Pytest Coverage
Run pytest tests with coverage, discover lines missing coverage, and increase coverage to 100%.
by github · MIT
The skill
Run pytest tests with coverage, discover lines missing coverage, and increase coverage to 100%.
The goal is for the tests to cover all lines of code.
Generate a coverage report with:
pytest --cov --cov-report=annotate:cov_annotate
If you are checking for coverage of a specific module, you can specify it like this:
pytest --cov=your_module_name --cov-report=annotate:cov_annotate
You can also specify specific tests to run, for example:
pytest tests/test_your_module.py --cov=your_module_name --cov-report=annotate:cov_annotate
Open the cov_annotate directory to view the annotated source code. There will be one file per source file. If a file has 100% source coverage, it means all lines are covered by tests, so you do not need to open the file.
For each file that has less than 100% test coverage, find the matching file in cov_annotate and review the file.
If a line starts with a ! (exclamation mark), it means that the line is not covered by tests. Add tests to cover the missing lines.
Keep running the tests and improving coverage until all lines are covered.
Use this skill
Connect your agent to the Skill Store MCP server and ask for it by ref: github/pytest-coverage-10182185141.
Details
- Publisher
- github
- Category
- Software Development › Testing & QA
- License
- MIT
- Updated
- 2026-10-16
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