Add CI job to run in pytest mode on each OS

This commit adds a new CI job that runs stestr's unit test suite in
pytest mode instead of using stestr's built in subunit runner (based on
stdlib unittest).

.github/workflows/main.yml

@@ -35,9 +35,42 @@ jobs:
  - name: Install and run tests macOS
  run: |
  tox -epy --notest
- .tox/py/bin/pip install gnureadline subunit2sql
+ .tox/py/bin/pip install gnureadline
  tox -epy
  if: runner.os == 'macOS'
+ pytest:
+ name: test-pytest-${{ matrix.os }}
+ runs-on: ${{ matrix.os }}
+ strategy:
+ matrix:
+ os: ["macOS-latest", "ubuntu-latest", "windows-latest"]
+ steps:
+ - uses: actions/checkout@v4
+ - name: Set up Python ${{ matrix.python-version }}
+ uses: actions/setup-python@v4
+ with:
+ python-version: ${{ matrix.python-version }}
+ - name: Pip cache
+ uses: actions/cache@v3
+ with:
+ path: ~/.cache/pip
+ key: ${{ runner.os }}-${{ matrix.python-version }}-pip-tests-${{ hashFiles('setup.py','requirements-dev.txt','constraints.txt') }}
+ restore-keys: |
+ ${{ runner.os }}-${{ matrix.python-version }}-pip-tests-
+ ${{ runner.os }}-${{ matrix.python-version }}-pip-
+ ${{ runner.os }}-${{ matrix.python-version }}
+ - name: Install Deps
+ run: python -m pip install -U 'tox<4' setuptools virtualenv wheel
+ - name: Install and Run Tests
+ run: tox -e py -- --pytest
+ if: runner.os != 'macOS'
+ - name: Install and run tests macOS
+ run: |
+ tox -epy --notest
+ .tox/py/bin/pip install gnureadline
+ tox -epy -- --pytest
+ if: runner.os == 'macOS'
+
  lint:
  name: pep8
  runs-on: ubuntu-latest