Add null test

       - run: echo "$(poetry env info --path)/bin" >> $GITHUB_PATH
       - uses: jakebailey/pyright-action@v1
 
-      # - name: Run tests
-      #   run: poetry run gmpg test
+      - name: Run tests
+        run: poetry run gmpg test
 
       - name: Run analysis
         run: poetry run gmpg analyze

+def test_app():
+    assert True