Unit Testing

This skill enforces test-driven development principles by guiding developers through TDD workflows. It provides comprehensive patterns for unit tests, integration tests, and E2E tests with examples using Jest, Vitest, and Playwright, along with mocking strategies and coverage requirements.

A comprehensive guide for Go testing that covers table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD (Test-Driven Development) methodology with idiomatic Go practices and includes examples for mocking, HTTP handler testing, and CI/CD integration.

This skill provides comprehensive Python testing patterns using pytest. It covers unit testing, fixtures for setup/teardown, mocking external dependencies, parameterized tests, async testing, property-based testing with Hypothesis, database testing, and CI/CD integration. The guide includes best practices for test organization, naming, and coverage reporting.