Create or update test files for TypeScript classes that implement interfaces. Use when user asks to "create tests", "update tests", "generate test file", "fix tests", "test MyClass", or mentions needing tests for a class. Generates vitest test files with describe blocks, createClass helpers, and proper fake dependency injection.
Create or update Fake test doubles for TypeScript interfaces. Use when user asks to "create a fake", "update a fake", "generate test fake", "fix fake", "manage fake", or mentions needing a fake for testing. Generates Initializer interface, Fake class, and Builder class following the testing pattern with getMockingFunction, FakeEntity inheritance, and EventBroker support.
Create or update test files for React components. Use when user asks to "create component tests", "test MyComponent", "generate tests for component", "update component tests", or mentions needing tests for a React component. Generates vitest test files with render, mocked sub-components, and proper test structure focusing on logic and prop validation.
Create or update test files for React hooks. Use when user asks to "create hook tests", "test useMyHook", "generate tests for hook", "update hook tests", or mentions needing tests for a React hook. Generates vitest test files with renderHook, Fake context providers, and proper test structure.