chore: add coverage report as comment

Author: justinbarclay

.github/workflows/python-tests.yml

@@ -27,4 +27,8 @@ jobs:
           pip install -r dev-requirements.txt
       - name: Test with pytest
         run: |
-          pytest
+          pytest --cov --cov-report=term-missing | tee pytest-coverage.out
+      - name: Comment on PR with coverage report
+        uses: marp-team/pytest-cov-comment@v1
+        with:
+          pytest_coverage_file: pytest-coverage.out

unix/dev-requirements.txt

@@ -64,4 +64,5 @@ wheel==0.38.4
 wrapt==1.14.1; python_version < '3.11'
 zipp==3.11.0; python_version < '3.10'
 pytest
+pytest-cov
 pytest-mock