pytest▌

A comprehensive skill for mastering Python testing with pytest. This skill covers everything from basic test structure to advanced patterns including fixtures, parametrization, mocking, test organization, coverage analysis, and CI/CD integration.

Fast, scalable Python testing with fixtures, parametrization, and framework integration. \n \n Fixture system provides dependency injection and setup/teardown with function, class, module, and session scopes \n Parametrization enables data-driven tests; markers organize tests by category (unit, integration, slow, custom) \n Built-in support for FastAPI, Django, and Flask with async/await testing via pytest-asyncio \n Rich assertion introspection, mocking via pytest-mock, coverage reporting, and

Run pytest with coverage reporting to identify and eliminate untested code lines. \n \n Generates annotated source files in cov_annotate/ directory, with ! markers indicating uncovered lines \n Supports module-specific coverage checks via --cov=module_name and targeted test runs on specific test files \n Workflow: run coverage, review annotated files for uncovered lines, write tests to cover gaps, repeat until 100% coverage achieved \n