tester

Generate unit tests by analyzing your codebase structure and automatically creating test cases for public functions and module interactions. The Skill uses pytest to execute generated tests, include edge cases and error handling, and follow your project conventions while validating against pytest documentation.

Test generation works across both Python and JavaScript codebases. The Skill creates unit and integration tests appropriate to each language, executes them with language-specific frameworks like jest or pytest, and reports results in a unified format.

After running your test suite, the Skill reports coverage metrics against your targets and identifies gaps in tested code paths. Coverage reports reveal which functions and branches lack test execution, helping you prioritize test creation.

The Skill mocks external dependencies to isolate unit tests from live services and APIs. Mocking allows tests to run reliably without external calls while maintaining integration test capability for validated interactions.

Test creation is automated through code analysis that identifies public functions, module interactions, and edge cases. You provide the codebase; the Skill generates, executes, and reports tests without manual test writing.

The Skill is optimized for pytest and unittest in Python, and jest in JavaScript. For other frameworks, test generation may require adaptation, though core logic extraction and coverage reporting principles apply across testing tools.