xUnit SDK

Docs for xUnit SDK v0.4.0

Living documentation for .NET projects. Write tests that double as documentation — from unit-level specifications to full end-to-end API journeys.

Three Ways to Document Your Code

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BDD Features

Gherkin-style Given / When / Then scenarios that read like plain English. Perfect for acceptance tests and business-facing documentation.

Write your first feature →

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Specifications

Concise rules for business policies and technical contracts. Less ceremony than BDD — useful when exact examples matter more than a workflow narrative.

Write your first spec →

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Journey Testing

End-to-end API testing with annotated .http files. Your API journeys work as both manual exploration tools and automated regression tests with response contract validation.

Explore journey testing →

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Start Here

The Getting Started guide is the single setup path for the xUnit SDK. Choose AI Agent or .NET CLI there, then create and run your first living specification.

🚀 Get Started with xUnitInstall LiveDoc manually or with an AI agent, then run your first documented test.

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Explore the Docs

🚀 LearnStep-by-step tutorials from install to your first feature, spec, and data-driven test.📖 API ReferenceEvery attribute, step method, context property, and configuration option documented.🗺️ Journey TestingEnd-to-end API flows in .http files with auto-generated test classes and response contracts.💡 GuidesBest practices, viewer integration, debugging, troubleshooting, and more.