use pytest-split in GitHub Action (#224)

* use pytest-split in GitHub Action

* fix test_set_template breaking test_get_plotly_font_color_default by modifying global plotly template

* migrate from pytest-release.yml reusable workflow to separate pytest and pypi publish workflows

latter no longer being a reusable workflow so should now work with PyPI trusted publishing (see pypa/gh-action-pypi-publish/issues/166)

.github/workflows/release.yml

@@ -0,0 +1,33 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  tests:
+    uses: ./.github/workflows/test.yml
+
+  release:
+    runs-on: ubuntu-latest
+    needs: tests
+    if: needs.tests.result == 'success'
+    permissions:
+      id-token: write
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Build and upload dist
+        run: |
+          pip install build twine
+          python -m build
+          twine check dist/* --strict
+
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/test.yml

@@ -8,16 +8,22 @@ on:
   release:
     types: [published]
   workflow_dispatch:
+  workflow_call:
 
 jobs:
   tests:
     strategy:
       matrix:
         os: [ubuntu-latest] # windows-latest
-    uses: janosh/workflows/.github/workflows/pytest-release.yml@main
+        split: [1, 2, 3, 4]
+    uses: janosh/workflows/.github/workflows/pytest.yml@main
     with:
       os: ${{ matrix.os }}
       python-version: "3.10"
+      test-cmd: |
+        pytest --durations 20 --cov . \
+          --splits 4 --group ${{ matrix.split }} \
+          --splitting-algorithm least_duration
 
   find-scripts:
     runs-on: ubuntu-latest

pyproject.toml

@@ -45,6 +45,7 @@ test = [
     "lxml>=4.9",
     "pdfCropMargins>=2",
     "pytest-cov>=5",
+    "pytest-split>=0.9",
     "pytest>=8",
     "weasyprint>=60",
 ]