Add pytest into github action.

.github/workflows/pre-commit.yml

@@ -1,4 +1,4 @@
-name: Pre-commit Hooks
+name: Pre-commit hooks
 
 on:
   - push

.github/workflows/pytest.yml

@@ -0,0 +1,27 @@
+name: Run pytest
+
+on:
+  - pull_request
+  - push
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: pip install '.[dev]'
+
+      - name: Run pytest
+        run: pytest --cov=parity_tensor --cov-branch --cov-report=xml
+
+      - uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}

.gitignore

@@ -3,3 +3,5 @@ env
 __pycache__
 parity_tensor/_version.py
 build
+.coverage
+coverage.xml

pyproject.toml

@@ -34,7 +34,10 @@ column_limit = 200
 
 [tool.pylint]
 max-line-length = 200
-ignore-paths = ["parity_tensor/_version.py"]
+ignore-paths = [
+  "parity_tensor/_version.py",
+  "tests/*",
+]
 
 [tool.mypy]
 disallow_untyped_calls = true

tests/import_test.py

@@ -0,0 +1,2 @@
+def test_import() -> None:
+    import parity_tensor