name: unit-tests
permissions:
  contents: read

on:
  pull_request:
  merge_group:
  push:
    branches:
      - master

concurrency:
  # We only need to be running tests for the latest commit on each PR
  # (however, we fully test every commit on master, even as new ones land).
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}

jobs:
  run-tests:
    name: ${{ matrix.shard_name }}(py=${{ matrix.python-version }},dj=${{ matrix.django-version }},mongo=${{ matrix.mongo-version }})
    runs-on: ${{ matrix.os-version }}
    strategy:
      matrix:
        python-version:
          - "3.11"
          - "3.12"
        django-version:
          - "pinned"
        # When updating the shards, remember to make the same changes in
        # .github/workflows/unit-tests-gh-hosted.yml
        shard_name:
          - "lms-1"
          - "lms-2"
          - "lms-3"
          - "lms-4"
          - "lms-5"
          - "lms-6"
          - "openedx-1-with-lms"
          - "openedx-2-with-lms"
          - "openedx-1-with-cms"
          - "openedx-2-with-cms"
          - "cms-1"
          - "cms-2"
          - "common-with-lms"
          - "common-with-cms"
          - "xmodule-with-lms"
          - "xmodule-with-cms"
        mongo-version:
          - "7.0"
        os-version:
          - ubuntu-24.04

        # It's useful to run some subset of the tests on the older version of Ubuntu
        # so that we don't spend too many resources on this but can find major issues quickly
        # while we're in a situation where we support two versions.  This section may be commented
        # out when not in use to easily add/drop future support for any given major dependency.
        #
        # We're testing the older version of Ubuntu and running the xmodule tests since those rely on many
        # dependent complex libraries and will hopefully catch most issues quickly.
        include:
          - shard_name: "xmodule-with-cms"
            python-version: "3.11"
            django-version: "pinned"
            mongo-version: "7.0"
            os-version: "ubuntu-22.04"
          - shard_name: "xmodule-with-lms"
            python-version: "3.11"
            django-version: "pinned"
            mongo-version: "7.0"
            os-version: "ubuntu-22.04"

    steps:
      - name: checkout repo
        uses: actions/checkout@v6

      - name: install system requirements
        run: |
          sudo apt-get update && sudo apt-get install libmysqlclient-dev libxmlsec1-dev lynx

      # We pull this image a lot, and Dockerhub will rate limit us if we pull too often.
      # This is an attempt to cache the image for better performance and to work around that.
      # It will cache all pulled images, so if we add new images to this we'll need to update the key.
      - name: Cache Docker images
        uses: ScribeMD/docker-cache@0.5.0
        with:
          key: docker-${{ runner.os }}-mongo-${{ matrix.mongo-version }}

      - name: Start MongoDB
        uses: supercharge/mongodb-github-action@1.12.1
        with:
          mongodb-version: ${{ matrix.mongo-version }}

      - name: Setup Python
        uses: actions/setup-python@v6
        with:
          python-version: ${{ matrix.python-version }}

      - name: install requirements
        run: |
          make test-requirements
          if [[ "${{ matrix.django-version }}" != "pinned" ]]; then
            pip install "django~=${{ matrix.django-version }}.0"
            pip check # fail if this test-reqs/Django combination is broken
          fi

      - name: list installed package versions
        run: |
          pip freeze

      - name: set settings path
        shell: bash
        run: |
          echo "settings_path=$(python scripts/unit_test_shards_parser.py --shard-name=${{ matrix.shard_name }} --output settings )" >> $GITHUB_ENV

      - name: get unit tests for shard
        shell: bash
        run: |
          echo "unit_test_paths=$(python scripts/unit_test_shards_parser.py --shard-name=${{ matrix.shard_name }} )" >> $GITHUB_ENV

      - name: run tests
        shell: bash
        run: |
          python -Wd -m pytest -p no:randomly --ds=${{ env.settings_path }} ${{ env.unit_test_paths }} --cov=.

      - name: rename warnings json file
        if: success()
        shell: bash
        run: |
          cd test_root/log
          mv pytest_warnings.json pytest_warnings_${{ matrix.shard_name }}_${{ matrix.python-version }}_${{ matrix.django-version }}_${{ matrix.mongo-version }}_${{ matrix.os-version }}.json

      - name: save pytest warnings json file
        if: success()
        uses: actions/upload-artifact@v7
        with:
          name: pytest-warnings-json-${{ matrix.shard_name }}-${{ matrix.python-version }}-${{ matrix.django-version }}-${{ matrix.mongo-version }}-${{ matrix.os-version }}
          path: |
            test_root/log/pytest_warnings*.json
          overwrite: true

      - name: Renaming coverage data file
        run: |
          mv reports/.coverage reports/${{ matrix.shard_name }}_${{ matrix.python-version }}_${{ matrix.django-version }}_${{ matrix.mongo-version }}_${{ matrix.os-version }}.coverage

      - name: Upload coverage
        uses: actions/upload-artifact@v7
        with:
          name: coverage-${{ matrix.shard_name }}-${{ matrix.python-version }}-${{ matrix.django-version }}-${{ matrix.mongo-version }}-${{ matrix.os-version }}
          path: reports/${{ matrix.shard_name }}_${{ matrix.python-version }}_${{ matrix.django-version }}_${{ matrix.mongo-version }}_${{ matrix.os-version }}.coverage
          overwrite: true

  collect-and-verify:
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v6
      - name: Setup Python
        uses: actions/setup-python@v6
        with:
          python-version: 3.11

      - name: install system requirements
        run: |
          sudo apt-get update && sudo apt-get install libxmlsec1-dev

      - name: install requirements
        run: |
          make test-requirements

      - name: collect tests from all modules
        shell: bash
        run: |
          echo "root_cms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=cms.envs.test cms/ -q | head -n -2 | wc -l)" >> $GITHUB_ENV
          echo "root_lms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=lms.envs.test lms/ openedx/ common/djangoapps/ xmodule/ -q | head -n -2 | wc -l)" >> $GITHUB_ENV

      - name: get GHA unit test paths
        shell: bash
        run: |
          echo "cms_unit_test_paths=$(python scripts/gha_unit_tests_collector.py --cms-only)" >> $GITHUB_ENV
          echo "lms_unit_test_paths=$(python scripts/gha_unit_tests_collector.py --lms-only)" >> $GITHUB_ENV

      - name: collect tests from GHA unit test shards
        shell: bash
        run: |
          echo "cms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=cms.envs.test ${{ env.cms_unit_test_paths }} -q | head -n -2 | wc -l)" >> $GITHUB_ENV
          echo "lms_unit_tests_count=$(pytest --disable-warnings --collect-only --ds=lms.envs.test ${{ env.lms_unit_test_paths }} -q | head -n -2 | wc -l)" >> $GITHUB_ENV

      - name: add unit tests count
        shell: bash
        run: |
          echo "root_all_unit_tests_count=$((${{ env.root_cms_unit_tests_count }}+${{ env.root_lms_unit_tests_count }}))" >> $GITHUB_ENV
          echo "shards_all_unit_tests_count=$((${{ env.cms_unit_tests_count }}+${{ env.lms_unit_tests_count }}))" >> $GITHUB_ENV

      - name: print unit tests count
        shell: bash
        run: |
          echo CMS unit tests from root: ${{ env.root_cms_unit_tests_count }}
          echo LMS unit tests from root: ${{ env.root_lms_unit_tests_count }}
          echo CMS unit tests from shards: ${{ env.cms_unit_tests_count }}
          echo LMS unit tests from shards: ${{ env.lms_unit_tests_count }}
          echo All root unit tests count: ${{ env.root_all_unit_tests_count }}
          echo All shards unit tests count: ${{ env.shards_all_unit_tests_count }}

      - name: fail the check
        shell: bash
        if: ${{ env.root_all_unit_tests_count != env.shards_all_unit_tests_count }}
        run: |
          echo "::error title='Unit test modules in unit-test-shards.json (unit-tests.yml workflow) are outdated'::unit tests running in unit-tests
          workflow don't match the count for unit tests for entire openedx-platform suite, please update the unit-test-shards.json under .github/workflows
          to add any missing apps and match the count. for more details please take a look at scripts/gha-shards-readme.md"
          exit 1

  # This job aggregates test results. It's the required check for branch protection.
  # https://github.com/marketplace/actions/alls-green#why
  # https://github.com/orgs/community/discussions/33579
  success:
    name: Unit tests successful
    runs-on: ubuntu-24.04
    if: always()
    needs: [run-tests]
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        # uses: re-actors/alls-green@v1.2.1
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe
        with:
          jobs: ${{ toJSON(needs) }}

  compile-warnings-report:
    runs-on: ubuntu-24.04
    needs: [run-tests]
    steps:
      - uses: actions/checkout@v6
      - name: collect pytest warnings files
        uses: actions/download-artifact@v8
        with:
          pattern: pytest-warnings-json-*
          merge-multiple: true
          path: test_root/log

      - name: display structure of downloaded files
        run: ls -la test_root/log

      - name: compile warnings report
        run: |
          python openedx/core/process_warnings.py --dir-path test_root/log --html-path reports/pytest_warnings/warning_report_all.html

      - name: save warning report
        if: success()
        uses: actions/upload-artifact@v7
        with:
          name: pytest-warning-report-html
          path: |
            reports/pytest_warnings/warning_report_all.html
          overwrite: true

  merge-artifacts:
    runs-on: ubuntu-24.04
    needs: [compile-warnings-report]
    steps:
      - name: Merge Pytest Warnings JSON Artifacts
        uses: actions/upload-artifact/merge@v7
        with:
          name: pytest-warnings-json
          pattern: pytest-warnings-json-*
          delete-merged: true

      - name: Merge Coverage Artifacts
        uses: actions/upload-artifact/merge@v7
        with:
          name: coverage
          pattern: coverage-*
          delete-merged: true

  # Combine and upload coverage reports.
  coverage:
    if: (github.repository == 'edx/edx-platform-private') || (github.repository == 'openedx/openedx-platform' && (startsWith(github.base_ref, 'release') == false))
    runs-on: ubuntu-24.04
    needs: [run-tests]
    strategy:
      matrix:
        python-version:
          - 3.11
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6

      - name: Setup Python ${{ matrix.python-version }}
        uses: actions/setup-python@v6
        with:
          python-version: ${{ matrix.python-version }}

      - name: Download all artifacts
        uses: actions/download-artifact@v8
        with:
          pattern: coverage-*
          merge-multiple: true
          path: reports

      - name: Install Python dependencies
        run: |
          pip install -r requirements/edx/coverage.txt

      - name: Run coverage
        run: |
          coverage combine reports/*
          coverage report
          coverage xml
      - uses: codecov/codecov-action@v5