Add test coverage via CC

.github/workflows/coverage.yml

@@ -0,0 +1,38 @@
+name: Test Coverage
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.8
+
+      - name: Create venv
+        run: python -m venv .venv
+
+      - name: Install dependencies
+        run: make install
+
+      - name: Run tests
+        run: .venv/bin/coverage run -m unittest discover -s test
+
+      - name: Generate coverage report
+        run: |
+          .venv/bin/coverage xml
+
+      - name: Upload coverage to CodeClimate
+        env:
+          CC_TEST_REPORTER_ID: ${{ secrets.CC_TOKEN }}
+        run: |
+          curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+          chmod +x ./cc-test-reporter
+          ./cc-test-reporter format-coverage -t coverage.py coverage.xml
+          ./cc-test-reporter upload-coverage

.gitignore

@@ -5,3 +5,5 @@ dist
 docs/site
 __pycache__
 .mypy_cache
+.coverage
+coverage.xml

pyproject.toml

@@ -58,6 +58,7 @@ mike = "^1.1.2"
 typing-extensions = "^4.7.1"
 mypy = "^1.5.1"
 flask = "^3.0.0"
+coverage = "^7.3.2"
 
 [tool.ruff]
 target-version = "py38"
@@ -85,3 +86,19 @@ ignore = [
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+# Taken from https://coverage.readthedocs.io/en/latest/excluding.html
+[tool.coverage.report]
+omit = ["test/*"]
+exclude_also = [
+    "def __repr__",
+    "if self.debug:",
+    "if settings.DEBUG",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if 0:",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+    "class .*\\bProtocol\\):",
+    "@(abc\\.)?abstractmethod",
+    ]