# Tryboy869 Dojutsu For AI Typescript React Cursorrules Prompt File > typescript-react-cursorrules-prompt-file - Skill: `tomevault-io/tryboy869-dojutsu-for-ai-typescript-react-cursorrules-prompt` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/tryboy869-dojutsu-for-ai-typescript-react-cursorrules-prompt` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/tryboy869-dojutsu-for-ai-typescript-react-cursorrules-prompt/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Web & Frontend - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/tryboy869-dojutsu-for-ai-typescript-react-cursorrules-prompt --- # typescript-react-cursorrules-prompt-file --- description: Testing guidelines for TypeScript + React applications, including unit testing, integration testing, and end-to-end testing strategies. globs: src/**/* --- - Use Jest for unit testing React components and utility functions. - Use React Testing Library for component testing with a focus on user behavior. - Use Cypress or Playwright for end-to-end testing of user flows. - Implement proper test coverage targets (aim for 80%+ coverage). - Use mocking for external dependencies and API calls in unit tests. - Test both success and error states for components and hooks. - Use snapshot testing sparingly and only for simple, stable components. - Implement proper test data setup and teardown with beforeEach/afterEach. - Use describe blocks to group related tests for better organization. - Test asynchronous behavior with proper async/await patterns. - Use data-testid attributes for selecting elements in tests when necessary. - Implement proper environment setup for different test types (unit, integration, e2e). - Use factory functions for creating test data to reduce duplication. - Test edge cases and boundary conditions for components and functions. - Use page objects pattern for end-to-end tests to improve maintainability. - Implement visual regression testing for critical UI components. - Use code coverage tools to identify untested code paths. - Test accessibility with tools like axe-core in Jest tests. - Implement proper error boundary testing for React components. - Use parameterized tests for testing multiple similar scenarios. - Test responsive behavior with different viewport sizes. - Implement proper cleanup between tests to prevent test interdependence. - Use realistic data in tests rather than dummy data when possible. - Test loading states, empty states, and error states for data-driven components. --- > Source: [Tryboy869/dojutsu-for-ai](https://github.com/Tryboy869/dojutsu-for-ai) — distributed by [TomeVault](https://tomevault.io).