testing▌

Comprehensive test case generation from PRD documents and user requirements with full coverage mapping. \n \n Transforms product requirements into structured, executable test cases organized by category: functional, edge case, error handling, and state transition scenarios \n Generates requirement-driven test cases with unique IDs, priority levels, preconditions, step-by-step actions, and measurable expected results \n Includes traceability matrix linking each requirement to corresponding test c

Systematic approach to backtesting trading strategies based on professional methodology that prioritizes robustness over optimistic results.

Generate Playwright tests from scenarios using interactive browser exploration and validation. \n \n Guides you through step-by-step test creation: scenario review, browser exploration, element inspection, interaction validation, and final test generation \n Integrates with Playwright MCP tools to inspect page elements, capture selectors, and validate interactions before writing test code \n Generates TypeScript tests using @playwright/test framework and automatically saves them to the tests dir

Systematically identify and fix all failing tests using smart error grouping. \n \n Groups failures by error type, affected module, and root cause, then prioritizes fixes by impact and dependency order \n Fixes infrastructure issues first (imports, dependencies, configuration), followed by API changes, then logic bugs \n Runs focused test subsets after each fix using pytest markers and file patterns to verify progress before moving to the next group \n Follows a structured workflow: initial test

Unit testing validates individual functions, methods, and classes in isolation by mocking all external dependencies.

50+ production-tested Playwright patterns for E2E, API, component, visual, accessibility, and security testing. \n \n Covers 10 golden rules including resilient locator selection ( getByRole() first), web-first assertions with auto-retry, fixture-based test isolation, and CI/CD best practices across GitHub Actions, GitLab, CircleCI, Azure, and Jenkins \n Includes framework-specific recipes for React, Next.js, Vue, Angular, and migration guides from Cypress and Selenium with TypeScript and JavaSc

When running Playwright tests from Claude Code or any CLI agent, always use minimal reporters to prevent verbose output from consuming the context window.

Browser automation with 40+ commands for navigation, interaction, form filling, and web testing. \n \n Supports multiple browsers (Chrome, Firefox, WebKit, Edge) with persistent profiles, extensions, and custom configurations \n Core interactions include clicking, typing, dragging, selecting, uploading files, and handling dialogs across page elements \n Storage management for cookies, localStorage, and sessionStorage; network request mocking and routing for testing \n DevTools integration with c

Comprehensive testing strategy design covering unit, integration, E2E testing, and TDD practices. \n \n Implements test pyramid structure with recommended ratios: 70% unit tests, 20% integration, 10% E2E tests \n Provides Given-When-Then patterns for unit testing, mocking strategies for external dependencies, and API endpoint testing examples \n Includes E2E testing guidance using Playwright for complete user flow validation and TDD red-green-refactor cycle methodology \n Covers CI/CD integratio

Modern TypeScript testing with Vite-native speed, ESM-first design, and instant HMR feedback. \n \n Vite-powered test execution delivers 10-100x faster performance than Jest through HMR-based test running and native ES module support \n Built-in TypeScript support requires zero configuration; includes Jest-compatible API for straightforward migration from existing test suites \n Supports React and Vue component testing via Testing Library and Vue Test Utils, with jsdom/happy-dom environment opti