pytest-coverage

$npx mdskill add github/awesome-copilot/pytest-coverage

Run pytest tests with coverage analysis to identify and fix uncovered code lines, aiming for 100% coverage.

  • Helps developers ensure all code lines are tested by pinpointing gaps in test coverage.
  • Integrates with pytest and coverage tools to generate annotated reports for source files.
  • Recommends adding tests based on lines marked with exclamation marks in coverage reports.
  • Presents results through annotated files in a directory, highlighting uncovered lines for review.
SKILL.md
.github/skills/pytest-coverageView on GitHub ↗
---
name: pytest-coverage
description: '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.
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