Add a GitHub workflow for testing using the pytest framework

Author: voltjia

.github/workflows/pytest.yml

@@ -0,0 +1,18 @@
+name: pytest
+on: [push, pull_request]
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .[all]
+      - name: Test with pytest
+        run: |
+          pytest --doctest-modules --junitxml=junit/test-results.xml --cov=ninetoothed --cov-report=xml --cov-report=html