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

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

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).

Protocol-based dependency injection for testable Swift code with focused abstractions and Swift Testing. \n \n Define small, single-responsibility protocols for each external concern (file system, network, APIs) and provide default production implementations \n Create mock implementations with configurable error properties to test failure paths deterministically without real I/O \n Inject dependencies via default parameters so production code uses real implementations automatically while tests o

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 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 prevent brittle tests during refactoring, async/await patterns to eliminate race con

ln-520-test-planner

Modern unit testing with MSTest 3.x/4.x using current APIs and best practices. \n \n Covers test class structure, lifecycle management, and the AAA (Arrange-Act-Assert) pattern with sealed classes and constructor-based initialization \n Provides comprehensive assertion APIs including equality, null checks, exception testing (Throws/ThrowsExactly), collections, strings, comparisons, and type assertions \n Supports data-driven tests via DataRow and DynamicData with ValueTuple and TestDataRow for t

Custom Playwright scripts for any browser automation task, with auto-detected dev servers and visible browser execution. \n \n Auto-detects running localhost dev servers; writes test scripts to /tmp to avoid project clutter \n Supports responsive design testing, login flows, form filling, link validation, and screenshot capture across multiple viewports \n Includes helper utilities for safe clicks, typed input, cookie banner handling, and table data extraction \n Configurable custom HTTP headers