A free, open source, community-focused unit testing tool for C#, F#, and Visual Basic .NET applications.
xUnit.net is a free, open-source unit testing framework for the .NET platform, specifically designed for C#, F#, and Visual Basic. It provides developers with a robust toolset to write, organize, and execute automated tests, ensuring code quality and reliability. The framework integrates seamlessly with popular development environments and command-line tools, making it a versatile choice for .NET testing workflows.
.NET developers working with C#, F#, or Visual Basic who need a reliable and extensible unit testing framework for their applications. It is particularly valuable for teams adopting test-driven development (TDD) or continuous integration practices.
Developers choose xUnit.net for its modern design, strong community support under the .NET Foundation, and excellent integration with the broader .NET tooling ecosystem. Its extensible architecture and focus on simplicity make it a preferred alternative to older .NET testing frameworks.
xUnit.net is a free, open source, community-focused unit testing tool for .NET.
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Works with C#, F#, and Visual Basic, enabling consistent testing across polyglot .NET projects without switching frameworks.
Integrates with Visual Studio, VS Code, JetBrains Rider, and command-line tools via .NET SDK, providing a unified testing experience across environments.
Designed for customization with analyzers and test runners, allowing teams to tailor testing workflows to specific needs.
Part of the .NET Foundation with clear governance, ensuring long-term stability, community input, and adherence to modern .NET practices.
Upgrading from xUnit.net v2 to v3 requires significant code changes due to API breaks, posing a migration hurdle for established projects.
Has a lean design compared to alternatives like NUnit, so advanced features such as complex parameterized tests often need additional setup or extensions.
Tied exclusively to the .NET ecosystem, making it unsuitable for cross-platform projects that use non-.NET languages or require broader tooling.