#testing

Render React components in Vitest Browser Mode

Test your code in a real OpenBSD virtual machine on GitHub Actions -- QEMU-powered, with SSH and two-way folder sync

Parses JUnit/xUnit Result XML files with ease

A Testing Platform for WordPress Plugins and Themes

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🤝 A friendly error formatter extension for PHPStan that provides more readable and informative output, including code snippets and color highlighting.

Like Lighthouse for your agent harness - verify your CLAUDE.md/AGENTS.md, skills & hooks are real, then test and measure they actually work. Claude Code + Codex.

Sismic Interactive Statechart Model Interpreter and Checker http://sismic.readthedocs.io/

Mocking utility for PHP functions and WordPress plugin API

Dynamically build an Active Record model (with table) within a test context

An Orchard Core base theme with reusable mixins, components, etc.

Provides a wrapper around SqlLocalDB to simplify running tests or samples that require a SQL Server Database

Cross-platform coverage gathering and processing tool set for dotnet/.Net Framework and Mono

Set of polyfills for changed PHPUnit functionality to allow for creating PHPUnit cross-version compatible tests

Collection of essential libraries and tools for building web extensions

C#/.NET test automation framework for web

Atomic Testing solves the difficulty of maintaining UI tests for third‑party UI components by providing a consistent, reusable approach that adapts across multiple testing environments

Agents are starting to run real business processes. flowproof tests them like anything else: record one real run, then replay it on every commit with zero LLM calls, asserting which tools were called, with which arguments, in which order, and which were not.

Opinionated REST API types: errors (RFC 9457), pagination, health checks, and more. No HTTP client, no business logic — just types.

🐨 Simple and complete CLI testing utilities that encourage good testing practices.

Synthetic users that walk your software before real users do.

Helper plugin around CakePHP testing and TDD as browser backend

A Playwright library to simplify the integration of Internet Identity authentication in E2E tests.

Regression testing for LLM applications — with the baseline in your repository, not on someone's server.

A very fast SIMD-first image comparison library (with nodejs API)

Maintainability checks and repair-loop diagnostics for AI-assisted Python repositories.

Unified toolkit for working with webhooks

Property-based testing for Go

API extension for Behat, used to ease testing of JSON-based APIs

Fluent assertions for tests in Rust that are convenient to write and easy to extend