A .NET Testing Framework
$ dotnet add package TUnit.CoreA 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 |
|---|---|---|---|
| Build_TUnit | 892.4 ms | 17.80 ms | 44.66 ms |
| Build_NUnit | 798.0 ms | 15.48 ms | 14.48 ms |
| Build_xUnit | 801.6 ms | 11.12 ms | 8.68 ms |
| Build_MSTest | 856.3 ms | 15.04 ms | 12.56 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 | 1.617 s | 0.0182 s | 0.0161 s |
| Build_NUnit | 1.477 s | 0.0195 s | 0.0182 s |
| Build_xUnit | 1.496 s | 0.0205 s | 0.0192 s |
| Build_MSTest | 1.540 s | 0.0221 s | 0.0207 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 | 1.699 s | 0.0335 s | 0.0313 s |
| Build_NUnit | 1.539 s | 0.0235 s | 0.0208 s |
| Build_xUnit | 1.540 s | 0.0224 s | 0.0199 s |
| Build_MSTest | 1.578 s | 0.0208 s | 0.0194 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 |
|---|---|---|---|
| TUnit_AOT | 74.94 ms | 0.179 ms | 0.140 ms |
| TUnit | 426.20 ms | 7.305 ms | 6.100 ms |
| NUnit | 693.52 ms | 5.676 ms | 5.031 ms |
| xUnit | 684.49 ms | 10.407 ms | 8.690 ms |
| MSTest | 630.16 ms | 6.356 ms | 4.962 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 | 40.32 ms | 1.408 ms | 4.150 ms |
| TUnit | 788.54 ms | 14.961 ms | 14.693 ms |
| NUnit | 1,380.33 ms | 14.620 ms | 13.676 ms |
| xUnit | 1,362.97 ms | 8.721 ms | 8.157 ms |
| MSTest | 1,233.20 ms | 17.467 ms | 16.338 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 | 78.45 ms | 1.090 ms | 0.966 ms |
| TUnit | 782.40 ms | 15.477 ms | 24.096 ms |
| NUnit | 1,331.22 ms | 11.493 ms | 9.598 ms |
| xUnit | 1,303.72 ms | 10.298 ms | 9.129 ms |
| MSTest | 1,197.50 ms | 22.269 ms | 20.830 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 | Median |
|---|---|---|---|---|
| TUnit_AOT | 258.0 ms | 15.24 ms | 44.92 ms | 257.6 ms |
| TUnit | 587.7 ms | 23.40 ms | 69.00 ms | 606.4 ms |
| NUnit | 14,157.8 ms | 275.23 ms | 411.96 ms | 14,169.0 ms |
| xUnit | 14,590.3 ms | 287.18 ms | 553.30 ms | 14,638.1 ms |
| MSTest | 14,340.6 ms | 284.61 ms | 703.50 ms | 14,286.1 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 |
|---|---|---|---|
| TUnit_AOT | 89.23 ms | 1.876 ms | 5.532 ms |
| TUnit | 826.35 ms | 16.425 ms | 19.553 ms |
| NUnit | 6,311.98 ms | 16.134 ms | 15.092 ms |
| xUnit | 6,366.51 ms | 10.106 ms | 8.439 ms |
| MSTest | 6,283.29 ms | 15.246 ms | 14.261 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 | 141.2 ms | 1.69 ms | 1.50 ms |
| TUnit | 860.5 ms | 16.96 ms | 28.33 ms |
| NUnit | 7,547.4 ms | 15.23 ms | 14.25 ms |
| xUnit | 7,531.5 ms | 19.53 ms | 18.27 ms |
| MSTest | 7,486.1 ms | 19.08 ms | 17.85 ms |