more testing stuff

.github/workflows/python-app.yml

@@ -35,4 +35,7 @@ jobs:
         flake8 party --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with pytest
       run: |
-        pytest
+        pytest -v
+    - name: Checking code coverage
+      run: |
+        pytest --cov