name: Test

# **What it does**: Runs our tests.
# **Why we have it**: We want our tests to pass before merging code.
# **Who does it impact**: Docs engineering, open-source engineering contributors.

on:
  workflow_dispatch:
  merge_group:
  pull_request:

permissions:
  contents: read
  pull-requests: read

# This allows a subsequently queued workflow run to interrupt previous runs
concurrency:
  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
  cancel-in-progress: true

env:
  # Setting this will activate the jest tests that depend on actually
  # sending real search queries to Elasticsearch
  ELASTICSEARCH_URL: http://localhost:9200/
  # Hopefully the name is clear enough. By enabling this, we're testing
  # the future code.
  ENABLE_SEARCH_RESULTS_PAGE: true

jobs:
  figureOutMatrix:
    if: github.repository == 'github/docs-internal' || github.repository == 'github/docs'
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.result }}
    steps:
      - uses: actions/github-script@98814c53be79b1d30f795b907e553d8679345975
        id: set-matrix
        with:
          script: |
            // We only want to run the 'translations' suite when we know
            // we're on the private docs-internal repo because only that
            // one has ability to clone the remote (private) translations
            // repos.
            return [
              { name: 'content', path: 'tests/content', },
              { name: 'automated-pipelines', path: 'src/automated-pipelines/tests', },
              { name: 'events', path: 'src/events/tests', },
              { name: 'graphql', path: 'src/graphql/tests', },
              { name: 'rest', path: 'src/rest/tests', },
              { name: 'webhooks', path: 'src/webhooks/tests', },
              { name: 'linting', path: 'tests/linting', },
              { name: 'meta', path: 'tests/meta', },
              { name: 'routing', path: 'tests/routing', },
              { name: 'rendering', path: 'tests/rendering', },
              { name: 'rendering-fixtures', path: 'tests/rendering-fixtures', },
              { name: 'search', path: 'src/search/tests', },
              { name: 'pageinfo', path: 'src/pageinfo/tests', },
              context.payload.repository.full_name === 'github/docs-internal' &&
                { name: 'translations', path: 'tests/translations', },
              { name: 'unit', path: 'tests/unit', },
            ].filter(Boolean)

  test:
    name: ${{ matrix.name }}
    needs: figureOutMatrix
    # Run on ubuntu-20.04-xl if the private repo or ubuntu-latest if the public repo
    # See pull # 17442 in the private repo for context
    runs-on: ${{ fromJSON('["ubuntu-latest", "ubuntu-20.04-xl"]')[github.repository == 'github/docs-internal'] }}
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJSON(needs.figureOutMatrix.outputs.matrix) }}
    steps:
      # Each of these ifs needs to be repeated at each step to make sure the required check still runs
      # Even if if doesn't do anything
      - name: Check out repo
        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8

      - uses: ./.github/actions/setup-elasticsearch
        if: ${{ matrix.name == 'search' || matrix.name == 'translations' }}

      - uses: ./.github/actions/node-npm-setup

      - uses: ./.github/actions/get-docs-early-access
        if: ${{ github.repository == 'github/docs-internal' }}
        with:
          token: ${{ secrets.DOCUBOT_REPO_PAT }}

      - name: Check the test fixture data (if applicable)
        if: ${{ matrix.name == 'rendering-fixtures' }}
        run: ./script/copy-fixture-data.js --check

      # This keeps our fixture content/data in check
      - name: Check the test fixture content (if applicable)
        if: ${{ matrix.name == 'rendering-fixtures' }}
        env:
          ROOT: tests/fixtures
        run: |
          # If either of these fail, it means our fixture content's internal
          # links can and should be updated.
          ./script/update-internal-links.js --dry-run --check --strict \
            tests/fixtures/content \
            --exclude tests/fixtures/content/get-started/foo/typo-autotitling.md \
            --exclude tests/fixtures/content/get-started/foo/anchor-autotitling.md
          ./script/update-internal-links.js --dry-run --check --strict \
            tests/fixtures/data

      - name: Clone all translations
        if: ${{ matrix.name == 'translations' }}
        uses: ./.github/actions/clone-translations
        with:
          token: ${{ secrets.DOCUBOT_REPO_PAT }}

      - name: Gather files changed
        if: ${{ matrix.name == 'linting' }}
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR: ${{ github.event.pull_request.number }}
          HEAD: ${{ github.event.pull_request.head.ref || github.event.merge_group.head_ref }}
        run: |
          # Find the file diff in the pull request or merge group
          # If its a pull request, use the faster call to the GitHub API
          # For push, workflow_dispatch, and merge_group, use git diff
          if [ -n "$PR" ]
          then
            echo __ running gh pr diff __
            DIFF=`gh pr diff $PR --name-only`
          elif [ -n "$HEAD" ]
          then
            echo __ running git fetch main __
            git fetch origin main --depth 1
            echo __ running git diff __
            DIFF=`git diff --name-only origin/main`
          else
            echo __ no head, empty diff __
            DIFF=''
          fi
          # So we can inspect the output
          echo __ DIFF found __
          echo $DIFF

          # So that becomes a string like `foo.js path/bar.md`
          # Must to do this because the list of files can be HUGE. Especially
          # in a repo-sync when there are lots of translation files involved.
          echo __ format, write to get_diff_files.txt __
          echo $DIFF | tr '\n' ' ' > get_diff_files.txt

      - name: Cache nextjs build
        uses: actions/cache@9b0c1fce7a93df8e3bb8926b0d6e9d89e92f20a7
        with:
          path: .next/cache
          key: ${{ runner.os }}-nextjs-${{ hashFiles('package*.json') }}

      - name: Run build script
        run: npm run build

      - name: Disk cache used by getRemoteJSON function in middleware
        uses: actions/cache@9b0c1fce7a93df8e3bb8926b0d6e9d89e92f20a7
        with:
          path: .remotejson-cache
          # Very liberal cache key. Note, for this to become populated
          # for other branches, you have to manually run this workflow
          # at least once using the "Run workflow" button.
          key: ${{ runner.os }}-remotejson

      - name: Index fixtures into the local Elasticsearch
        # For the sake of saving time, only run this step if the group
        # is one that will run tests against an Elasticsearch on localhost.
        if: ${{ matrix.name == 'search' || matrix.name == 'translations' }}
        run: npm run index-test-fixtures

      - name: Run tests
        env:
          DIFF_FILE: get_diff_files.txt
          CHANGELOG_CACHE_FILE_PATH: tests/fixtures/changelog-feed.json
          # By default, when `process.env.NODE_ENV === 'test'` it forces the
          # tests run only in English. The exception is the
          # `tests/translations/` suite which needs all languages to be set up.
          ENABLED_LANGUAGES: ${{ matrix.name == 'translations' && 'all' || '' }}
          ROOT: ${{ (matrix.name == 'rendering-fixtures' || matrix.name == 'pageinfo') && 'tests/fixtures' || ''}}
        run: npm test -- ${{ matrix.path }}/