TUnit

T(est)Unit!

Documentation

See here: https://thomhurst.github.io/TUnit/

Speed Comparison

We can't get an extremely accurate speed comparison because the test host runs as its own process - So tools like Benchmark.NET won't work.

But I've tried to create 4 equal basic test suites, which all execute a test method with a 50ms Task.Delay, and repeat it 1000 times. Some frameworks don't easily have repeat mechanisms so this may be artificially produced with a test data source.

While a 50ms Task.Delay isn't obviously a test in itself, it still helps to demonstrate how TUnit is fast at runtime, due to using a newer test architecture, source generation, parallelization and async-await all the way down the stack.

See here for the latest speed test comparisons: https://github.com/thomhurst/TUnit/actions/workflows/speed-comparison.yml?query=branch%3Amain

IDE

TUnit is built on top of newer Microsoft.Testing.Platform libraries, as opposed to older legacy VSTest libraries. As of July 2024, IDEs do not fully support this testing platform yet.

Visual Studio Preview versions can run the new tests by enabling the new testing platform server mode, within Visual Studio preview/experimental features. You will have to opt in to this manually.

For Rider, it is not yet supported. I believe they are working on it so we just have to wait for now.

dotnet CLI - Fully supported. Tests should be runnable with both dotnet test or dotnet run. dotnet run should give you a better experience and make it simpler to pass in test flags!

Features

• Source generated tests
• Full async support
• Parallel by default, with mechanisms to:
  • Run specific tests completely on their own
  • Run specific tests not in parallel with other specific tests
  • Limit the a parallel limit on a per-test, class or assembly level