Parallelize tests

Author: dolfinus

.github/workflows/test.yml

@@ -59,7 +59,7 @@ jobs:
           git version
           git tag -l --sort=-creatordate --merged
           mkdir reports/
-          coverage run -m pytest -m ${{ matrix.mark }}
+          coverage run -m pytest -n auto -m ${{ matrix.mark }}
 
       - name: Upload coverage results
         uses: actions/upload-artifact@v6

pyproject.toml

@@ -67,6 +67,7 @@ test = [
   "coverage>=7.2.7",
   "pytest>=7.4.4",
   "pytest-rerunfailures>=13.0",
+  "pytest-xdist>=3.5.0",
   # Some tests need to write TOML, but tomli and tomllib are read-only, and toml package is unmaintained
   "tomli-w>=1.0.0",
   "wheel>=0.42.0",