thomhurst / TUnit
A modern, fast and flexible .NET testing framework
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Repository Overview (README excerpt)
Crawler viewTUnit A modern .NET testing framework. Tests are source-generated at compile time, run in parallel by default, and support Native AOT — all built on Microsoft.Testing.Platform. Features • **Compile-time test discovery** — tests are generated at build time rather than discovered via reflection at runtime, which means faster startup and better IDE integration • **Parallel by default** — tests run concurrently; use to express ordering and to cap concurrency • **Data-driven testing** — , , , and custom sources • **Async assertions** with detailed failure messages • **Built-in Roslyn analyzers** — catch mistakes at compile time, such as missing , incorrect method signatures, and invalid attribute combinations • **Extensible** — write your own skip conditions, retry logic, and attributes • **Native AOT & trimming support** • **Lifecycle hooks** — / at method, class, assembly, or test session scope Getting Started Using the Project Template (Recommended) Manual Installation Getting Started Guide · Migration Guides Examples Basic test with assertions Data-driven tests Hooks, dependencies, and retry Custom attributes Extend built-in base classes to create your own skip conditions, retry logic, and more: See the documentation for more examples, including custom retry logic and data sources. IDE Support | IDE | Notes | |-----|-------| | **Visual Studio 2022 (17.13+)** | Works out of the box | | **Visual Studio 2022 (earlier)** | Enable "Use testing platform server mode" in Tools > Manage Preview Features | | **JetBrains Rider** | Enable "Testing Platform support" in Settings > Build, Execution, Deployment > Unit Testing > Testing Platform | | **VS Code** | Install C# Dev Kit and enable "Use Testing Platform Protocol" | | **CLI** | Works with , , and direct execution | Packages | Package | Purpose | |---------|---------| | | Start here — the full framework (Core + Engine + Assertions) | | | Shared test library components without an execution engine | | | Execution engine for test projects | | | Standalone assertions — works with other test frameworks too | | | Playwright integration with automatic browser lifecycle management | Migrating from xUnit, NUnit, or MSTest? The syntax will feel familiar. For example, xUnit's becomes , and + becomes + . See the migration guides for full details: xUnit · NUnit · MSTest. Community • Documentation — guides, tutorials, and API reference • GitHub Discussions — questions and ideas welcome • Issues — bug reports and feature requests • Changelog