TDD Guide

The agent guides red-green-refactor TDD workflows, generates framework-specific test stubs from requirements, parses coverage reports to identify prioritized gaps, and calculates test quality metrics including smell detection and assertion density. Supports Jest, Pytest, JUnit, Vitest, and Mocha.

Core Capabilities

• Red-green-refactor guidance — phase validation (RED/GREEN/REFACTOR), cycle tracking, refactoring suggestions
• Test generation — produce test cases and framework-specific stubs from user stories, acceptance criteria, and API specs
• Coverage gap analysis — parse LCOV/JSON/XML reports, identify files below threshold, prioritize P0/P1/P2
• Test quality metrics — cyclomatic/cognitive complexity, assertion density, isolation, naming, and test smell detection
• Multi-framework support — convert tests and generate fixtures/mocks across Jest, Vitest, Pytest, JUnit, TestNG, Mocha, Jasmine

When to Use

• Writing a failing test first for a new feature (test-driven development)
• Analyzing coverage reports to find and prioritize gaps
• Generating test stubs from requirements or API specs
• Converting tests between frameworks or scaffolding fixtures/mocks
• Assessing test quality and detecting smells before merge