dotnet-testing-advanced-tunit-fundamentals

Migrating xUnit tests to TUnit involves replacing legacy attributes with TUnit's lifecycle attributes, converting test methods to async Task, and using await Assert.That(...) for fluent asynchronous assertions. The Skill provides syntax mapping guidance for gradual project conversion.

To set up a TUnit project, install the TUnit package and templates via dotnet CLI, create test methods annotated with [Test], convert them to async Task, and use await Assert.That(...) for assertions. Run tests using standard dotnet test commands.

TUnit provides parallelism controls for .NET test execution, allowing teams to manage concurrent test runs across unit and integration tests. These controls integrate with TUnit's lifecycle attributes to coordinate setup and teardown operations.

TUnit requires .NET 8 or higher to run, leveraging modern runtime features for source-generator driven test discovery and AOT support. The framework operates with standard dotnet CLI tools without additional dependencies.