          scripts/run_unit_tests.sh "${{ inputs.test-dir }}" "${{ runner.os != 'Linux' && 'Release' || '' }}"
      - name: Upload Test Logs
        if: ${{ failure() }}
        uses: actions/upload-artifact@v7
        with:
          name: unit-test-logs-${{ inputs.artifact }}
          path: ${{ inputs.test-dir }}/**/*.log
      - name: Upload Test Results
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: test-results-${{ inputs.artifact }}
          path: ctest_results.xml
          retention-days: 5
          if-no-files-found: warn
      - name: Delete Test Artifact
        if: success()
        uses: geekyeggo/delete-artifact@v6
        with:
          name: ${{ inputs.artifact }}