feat: add test coverage

- Remove xdist configuration from pyproject.toml for Pycharm test runner compatibility
- Add xdist to `make test` environment
- Add code coverage
- Add codecov upload

Author: khvn26

.github/workflows/api-pull-request.yml

@@ -64,3 +64,11 @@ jobs:
         env:
           DOTENV_OVERRIDE_FILE: .env-ci
         run: make test
+
+      - name: Upload Coverage
+        uses: codecov/codecov-action@v3
+        env:
+          PYTHON: ${{ matrix.python-version }}
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          env_vars: PYTHON

api/.env-ci

@@ -1,2 +1,3 @@
 DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres
 ANALYTICS_DATABASE_URL=postgres://postgres:postgres@localhost:5432/analytics
+PYTEST_ADDOPTS=--cov-report xml -n auto

api/.env-local

@@ -1,2 +1,3 @@
 DATABASE_URL=postgresql://postgres:password@localhost:5432/flagsmith
 DJANGO_SETTINGS_MODULE=app.settings.local
+PYTEST_ADDOPTS=--cov-report html -n auto

api/.gitignore

@@ -3,4 +3,7 @@ static/
 
 # SaaS only modules
 saml/
-features/workflows/logic/
+features/workflows/logic/
+
+# Unit test coverage
+.coverage

api/pyproject.toml

@@ -34,4 +34,4 @@ known_third_party=['_pytest','apiclient','app_analytics','axes','chargebee','cor
 skip = ['migrations','.venv','.direnv']
 
 [tool.pytest.ini_options]
-addopts = ['--ds=app.settings.test', '-vvvv', '-p', 'no:warnings', '-n', 'auto']
+addopts = ['--ds=app.settings.test', '-vvvv', '-p', 'no:warnings', '--cov', '.']

api/requirements-dev.in

@@ -13,5 +13,6 @@ flake8
 pytest-mock
 pytest-lazy-fixture
 moto
+pytest-cov
 pytest-freezegun
 pytest-xdist

api/requirements-dev.txt

@@ -33,6 +33,8 @@ click==8.1.3
     # via
     #   black
     #   pip-tools
+coverage[toml]==7.2.7
+    # via pytest-cov
 cryptography==41.0.2
     # via moto
 dill==0.3.6
@@ -114,11 +116,14 @@ pyproject-hooks==1.0.0
 pytest==7.2.1
     # via
     #   -r requirements-dev.in
+    #   pytest-cov
     #   pytest-django
     #   pytest-freezegun
     #   pytest-lazy-fixture
     #   pytest-mock
     #   pytest-xdist
+pytest-cov==4.1.0
+    # via -r requirements-dev.in
 pytest-django==4.5.2
     # via -r requirements-dev.in
 pytest-freezegun==0.4.2