Open source. Open possibilities.

Enzyme is a JavaScript testing utility for React that makes it easier to assert, manipulate, and traverse React components' output, with an API inspired by jQuery for DOM manipulation.

Karate is an open-source test automation framework that unifies API testing, mocks, performance testing, and UI automation into a single tool.

TUnit-native math assertion library for .NET: fluent tolerance, sequence, statistics, linear algebra, number theory, and 3D geometry assertions generated into TUnit's Assert.That pipeline; AOT-compatible and reflection-free.