Merge pull request #152 from asherf/coveralls

Add e2e test coverage

Author: asherf

.travis.yml

@@ -38,8 +38,9 @@ script:
   - if [[ $TRAVIS_PYTHON_VERSION == "3.7" ]]; then black --check django_prometheus/; fi
   - coverage run --source=django_prometheus setup.py test
   - python setup.py sdist bdist_wheel
-  - pushd  django_prometheus/tests/end2end && PYTHONPATH=../../.. python manage.py test && popd
+  - pushd  django_prometheus/tests/end2end && PYTHONPATH=../../.. coverage run --source=django_prometheus manage.py test &&  popd
 after_success:
+  - coverage combine .coverage django_prometheus/tests/end2end/.coverage
   - coveralls
 before_deploy:
   - git checkout $TRAVIS_BRANCH