A .NET Testing Framework
$ dotnet add package TUnit.CoreA modern, flexible and fast testing framework for .NET 8 and up. With Native AOT and Single File application support included!
See here: https://thomhurst.github.io/TUnit/
TUnit is built on top of the newer Microsoft.Testing.Platform, as opposed to the older VSTest platform. As of September 2024, IDEs do not fully support this testing platform yet.
Visual Studio 17.10 onwards 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 dotnet test or dotnet run, dotnet exec or executing an executable directly. See the docs for more information!
dotnet add package TUnit --prerelease
[Test]
public async Task Test1()
{
var value = "Hello world!";
await Assert.That(value)
.Is.Not.Null
.And.Does.StartWith("H")
.And.Has.Count().EqualTo(12)
.And.Is.EqualTo("hello world!", StringComparison.InvariantCultureIgnoreCase);
}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")]
[EnumerableMethodData(nameof(GetAuthDetails))]
public async Task Register(string username, string password) { ... }
[Repeat(5)]
[Test, DependsOn(nameof(Register))]
[EnumerableMethodData(nameof(GetAuthDetails))]
public async Task Login(string username, string password) { ... }
[Test, DependsOn(nameof(Login), [typeof(string), typeof(string)])]
[EnumerableMethodData(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;
}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. You may have experienced these, or you may have not even known about them.
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 | 81.40 ms | 0.565 ms | 0.472 ms |
| TUnit | 428.60 ms | 8.504 ms | 15.973 ms |
| NUnit | 696.71 ms | 12.455 ms | 16.626 ms |
| xUnit | 688.65 ms | 13.500 ms | 17.073 ms |
| MSTest | 623.95 ms | 11.266 ms | 17.869 ms |
BenchmarkDotNet v0.14.0, Ubuntu 22.04.4 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 | 38.90 ms | 1.028 ms | 3.016 ms |
| TUnit | 808.84 ms | 16.100 ms | 37.634 ms |
| NUnit | 1,365.33 ms | 25.078 ms | 23.458 ms |
| xUnit | 1,351.78 ms | 16.635 ms | 14.746 ms |
| MSTest | 1,229.30 ms | 20.256 ms | 18.948 ms |
BenchmarkDotNet v0.14.0, Windows 10 (10.0.20348.2655) (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 | 93.25 ms | 0.810 ms | 0.677 ms |
| TUnit | 815.10 ms | 15.859 ms | 18.264 ms |
| NUnit | 1,400.85 ms | 12.235 ms | 10.217 ms |
| xUnit | 1,393.26 ms | 17.837 ms | 16.685 ms |
| MSTest | 1,265.85 ms | 10.265 ms | 9.602 ms |
BenchmarkDotNet v0.14.0, Ubuntu 22.04.4 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 | Median |
|---|---|---|---|---|
| TUnit_AOT | 92.59 ms | 1.883 ms | 5.402 ms | 91.12 ms |
| TUnit | 883.00 ms | 17.514 ms | 38.443 ms | 869.20 ms |
| NUnit | 6,556.32 ms | 15.384 ms | 14.390 ms | 6,557.96 ms |
| xUnit | 6,555.72 ms | 32.049 ms | 29.979 ms | 6,555.46 ms |
| MSTest | 6,507.53 ms | 20.884 ms | 18.513 ms | 6,510.20 ms |
BenchmarkDotNet v0.14.0, Windows 10 (10.0.20348.2655) (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 | Median |
|---|---|---|---|---|
| TUnit_AOT | 148.0 ms | 2.96 ms | 5.70 ms | 148.4 ms |
| TUnit | 837.1 ms | 16.59 ms | 22.71 ms | 840.8 ms |
| NUnit | 8,620.0 ms | 170.75 ms | 452.81 ms | 8,808.7 ms |
| xUnit | 8,660.4 ms | 172.15 ms | 343.79 ms | 8,788.3 ms |
| MSTest | 8,619.5 ms | 168.97 ms | 329.57 ms | 8,732.4 ms |
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 | 250.6 ms | 12.43 ms | 36.45 ms | 252.8 ms |
| TUnit | 599.9 ms | 20.94 ms | 61.74 ms | 617.0 ms |
| NUnit | 14,096.1 ms | 276.26 ms | 413.49 ms | 14,156.1 ms |
| xUnit | 14,620.5 ms | 291.66 ms | 503.11 ms | 14,624.3 ms |
| MSTest | 14,385.0 ms | 286.78 ms | 517.13 ms | 14,513.2 ms |