Introduce coverage

Author: d0rich

.github/workflows/test.yaml

@@ -20,5 +20,8 @@ jobs:
         - name: Install dependencies
           run: uv sync
 
-        - name: Run tests
-          run: uv run -m unittest discover tests
+        - name: Run tests with coverage
+          run: uv run -m coverage run -m unittest discover tests
+
+        - name: Display coverage report
+          run: uv run -m coverage report

.gitignore

@@ -10,3 +10,5 @@ wheels/
 
 # Virtual environments
 .venv
+
+.coverage

CONTRIBUTING.md

@@ -6,4 +6,16 @@ Tests support built-in UnitTest framework:
 
 ```bash
 python -m unittest discover tests
+```
+
+Running tests with coverage:
+
+```bash
+uv run -m coverage run -m unittest discover tests
+```
+
+Display coverage report:
+
+```bash
+uv run -m coverage report
 ```

pyproject.toml

@@ -7,3 +7,8 @@ requires-python = ">=3.9"
 dependencies = [
     "tqdm>=4.67.1",
 ]
+
+[dependency-groups]
+dev = [
+    "coverage>=7.9.1",
+]