testing▌

Vite-native unit and integration testing framework with Jest-compatible API and parallel execution. \n \n Supports testing Vue, React, and Svelte components with configurable environments (Node, jsdom, or browser mode) \n Provides Jest-compatible API including describe/it blocks, hooks, fixtures, and globals configuration \n Includes comprehensive mocking capabilities: vi.fn for function mocks, vi.mock for module mocking, and timer/date utilities \n Offers code coverage thresholds, snapshot test

Custom Playwright scripts for any browser automation task, with auto-detected dev servers and visible browser execution. \n \n Auto-detects running localhost servers; writes all test scripts to /tmp to avoid project clutter \n Supports responsive design testing, login flows, form filling, link validation, screenshots, and arbitrary browser interactions \n Includes helper utilities for safe element interactions, cookie handling, table data extraction, and custom HTTP headers \n Executes via run.j

$23

Comprehensive Vue.js testing guidance covering unit, component, and end-to-end testing strategies. \n \n Addresses 11 common testing challenges including async handling, composable testing, Pinia store setup, Suspense components, and Teleport queries \n Recommends Vitest for unit and component testing infrastructure, with Playwright as the preferred E2E framework \n Covers black-box component testing patterns to reduce brittleness during refactoring, async/await synchronization, and snapshot tes

Native Python Playwright toolkit for testing and debugging local web applications with server lifecycle management. \n \n Includes with_server.py helper script for managing single or multiple server instances automatically during test execution \n Supports reconnaissance-then-action workflow: screenshot/inspect rendered DOM, identify selectors, then execute interactions \n Provides example scripts covering element discovery, static HTML automation, and console log capture \n Emphasizes waiting f

Terminal-driven browser automation with element snapshots and interactive UI workflows. \n \n Operates via playwright-cli wrapper script (requires npx ); supports headless and headed modes for visual debugging \n Core workflow: open page, snapshot for stable element references, interact using refs, re-snapshot after navigation or DOM changes \n Includes form filling, clicking, typing, multi-tab management, screenshot/PDF capture, and trace recording for flow debugging \n Element refs (e.g., e3 ,

Expert knowledge for testing HTTP APIs with Supertest (TypeScript/JavaScript) and httpx/pytest (Python).

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

Detect timing side channels in cryptographic implementations to prevent secret extraction attacks. \n \n Covers four tool categories: formal verification (mathematical proofs), symbolic execution (concrete counterexamples), dynamic tracing (runtime secret tracking), and statistical testing (real-world timing measurement) \n Provides workflow combining dudect for initial leak detection and timecop for pinpointing root causes, with formal verification for high-assurance audits \n Identifies four c

Comprehensive testing specialist for functional, performance, and security test design and execution. \n \n Covers unit, integration, E2E, performance (k6, Artillery), and security testing (OWASP) with structured workflows from scope definition through reporting \n Enforces test quality standards: meaningful assertions, isolated dependencies, edge-case coverage, and flaky-test remediation \n Provides reference guides for TDD methodology, testing anti-patterns, automation frameworks, and QA pract