Generates comprehensive failing tests to define expected behavior and edge cases during the TDD red phase.
This skill automates the critical first step of Test-Driven Development by creating structured, failing tests that establish a blueprint for new features. It helps developers identify constraints, happy paths, and edge cases upfront across multiple languages and frameworks, ensuring that implementation is guided by clear, verifiable requirements. By generating tests that fail for the right reasons, it prevents false positives and establishes a robust foundation for the subsequent green and refactor phases.
Características Principales
01Multi-language support for Jest, Vitest, pytest, Go, and RSpec
02Mock and fixture generation for isolated component testing
03Standardized Arrange-Act-Assert patterns and behavior-driven naming
045 GitHub stars
05Automated identification of edge cases, boundaries, and error states
06Verification steps to ensure tests fail due to missing logic, not setup errors
Casos de Uso
01Defining requirements for a new feature through behavior-first testing
02Standardizing test structures and patterns across a polyglot codebase
03Capturing complex edge cases before starting implementation logic
