Added automatic unit testing.

.gitea/workflow/run-unit-tests.yml

@@ -0,0 +1,33 @@
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.12'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
+        run: |
+          ./tests.py
+
+      # AI: generated... check validity
+      # - name: Upload test results
+      #   if: always()
+      #   uses: actions/upload-artifact@v2
+      #   with:
+      #     name: test-results
+      #     path: tests/test_results.xml