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AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.
Simple gRPC benchmarking and load testing tool
Papercut SMTP -- The Simple Desktop Email Server
Mutation testing for JavaScript and friends
Bluepill is a reliable iOS testing tool that runs UI tests using multiple simulators on a single machine
Chaos testing, network emulation, and stress testing tool for containers
A browser testing and web crawling library for PHP and Symfony
A friendly substitute for .NET mocking libraries.
Global edition of ARTEX — an LLM multi-agent autonomous penetration-testing framework. English default, switchable to Korean/Chinese/Spanish/Japanese. For authorized, defensive and detection use only. (upstream: Autumn-27/ARTEX, AGPL-3.0)
:chart_with_upwards_trend: The Rack Based A/B testing framework
Testcontainers is a NodeJS library that supports tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
NUnit Framework
An in memory postgres DB instance for your unit tests
A contract-driven gRPC regression harness for AI coding agents, with human-approved baselines. Snapshot the valid call chains of an API so an agent can look one up instead of tracing for it. gRPC today, OpenAPI next
Distributed load-testing framework for .NET. Create distributed load test scenarios entirely using plain C# or F#. It is designed to test any system regardless of the protocol or a semantic model (Pull/Push).
Mutation testing for .NET core and .NET framework!
Performance monitoring and benchmarking suite
Get a full fake GraphQL API with zero coding in less than 30 seconds.
SpecBDD Framework for PHP
The easy mocking library for .NET
Generating fake data for the JVM (Java, Kotlin, Groovy) has never been easier!
Concurrent browser tests for your Elixir web apps.
Testing layer for Microsoft's HttpClient library. Create canned responses using a fluent API.