pytest-coverage

Run pytest with coverage reporting to identify and eliminate untested code lines. 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.