tests.yaml

name: Tests

on:
  push:
  pull_request:
  schedule:
    - cron: "0 6,18 * * *"

# When this workflow is queued, automatically cancel any previous running
# or pending jobs from the same branch
concurrency:
  group: tests-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test:
    # Do not run the schedule job on forks
    if: github.repository == 'dask/distributed' || github.event_name != 'schedule'
    runs-on: ${{ matrix.os }}
    timeout-minutes: 120

    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        environment: [mindeps, "3.9", "3.10", "3.11"]
        queuing: [queue]
        extra_packages: [null]
        # Cherry-pick test modules to split the overall runtime roughly in half
        partition: [ci1, not ci1]
        exclude:
          - os: macos-latest
            environment: "3.9"
          - os: macos-latest
            environment: "3.10"
          - os: macos-latest
            environment: mindeps
          - os: windows-latest
            environment: mindeps
        include:
          - os: ubuntu-latest
            environment: "3.9"
            queuing: no_queue
            partition: "ci1"
          - os: ubuntu-latest
            environment: "3.9"
            queuing: no_queue
            partition: "not ci1"
          # P2P rechunking - requires numpy and nothing else beyond mindeps (no pyarrow)
          - os: ubuntu-latest
            environment: mindeps
            extra_packages: [numpy]
            partition: "ci1"
          - os: ubuntu-latest
            environment: mindeps
            extra_packages: [numpy]
            partition: "not ci1"

        # Uncomment to stress-test the test suite for random failures.
        # Must also change `export TEST_ID` in first step below.
        # This will take a LONG time and delay all PRs across the whole github.com/dask!
        # To avoid hamstringing other people, change 'on: [push, pull_request]' above
        # to just 'on: [push]'; this way the stress test will run exclusively in your
        # branch (https://github.com/<your name>/distributed/actions).
        # run: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]

    env:
      CONDA_FILE: continuous_integration/environment-${{ matrix.environment }}.yaml

    steps:
      - name: Set $TEST_ID
        run: |
          export PARTITION_LABEL=$( echo "${{ matrix.partition }}" | sed "s/ //" )
          export TEST_ID="${{ matrix.os }}-${{ matrix.environment }}-${{ matrix.queuing || join(matrix.extra_packages, '_') }}-$PARTITION_LABEL"
          # Switch to this version for stress-test:
          # export TEST_ID="$TEST_ID-${{ matrix.run }}"
          echo "TEST_ID: $TEST_ID"
          echo "TEST_ID=$TEST_ID" >> $GITHUB_ENV
        shell: bash

      - name: Checkout source
        uses: actions/checkout@v3.5.3
        with:
          fetch-depth: 0

      - name: Setup Conda Environment
        uses: conda-incubator/setup-miniconda@v2.2.0
        with:
          miniforge-variant: Mambaforge
          miniforge-version: latest
          condarc-file: continuous_integration/condarc
          use-mamba: true
          activate-environment: dask-distributed

      - name: Show conda options
        shell: bash -l {0}
        run: conda config --show

      - name: Check if caching is enabled
        uses: xarray-contrib/ci-trigger@v1.2
        id: skip-caching
        with:
          keyword: "[skip-caching]"

      - name: Get Date
        if: |
          (
            steps.skip-caching.outputs.trigger-found != 'true'
            && !(github.event_name == 'pull_request' 
                 && contains(github.event.pull_request.labels.*.name, 'skip-caching'))
          )
        id: get-date
        run: echo "::set-output name=today::$(/bin/date -u '+%Y%m%d')"
        shell: bash

      - name: Cache Conda env
        if: steps.skip-caching.outputs.trigger-found != 'true'
        uses: actions/cache@v3
        with:
          path: ${{ env.CONDA }}/envs
          key: conda-${{ matrix.os }}-${{ steps.get-date.outputs.today }}-${{ hashFiles(env.CONDA_FILE) }}-${{ env.CACHE_NUMBER }}
        env:
          # Increase this value to reset cache if continuous_integration/environment-${{ matrix.environment }}.yaml has not changed
          CACHE_NUMBER: 1
        id: cache

      - name: Update environment
        run: mamba env update -n dask-distributed -f ${{ env.CONDA_FILE }}
        if: |
          (
            steps.skip-caching.outputs.trigger-found == 'true' 
            || (github.event_name == 'pull_request' 
                && contains(github.event.pull_request.labels.*.name, 'skip-caching'))
            || steps.cache.outputs.cache-hit != 'true'
          )

      - name: Install
        shell: bash -l {0}
        run: |
          python -m pip install --no-deps -e .

      - name: Extra Installs
        if: ${{ matrix.extra_packages }}
        shell: bash -l {0}
        run: mamba install -y ${{ join(matrix.extra_packages, ' ') }}

      - name: mamba list
        shell: bash -l {0}
        run: mamba list

      - name: mamba env export
        shell: bash -l {0}
        run: |
          echo -e "--\n--Conda Environment (re-create this with \`mamba env create --name <name> -f <output_file>\`)\n--"
          mamba env export | grep -E -v '^prefix:.*$'

      - name: Setup SSH
        shell: bash -l {0}
        # FIXME no SSH available on Windows
        # https://github.com/dask/distributed/issues/4509
        if: ${{ matrix.os != 'windows-latest' }}
        run: bash continuous_integration/scripts/setup_ssh.sh

      - name: Reconfigure pytest-timeout
        shell: bash -l {0}
        # No SIGALRM available on Windows
        if: ${{ matrix.os != 'windows-latest' }}
        run: sed -i.bak 's/timeout_method = "thread"/timeout_method = "signal"/' pyproject.toml

      - name: Disable IPv6
        shell: bash -l {0}
        # FIXME ipv6-related failures on Ubuntu github actions CI
        # https://github.com/dask/distributed/issues/4514
        if: ${{ matrix.os  == 'ubuntu-latest' }}
        run: echo "DISABLE_IPV6=1" >> $GITHUB_ENV

      - name: Set up dask env for job queuing
        shell: bash -l {0}
        if: ${{ matrix.queuing == 'no_queue' }}
        run: echo "DASK_DISTRIBUTED__SCHEDULER__WORKER_SATURATION=inf" >> $GITHUB_ENV

      - name: Print host info
        # host_info.py imports numpy, which isn't a direct dependency of distributed
        if: matrix.environment != 'mindeps'
        shell: bash -l {0}
        run: |
          python continuous_integration/scripts/host_info.py

      - name: Test
        id: run_tests
        shell: bash -l {0}
        env:
          PYTHONFAULTHANDLER: 1
          MINDEPS: ${{ matrix.environment == 'mindeps' }}
        run: |
          source continuous_integration/scripts/set_ulimit.sh
          set -o pipefail
          mkdir reports

          pytest distributed \
            -m "not avoid_ci and ${{ matrix.partition }}" --runslow \
            --leaks=fds,processes,threads \
            --junitxml reports/pytest.xml -o junit_suite_name=$TEST_ID \
            --cov=distributed --cov-report=xml \
          | tee reports/stdout

      - name: Generate junit XML report in case of pytest-timeout
        if: ${{ failure() }}
        shell: bash -l {0}
        run: |
          if [ ! -e reports/pytest.xml ]
          then
            # This should only ever happen on Windows.
            # On Linux and MacOS, pytest-timeout kills off the individual tests
            # See (reconfigure pytest-timeout above)
            python continuous_integration/scripts/parse_stdout.py < reports/stdout > reports/pytest.xml
          fi

      # - name: Debug with tmate on failure
      #   if: ${{ failure() }}
      #   uses: mxschmitt/action-tmate@v3

      # https://community.codecov.com/t/files-missing-from-report/3902/7
      # The coverage file being created records filenames at the distributed/ directory
      # as opposed to root. This is causing filename mismatches in Codecov.
      # This step edits `coverage.xml` in-file by adding `distributed` to all filenames.
      - name: Prepare coverage report
        if: ${{ matrix.os != 'windows-latest' }}
        shell: bash -l {0}
        run: sed -i'' -e 's/filename="/filename="distributed\//g' coverage.xml

      # Do not upload coverage reports for cron jobs
      - name: Coverage
        if: github.event_name != 'schedule'
        uses: codecov/codecov-action@v3
        with:
          name: ${{ env.TEST_ID }}
          # See https://community.codecov.com/t/upload-issues-unable-to-locate-build-via-github-actions-api/3954
          token: ${{ secrets.CODECOV_TOKEN }}

      - name: Upload test results
        # ensure this runs even if pytest fails
        if: >
          always() &&
          (steps.run_tests.outcome == 'success' || steps.run_tests.outcome == 'failure')
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.TEST_ID }}
          path: reports

      - name: Upload gen_cluster dumps for failed tests
        # ensure this runs even if pytest fails
        if: >
          always() &&
          (steps.run_tests.outcome == 'success' || steps.run_tests.outcome == 'failure')
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.TEST_ID }}_cluster_dumps
          path: test_cluster_dump
          if-no-files-found: ignore

  # Publish an artifact for the event; used by publish-test-results.yaml
  event_file:
    # Do not run the schedule job on forks
    if: github.repository == 'dask/distributed' || github.event_name != 'schedule'
    name: "Event File"
    runs-on: ubuntu-latest
    steps:
      - name: Upload
        uses: actions/upload-artifact@v3
        with:
          name: Event File
          path: ${{ github.event_path }}