test_impacted_targets.yaml

name: Pull Request
on: pull_request

permissions: read-all

jobs:
  tests_impacted_targets:
    runs-on: ubuntu-latest
    name: ${{ matrix.test-name }}
    strategy:
      fail-fast: false
      matrix:
        include:
          # 1. Test when some targets are modified
          - test-name: basic-modified
            target-branch: do_not_delete/basic-target
            setup-branch: do_not_delete/basic-setup-modified
            expected-targets-file: basic_modified.txt

          # 2. Test when some targets are modified and startup options are specified
          - test-name: basic-upload-startup
            target-branch: do_not_delete/basic-target
            setup-branch: do_not_delete/basic-setup-upload
            bazel-startup-options: --host_jvm_args=-Xmx12G,--block_for_lock,--client_debug
            expected-targets-file: basic_upload_startup.txt
            # The upload is expected to fail with exit code 7
            upload-targets: "true"

          # 3. Test when some targets are modified and impact-all-filters-path is specified
          - test-name: basic-upload-impacts-all
            target-branch: do_not_delete/basic-target
            setup-branch: do_not_delete/basic-setup-upload
            impact-all-filters-path: local-action/tests/impact_all_filters.yaml
            expected-targets-file: basic_upload_impacts_all.txt
            # The upload is expected to fail with exit code 7
            upload-targets: "true"

          # 4. Test when some targets are added
          - test-name: basic-added
            target-branch: do_not_delete/basic-target
            setup-branch: do_not_delete/basic-setup-added
            expected-targets-file: basic_added.txt

          # 5. Test when some targets are removed
          - test-name: basic-removed
            target-branch: do_not_delete/basic-target
            setup-branch: do_not_delete/basic-setup-removed
            expected-targets-file: basic_removed.txt

          # 6. Test when some targets are added but the target branch is out of date (this is where upload and test diffs vary)
          - test-name: outdated-added
            target-branch: do_not_delete/outdated-target
            setup-branch: do_not_delete/outdated-setup-add
            expected-targets-file: outdated_added.txt

          # 7. Test a stress test of targets
          - test-name: many-mixed
            target-branch: do_not_delete/outdated-target
            setup-branch: do_not_delete/mixed-setup-add
            expected-targets-file: many_mixed.txt

          # 8. Test a stress test of targets
          - test-name: many-filtered
            target-branch: do_not_delete/outdated-target
            setup-branch: do_not_delete/mixed-setup-add
            kind-filter: source file
            negative-scope-filter: .txt$
            expected-targets-file: many_filtered.txt

    steps:
      - name: Checkout ${{ matrix.setup-branch }}
        uses: actions/checkout@v3
        with:
          ref: ${{ matrix.setup-branch }}
          fetch-depth: 0

      # Check out this repo separately in order to use its action independent of the state of the test inputs
      - name: Checkout ${{ github.repository }}
        uses: actions/checkout@v3
        with:
          ref: ${{ github.head_ref }}
          path: local-action

      # We will override bazel for purposes of asserting that tests are run, but we still need to invoke it and have it in the PATH for computing targets
      - name: Setup Bazel
        # trunk-ignore(semgrep): Trust third-party `bazelbuild` GH Action
        uses: bazelbuild/setup-bazelisk@v2

      - name: Test impacted targets
        id: test
        uses: ./local-action/
        with:
          trunk-token: test-token
          target-branch: ${{ matrix.target-branch }}
          bazel-workspace-path: ${{ github.workspace }}/tests/simple_bazel_workspace
          verbose: "true"
          bazel-startup-options: ${{ matrix.bazel-startup-options }}
          bazel-path: ${{ github.workspace }}/local-action/tests/bazel_stub.sh
          impact-all-filters-path: ${{ matrix.impact-all-filters-path }}
          upload-targets: ${{ matrix.upload-targets }}
          test-targets: "true"
          test-kind-filter: ${{ matrix.kind-filter }}
          test-negative-kind-filter: ""
          test-negative-scope-filter: ${{ matrix.negative-scope-filter }}
        env:
          TEST_TARGETS_EXPECTED_FILE:
            ${{ github.workspace }}/local-action/tests/expected/${{ matrix.expected-targets-file }}
          API_URL: localhost
          PR_SETUP_BRANCH: ${{ matrix.setup-branch }}

      - name: Assert number targets
        shell: bash
        run: |
          expected_file="${{ github.workspace }}/local-action/tests/expected/${{ matrix.expected-targets-file }}"
          expected_targets=$(wc -l "${expected_file}")
          if [[ "${{ steps.test.outputs.detected_test_targets }}" -ne "${expected_targets}" ]]; then
            echo "Incorrect number of tests run, expected ${expected_targets}, got ${{ steps.test.outputs.detected_test_targets }}"
            exit 1
          fi
          echo "Tests identified successfully"