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.
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
Straight-forward tests, full-featured test suites, and clear coverage reports for zsh and —under zsh's emulation— csh, ksh, and sh. About 300 unique cloners as of Aug '25. Human-written.