thomhurst/ TUnit.Engine v0.1.767 docs d <> code . compare c
✓ Verified .NET 8.0 .NET 9.0 .NET 10.0 .NET Std2.0
A .NET Testing Framework
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$ dotnet add package TUnit.EngineReadme TUnit
A modern, flexible and fast testing framework for .NET 8 and up. With Native AOT and Trimmed Single File application support included!
Documentation
See here: https://thomhurst.github.io/TUnit/
IDE
TUnit is built on top of the newer Microsoft.Testing.Platform, as opposed to the older VSTest platform. Because the infrastructure behind the scenes is new and different, you may need to enable some settings. This should just be a one time thing.
Visual Studio
Visual Studio is supported.
Rider
Rider is supported. The Enable Testing Platform support option must be selected in Settings > Build, Execution, Deployment > Unit Testing > VSTest.
<img src="/docs/static/img/rider.png" height="300px">
VS Code
Visual Studio Code is supported.
Install the extension Name: C# Dev Kit
Go to the C# Dev Kit extension's settings
Enable Dotnet > Test Window > Use Testing Platform Protocol
<img src="/docs/static/img/visual-studio-code.png" height="300px">
CLI
dotnet CLI - Fully supported. Tests should be runnable with dotnet test, dotnet run, dotnet exec or executing an executable directly. See the docs for more information!
Features
Native AOT / Trimmed Single File application support
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 parallel limit on a per-test, class or assembly level
Test ordering (if running not in parallel)
Tests can depend on other tests to form chains, useful for if one test depends on state from another action
Easy to read assertions
Injectable test data via classes, methods, compile-time args, or matrices Hooks before and after:
TestDiscover
TestSession
Assembly
Class
Test
Designed to avoid common pitfalls such as leaky test states
Ability to view and interrogate metadata and results from various assembly/class/test context objects
Installation dotnet add package TUnit --prerelease
Example test private static readonly TimeOnly Midnight = TimeOnly.FromTimeSpan(TimeSpan.Zero);
private static readonly TimeOnly Noon = TimeOnly.FromTimeSpan(TimeSpan.FromHours(12));
[Test]
public async Task IsMorning()
{
var time = GetTime();
await Assert.That(time).IsAfterOrEqualTo(Midnight)
.And.IsBefore(Noon);
}
or with more complex test orchestration needs
[Before(Class)]
public static async Task ClearDatabase(ClassHookContext context) { ... }
[After(Class)]
public static async Task AssertDatabaseIsAsExpected(ClassHookContext context) { ... }
[Before(Test)]
public async Task CreatePlaywrightBrowser(TestContext context) { ... }
[After(Test)]
public async Task DisposePlaywrightBrowser(TestContext context) { ... }
[Retry(3)]
[Test, DisplayName("Register an account")]
[MethodData(nameof(GetAuthDetails))]
public async Task Register(string username, string password) { ... }
[Repeat(5)]
[Test, DependsOn(nameof(Register))]
[MethodData(nameof(GetAuthDetails))]
public async Task Login(string username, string password) { ... }
[Test, DependsOn(nameof(Login), [typeof(string), typeof(string)])]
[MethodData(nameof(GetAuthDetails))]
public async Task DeleteAccount(string username, string password) { ... }
[Category("Downloads")]
[Timeout(300_000)]
[Test, NotInParallel(Order = 1)]
public async Task DownloadFile1() { ... }
[Category("Downloads")]
[Timeout(300_000)]
[Test, NotInParallel(Order = 2)]
public async Task DownloadFile2() { ... }
[Repeat(10)]
[Test]
[Arguments(1)]
[Arguments(2)]
[Arguments(3)]
[DisplayName("Go to the page numbered $page")]
public async Task GoToPage(int page) { ... }
[Category("Cookies")]
[Test, Skip("Not yet built!")]
public async Task CheckCookies() { ... }
[Test, Explicit, WindowsOnlyTest, RetryHttpServiceUnavailable(5)]
[Property("Some Key", "Some Value")]
public async Task Ping() { ... }
[Test]
[ParallelLimit<LoadTestParallelLimit>]
[Repeat(1000)]
public async Task LoadHomepage() { ... }
public static IEnumerable<(string Username, string Password)> GetAuthDetails()
{
yield return ("user1", "password1");
yield return ("user2", "password2");
yield return ("user3", "password3");
}
public class WindowsOnlyTestAttribute : SkipAttribute
{
public WindowsOnlyTestAttribute() : base("Windows only test")
{
}
public override Task<bool> ShouldSkip(TestContext testContext)
{
return Task.FromResult(!OperatingSystem.IsWindows());
}
}
public class RetryHttpServiceUnavailableAttribute : RetryAttribute
{
public RetryHttpServiceUnavailableAttribute(int times) : base(times)
{
}
public override Task<bool> ShouldRetry(TestInformation testInformation, Exception exception, int currentRetryCount)
{
return Task.FromResult(exception is HttpRequestException { StatusCode: HttpStatusCode.ServiceUnavailable });
}
}
public class LoadTestParallelLimit : IParallelLimit
{
public int Limit => 50;
}
Motivations TUnit is inspired by NUnit and xUnit - two of the most popular testing frameworks for .NET.
It aims to build upon the useful features of both while trying to address any pain points that they may have.
Benchmark
Scenario: Building the test project
ubuntu-latest
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev Build_TUnit 1.613 s 0.0312 s 0.0371 s Build_NUnit 1.451 s 0.0243 s 0.0227 s Build_xUnit 1.412 s 0.0209 s 0.0175 s Build_MSTest 1.434 s 0.0261 s 0.0231 s
macos-latest
BenchmarkDotNet v0.14.0, macOS Sonoma 14.6.1 (23G93) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
DefaultJob : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Method Mean Error StdDev Median Build_TUnit 930.4 ms 47.32 ms 138.03 ms 892.4 ms Build_NUnit 708.0 ms 12.41 ms 11.00 ms 707.5 ms Build_xUnit 708.4 ms 7.78 ms 7.27 ms 708.8 ms Build_MSTest 758.0 ms 5.98 ms 5.30 ms 758.5 ms
windows-latest
BenchmarkDotNet v0.14.0, Windows 10 (10.0.20348.2700) (Hyper-V)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev Build_TUnit 1.483 s 0.0295 s 0.0303 s Build_NUnit 1.353 s 0.0185 s 0.0173 s Build_xUnit 1.364 s 0.0173 s 0.0153 s Build_MSTest 1.365 s 0.0167 s 0.0157 s
Scenario: A single test that completes instantly (including spawning a new process and initialising the test framework)
ubuntu-latest
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev TUnit_AOT 47.12 ms 0.929 ms 2.261 ms TUnit 742.85 ms 14.750 ms 19.180 ms NUnit 1,318.15 ms 9.880 ms 8.759 ms xUnit 1,302.05 ms 13.606 ms 12.727 ms MSTest 1,171.58 ms 14.299 ms 12.675 ms
windows-latest
BenchmarkDotNet v0.14.0, Windows 10 (10.0.20348.2700) (Hyper-V)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev TUnit_AOT 83.38 ms 1.648 ms 3.404 ms TUnit 783.74 ms 15.563 ms 21.817 ms NUnit 1,360.60 ms 14.801 ms 13.121 ms xUnit 1,345.95 ms 8.278 ms 6.912 ms MSTest 1,220.28 ms 13.593 ms 12.715 ms
macos-latest
BenchmarkDotNet v0.14.0, macOS Sonoma 14.6.1 (23G93) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
DefaultJob : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Method Mean Error StdDev Median TUnit_AOT 158.1 ms 15.87 ms 46.29 ms 155.4 ms TUnit 614.2 ms 35.83 ms 105.09 ms 590.9 ms NUnit 1,045.0 ms 49.17 ms 144.20 ms 1,021.2 ms xUnit 821.8 ms 45.04 ms 129.22 ms 780.0 ms MSTest 839.7 ms 17.30 ms 48.50 ms 842.6 ms
Scenario: A test that takes 50ms to execute, repeated 100 times (including spawning a new process and initialising the test framework)
ubuntu-latest
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev TUnit_AOT 81.35 ms 1.484 ms 1.239 ms TUnit 851.84 ms 16.988 ms 20.863 ms NUnit 6,380.26 ms 16.997 ms 15.068 ms xUnit 6,475.34 ms 22.062 ms 20.637 ms MSTest 6,380.68 ms 21.059 ms 19.699 ms
windows-latest
BenchmarkDotNet v0.14.0, Windows 10 (10.0.20348.2700) (Hyper-V)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Method Mean Error StdDev TUnit_AOT 130.9 ms 2.78 ms 8.20 ms TUnit 831.1 ms 16.08 ms 25.04 ms NUnit 7,496.0 ms 15.49 ms 14.49 ms xUnit 7,497.7 ms 12.14 ms 11.35 ms MSTest 7,419.0 ms 15.15 ms 13.43 ms
macos-latest
BenchmarkDotNet v0.14.0, macOS Sonoma 14.6.1 (23G93) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 8.0.401
[Host] : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
DefaultJob : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Method Mean Error StdDev TUnit_AOT 241.7 ms 11.71 ms 34.52 ms TUnit 614.6 ms 19.77 ms 58.28 ms NUnit 14,298.4 ms 283.86 ms 573.40 ms xUnit 14,545.5 ms 289.23 ms 577.63 ms MSTest 14,525.8 ms 289.72 ms 591.83 ms
Compatibility .NET 8.0
.NET 9.0
.NET 10.0
.NET Std2.0
