testing▌

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

Comprehensive testing strategies for Python using pytest, fixtures, mocking, and test-driven development. \n \n Covers unit, integration, functional, and performance testing with the AAA pattern (Arrange, Act, Assert) for test structure \n Includes 10 fundamental and advanced patterns: basic tests, fixtures with setup/teardown, parameterization, mocking, exception handling, async testing, monkeypatching, temporary files, custom fixtures, and property-based testing \n Provides test design princip

Modern C++ testing workflow using GoogleTest/GoogleMock with CMake/CTest integration. \n \n Covers unit and integration test design with TDD red-green-refactor loop, fixtures, mocks, and fakes for dependency isolation \n Includes CMake/CTest configuration with automatic test discovery via gtest_discover_tests() and filtering strategies \n Provides coverage setup for GCC (gcov/lcov) and Clang (llvm-cov), plus sanitizer configuration (ASan, UBSan, TSan) for memory and race detection \n Documents f

Generates unit, widget, integration, and plugin tests for Flutter applications with architectural awareness. \n \n Analyzes target code to determine appropriate test type (unit for logic, widget for UI, integration for end-to-end, plugin for native code) \n Provides decision tree and step-by-step implementation patterns for each test category, including fake/mock setup and assertion strategies \n Includes ready-to-use code templates for ViewModels, Repositories, widgets, and full app flows with

Playwright is a browser automation framework for Node.js and Python supporting Chromium, Firefox, and WebKit with a single API. It provides auto-waiting, web-first assertions, and full test isolation for reliable end-to-end testing.

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

Meta-skill that generates Claude Code skills from the Trail of Bits Testing Handbook. \n \n Analyzes handbook content to identify security testing tools, fuzzers, and techniques, then generates reusable skills with structured templates \n Uses a two-pass generation workflow: Pass 1 generates skill content in parallel, Pass 2 populates cross-references between related skills \n Supports four skill types (Tool, Fuzzer, Technique, Domain) with dedicated templates that enforce consistent structure a

Load with: ui-web.md or ui-mobile.md

Web scraping for dynamic content, authentication, pagination, and data extraction using Playwright. \n \n Handles JavaScript-rendered sites, login flows, and multi-page navigation with built-in wait strategies and selector management \n Supports headless and visible browser modes, with async patterns for reliable automation across flaky elements \n Extracts data via selectors with JSON output, captures screenshots and PDFs, and manages cookies and sessions per context \n Configure via JSON files

Systematic security testing to identify, exploit, and document vulnerabilities in applications, networks, and infrastructure through simulated attacks.