test_python.yml

on:
  push:
    branches-ignore:
      - "gh-readonly-queue/**"
  pull_request:
  merge_group:
concurrency:
  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
  cancel-in-progress: true
name: Test Python
jobs:
  testpython:
    name: Test Python
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
      matrix:
        group: [1, 2, 3, 4, 5, 6]
        python: ["3.8", "3.11"]

    steps:
    - uses: actions/checkout@v4
    - uses: actions/setup-python@v5
      with:
        python-version: ${{ matrix.python }}
    - run: python -m pip install -U uv
    - run: |
        uv pip install --system mpich
        uv pip install --system "torch==2.3.0+cpu.cxx11.abi" -i https://download.pytorch.org/whl/
        export PYTORCH_ROOT=$(python -c 'import torch;print(torch.__path__[0])')
        uv pip install --system --only-binary=horovod -e .[cpu,test] horovod[tensorflow-cpu] mpi4py
      env:
        # Please note that uv has some issues with finding
        # existing TensorFlow package. Currently, it uses
        # TensorFlow in the build dependency, but if it
        # changes, setting `TENSORFLOW_ROOT`.
        TENSORFLOW_VERSION: ${{ matrix.python == '3.8' && '2.13.1' || '2.16.1' }}
        DP_ENABLE_PYTORCH: 1
        DP_BUILD_TESTING: 1
        UV_EXTRA_INDEX_URL: "https://pypi.anaconda.org/njzjz/simple https://pypi.anaconda.org/mpi4py/simple"
    - run: dp --version
    - name: Get durations from cache
      uses: actions/cache@v4
      with:
        path: .test_durations
        # the key must never match, even when restarting workflows, as that
        # will cause durations to get out of sync between groups, the
        # combined durations will be loaded if available
        key: test2-durations-split-${{ github.run_id }}-${{ github.run_number}}-${{ matrix.python }}-${{ matrix.group }}
        restore-keys: |
          test2-durations-combined-${{ matrix.python }}-${{ github.sha }}
          test2-durations-combined-${{ matrix.python }}
    - run: pytest --cov=deepmd source/tests --durations=0 --splits 6 --group ${{ matrix.group }} --store-durations --durations-path=.test_durations --splitting-algorithm least_duration
      env:
        NUM_WORKERS: 0
    - run: mv .test_durations .test_durations_${{ matrix.group }}
    - name: Upload partial durations
      uses: actions/upload-artifact@v4
      with:
        name: split-${{ matrix.python }}-${{ matrix.group }}
        path: .test_durations_${{ matrix.group }}
    - uses: codecov/codecov-action@v4
      env:
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
  update_durations:
    name: Combine and update integration test durations
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
      matrix:
        python: ["3.8", "3.11"]
    needs: testpython
    steps:
    - name: Get durations from cache
      uses: actions/cache@v4
      with:
        path: .test_durations
        # key won't match during the first run for the given commit, but
        # restore-key will if there's a previous stored durations file,
        # so cache will both be loaded and stored
        key: test2-durations-combined-${{ matrix.python }}-${{ github.sha }}
        restore-keys: test2-durations-combined-${{ matrix.python }}
    - name: Download artifacts
      uses: actions/download-artifact@v4
      with:
        pattern: split-${{ matrix.python }}-*
        merge-multiple: true
    - name: Combine test durations
      run: jq -s add .test_durations_* > .test_durations
  pass:
    name: Pass testing Python
    needs: [testpython, update_durations]
    runs-on: ubuntu-latest
    if: always()
    steps:
    - name: Decide whether the needed jobs succeeded or failed
      uses: re-actors/alls-green@release/v1
      with:
        jobs: ${{ toJSON(needs) }}