testing

Test coverage improves by writing unit tests that exercise happy paths and edge cases using pytest. This Skill provides best practices for structuring tests with fixtures, naming conventions, and fast isolated tests under 100ms to systematically expand coverage as your codebase grows.

Structure pytest tests using naming conventions, pytest fixtures for isolation, and parametrization to reduce duplication. This Skill covers fixture-based test design patterns that separate setup from test logic, making tests maintainable and reliable.

Set up pytest with a test execution script like run_tests.sh, organize tests by naming convention, use fixtures for repeatable setup, and keep unit tests under 100ms. This Skill provides templates and scripts to enforce this pytest-based workflow from the start.

Yes, pytest fixtures enable test isolation by managing setup and teardown, reducing test interdependencies. This Skill teaches refactoring test code to use fixture-based isolation, improving maintainability and making tests easier to modify over time.

Edge case coverage combined with fast unit tests prevents regressions. This Skill guides identifying happy paths and edge cases, using parametrization to test multiple scenarios efficiently, and reviewing test quality to maintain reliability as code evolves.