[tool] feat(ci): add codecov (#194)

.github/workflows/coverage.yml

@@ -0,0 +1,36 @@
+name: Coverage
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test-and-print-coverage:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -e '.[dev]' coverage
+
+      - name: Run tests with coverage
+        run: python -m coverage run -m unittest
+
+      - name: Print coverage summary
+        run: python -m coverage report -m --fail-under=70
+
+

pyproject.toml

@@ -53,7 +53,8 @@ dev = [
     "types-pytz (>=2025.2.0.20250326,<2025.3.0.0)",
     "pre-commit (>=4.2.0,<4.3.0)",
     "types-python-dateutil (>=2.9.0,<2.10.0)",
-    "wheel (>=0.45.1,<0.46.0)"
+    "wheel (>=0.45.1,<0.46.0)",
+    "coverage>=7.13.5"
 ]
 doc = [
     "autoapi (>=2.0.1,<2.1.0)",