Add coverage check to GitLab CI

.gitlab-ci.yml

@@ -35,4 +35,13 @@ test:
   script:
     - source venv/bin/activate
     - echo "GRANT ALL on *.* to '${MYSQL_USER}';"| mysql -u root --password="${MYSQL_ROOT_PASSWORD}" -h mysql
-    - python manage.py test --settings AKPlanning.settings_ci
+    - pip install pytest-cov
+    - coverage run --source='.' manage.py test --settings AKPlanning.settings_ci
+    - coverage report
+    - coverage xml
+  coverage: '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'
+  artifacts:
+    reports:
+      coverage_report:
+        coverage_format: cobertura
+        path: coverage.xml