A .NET Testing Framework
$ dotnet add package TUnit.EngineA modern, flexible and fast testing framework for .NET 8 and up. With Native AOT and Trimmed Single File application support included!
TUnit is designed to aid with all testing types:
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. 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 is supported on the Preview version currently.
Rider is supported. The Enable Testing Platform support option must be selected in Settings > Build, Execution, Deployment > Unit Testing > VSTest.
Visual Studio Code is supported.
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!
dotnet add package TUnit --prerelease
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;
}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'll notice that version 1.0 isn't out yet. While this framework is mostly feature complete, I'm waiting for a few things:
As such, the API may change. I'll try to limit this but it's a possibility.
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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), Arm64 RyuJIT AdvSIMD
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev | Median |
|---|---|---|---|---|
| Build_TUnit | 878.6 ms | 16.30 ms | 32.93 ms | 865.5 ms |
| Build_NUnit | 799.5 ms | 13.61 ms | 15.67 ms | 800.3 ms |
| Build_xUnit | 787.5 ms | 15.40 ms | 13.65 ms | 787.4 ms |
| Build_MSTest | 834.6 ms | 12.98 ms | 12.14 ms | 836.1 ms |
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| Build_TUnit | 1.624 s | 0.0324 s | 0.0318 s |
| Build_NUnit | 1.471 s | 0.0176 s | 0.0156 s |
| Build_xUnit | 1.484 s | 0.0183 s | 0.0162 s |
| Build_MSTest | 1.544 s | 0.0112 s | 0.0099 s |
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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| Build_TUnit | 1.664 s | 0.0267 s | 0.0263 s |
| Build_NUnit | 1.516 s | 0.0234 s | 0.0208 s |
| Build_xUnit | 1.528 s | 0.0231 s | 0.0216 s |
| Build_MSTest | 1.566 s | 0.0187 s | 0.0175 s |
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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), Arm64 RyuJIT AdvSIMD
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev | Median |
|---|---|---|---|---|
| TUnit_AOT | 87.67 ms | 4.321 ms | 12.399 ms | 82.68 ms |
| TUnit | 481.39 ms | 10.852 ms | 30.960 ms | 479.65 ms |
| NUnit | 719.32 ms | 13.761 ms | 34.271 ms | 704.30 ms |
| xUnit | 692.96 ms | 6.190 ms | 5.790 ms | 695.13 ms |
| MSTest | 637.90 ms | 8.012 ms | 7.102 ms | 637.85 ms |
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| TUnit_AOT | 26.15 ms | 0.523 ms | 1.378 ms |
| TUnit | 751.00 ms | 14.347 ms | 14.090 ms |
| NUnit | 1,312.73 ms | 13.066 ms | 12.222 ms |
| xUnit | 1,288.52 ms | 6.296 ms | 5.889 ms |
| MSTest | 1,158.40 ms | 13.694 ms | 12.810 ms |
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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| TUnit_AOT | 78.71 ms | 1.522 ms | 1.869 ms |
| TUnit | 793.47 ms | 15.864 ms | 21.714 ms |
| NUnit | 1,360.41 ms | 26.092 ms | 25.626 ms |
| xUnit | 1,347.52 ms | 17.253 ms | 16.138 ms |
| MSTest | 1,222.23 ms | 11.626 ms | 10.306 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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), Arm64 RyuJIT AdvSIMD
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), Arm64 RyuJIT AdvSIMD
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| TUnit_AOT | 247.0 ms | 15.14 ms | 44.64 ms |
| TUnit | 582.0 ms | 22.22 ms | 65.53 ms |
| NUnit | 14,170.8 ms | 276.60 ms | 258.74 ms |
| xUnit | 14,390.8 ms | 284.34 ms | 505.41 ms |
| MSTest | 14,517.6 ms | 287.40 ms | 472.20 ms |
BenchmarkDotNet v0.14.0, Ubuntu 22.04.5 LTS (Jammy Jellyfish)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| TUnit_AOT | 93.87 ms | 1.935 ms | 5.707 ms |
| TUnit | 832.53 ms | 16.364 ms | 16.805 ms |
| NUnit | 6,325.86 ms | 10.674 ms | 9.985 ms |
| xUnit | 6,381.94 ms | 13.238 ms | 12.383 ms |
| MSTest | 6,298.42 ms | 23.241 ms | 21.739 ms |
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 9.0.100-rc.1.24452.12
[Host] : .NET 9.0.0 (9.0.24.43107), X64 RyuJIT AVX2
.NET 8.0 : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
Job=.NET 8.0 Runtime=.NET 8.0
| Method | Mean | Error | StdDev |
|---|---|---|---|
| TUnit_AOT | 139.7 ms | 2.84 ms | 2.21 ms |
| TUnit | 849.9 ms | 16.94 ms | 24.29 ms |
| NUnit | 7,547.1 ms | 19.07 ms | 17.84 ms |
| xUnit | 7,542.4 ms | 14.22 ms | 11.88 ms |
| MSTest | 7,496.8 ms | 17.31 ms | 15.34 ms |