🚀 The Modern Testing Framework for .NET

TUnit is a next-generation testing framework for C# that outpaces traditional frameworks with source-generated tests, parallel execution by default, and Native AOT support. Built on the modern Microsoft.Testing.Platform, TUnit delivers faster test runs, better developer experience, and unmatched flexibility.

⚡ Why Choose TUnit?

Feature	Traditional Frameworks	TUnit
Test Discovery	❌ Runtime reflection	✅ Compile-time generation
Execution Speed	❌ Sequential by default	✅ Parallel by default
Modern .NET	⚠️ Limited AOT support	✅ Full Native AOT & trimming
Test Dependencies	❌ Not supported	✅ `[DependsOn]` chains
Resource Management	❌ Manual lifecycle	✅ Intelligent cleanup

⚡ Parallel by Default - Tests run concurrently with intelligent dependency management

🎯 Compile-Time Discovery - Know your test structure before runtime

🔧 Modern .NET Ready - Native AOT, trimming, and latest .NET features

🎭 Extensible - Customize data sources, attributes, and test behavior

📚 Complete Documentation & Learning Center

🚀 New to TUnit? Start with our Getting Started Guide

🔄 Migrating? See our Migration Guides

🎯 Advanced Features? Explore Data-Driven Testing, Test Dependencies, and Parallelism Control

🏁 Quick Start

Using the Project Template (Recommended)

dotnet new install TUnit.Templates
dotnet new TUnit -n "MyTestProject"

Manual Installation

dotnet add package TUnit --prerelease

📖 📚 Complete Documentation & Guides - Everything you need to master TUnit

✨ Key Features

🚀 Performance & Modern Platform

🔥 Source-generated tests (no reflection)
⚡ Parallel execution by default
🚀 Native AOT & trimming support
📈 Optimized for performance

🎯 Advanced Test Control

🔗 Test dependencies with [DependsOn]
🎛️ Parallel limits & custom scheduling
🛡️ Built-in analyzers & compile-time checks
🎭 Custom attributes & extensible conditions

📊 Rich Data & Assertions

📋 Multiple data sources ([Arguments], [Matrix], [ClassData])
✅ Fluent async assertions
🔄 Smart retry logic & conditional execution
📝 Rich test metadata & context

🔧 Developer Experience

💉 Full dependency injection support
🪝 Comprehensive lifecycle hooks
🎯 IDE integration (VS, Rider, VS Code)
📚 Extensive documentation & examples

📝 Simple Test Example

[Test]
public async Task User_Creation_Should_Set_Timestamp()
{
    // Arrange
    var userService = new UserService();

    // Act
    var user = await userService.CreateUserAsync("[email protected]");

    // Assert - TUnit's fluent assertions
    await Assert.That(user.CreatedAt)
        .IsEqualTo(DateTime.Now)
        .Within(TimeSpan.FromMinutes(1));

    await Assert.That(user.Email)
        .IsEqualTo("[email protected]");
}

🎯 Data-Driven Testing

[Test]
[Arguments("[email protected]", "ValidPassword123")]
[Arguments("[email protected]", "AnotherPassword456")]
[Arguments("[email protected]", "AdminPass789")]
public async Task User_Login_Should_Succeed(string email, string password)
{
    var result = await authService.LoginAsync(email, password);
    await Assert.That(result.IsSuccess).IsTrue();
}

// Matrix testing - tests all combinations
[Test]
[MatrixDataSource]
public async Task Database_Operations_Work(
    [Matrix("Create", "Update", "Delete")] string operation,
    [Matrix("User", "Product", "Order")] string entity)
{
    await Assert.That(await ExecuteOperation(operation, entity))
        .IsTrue();
}

🔗 Advanced Test Orchestration

[Before(Class)]
public static async Task SetupDatabase(ClassHookContext context)
{
    await DatabaseHelper.InitializeAsync();
}

[Test, DisplayName("Register a new account")]
[MethodDataSource(nameof(GetTestUsers))]
public async Task Register_User(string username, string password)
{
    // Test implementation
}

[Test, DependsOn(nameof(Register_User))]
[Retry(3)] // Retry on failure
public async Task Login_With_Registered_User(string username, string password)
{
    // This test runs after Register_User completes
}

[Test]
[ParallelLimit<LoadTestParallelLimit>] // Custom parallel control
[Repeat(100)] // Run 100 times
public async Task Load_Test_Homepage()
{
    // Performance testing
}

// Custom attributes
[Test, WindowsOnly, RetryOnHttpError(5)]
public async Task Windows_Specific_Feature()
{
    // Platform-specific test with custom retry logic
}

public class LoadTestParallelLimit : IParallelLimit
{
    public int Limit => 10; // Limit to 10 concurrent executions
}

🔧 Smart Test Control

// Custom conditional execution
public class WindowsOnlyAttribute : SkipAttribute
{
    public WindowsOnlyAttribute() : base("Windows only test") { }

    public override Task<bool> ShouldSkip(TestContext testContext)
        => Task.FromResult(!OperatingSystem.IsWindows());
}

// Custom retry logic
public class RetryOnHttpErrorAttribute : RetryAttribute
{
    public RetryOnHttpErrorAttribute(int times) : base(times) { }

    public override Task<bool> ShouldRetry(TestInformation testInformation,
        Exception exception, int currentRetryCount)
        => Task.FromResult(exception is HttpRequestException { StatusCode: HttpStatusCode.ServiceUnavailable });
}

🎯 Perfect For Every Testing Scenario

🧪 Unit Testing

[Test]
[Arguments(1, 2, 3)]
[Arguments(5, 10, 15)]
public async Task Calculate_Sum(int a, int b, int expected)
{
    await Assert.That(Calculator.Add(a, b))
        .IsEqualTo(expected);
}

Fast, isolated, and reliable

🔗 Integration Testing

[Test, DependsOn(nameof(CreateUser))]
public async Task Login_After_Registration()
{
    // Runs after CreateUser completes
    var result = await authService.Login(user);
    await Assert.That(result.IsSuccess).IsTrue();
}

Stateful workflows made simple

⚡ Load Testing

[Test]
[ParallelLimit<LoadTestLimit>]
[Repeat(1000)]
public async Task API_Handles_Concurrent_Requests()
{
    await Assert.That(await httpClient.GetAsync("/api/health"))
        .HasStatusCode(HttpStatusCode.OK);
}

Built-in performance testing

🚀 What Makes TUnit Different?

Compile-Time Intelligence

Tests are discovered at build time, not runtime - enabling faster discovery, better IDE integration, and precise resource lifecycle management.

Parallel-First Architecture

Built for concurrency from day one with [DependsOn] for test chains, [ParallelLimit] for resource control, and intelligent scheduling.

Extensible by Design

The DataSourceGenerator<T> pattern and custom attribute system let you extend TUnit's capabilities without modifying core framework code.

🏆 Community & Ecosystem

🌟 Join thousands of developers modernizing their testing

🤝 Active Community

📚 Official Documentation - Comprehensive guides, tutorials, and API reference
💬 GitHub Discussions - Get help and share ideas
🐛 Issue Tracking - Report bugs and request features
📢 Release Notes - Stay updated with latest improvements

🛠️ IDE Support

TUnit works seamlessly across all major .NET development environments:

Visual Studio (2022 17.13+)

✅ Fully supported - No additional configuration needed for latest versions

⚙️ Earlier versions: Enable "Use testing platform server mode" in Tools > Manage Preview Features

JetBrains Rider

✅ Fully supported

⚙️ Setup: Enable "Testing Platform support" in Settings > Build, Execution, Deployment > Unit Testing > VSTest

Visual Studio Code

✅ Fully supported

⚙️ Setup: Install C# Dev Kit and enable "Use Testing Platform Protocol"

Command Line

✅ Full CLI support - Works with dotnet test, dotnet run, and direct executable execution

📦 Package Options

Package	Use Case
`TUnit`	⭐ Start here - Complete testing framework (includes Core + Engine + Assertions)
`TUnit.Core`	📚 Test libraries and shared components (no execution engine)
`TUnit.Engine`	🚀 Test execution engine and adapter (for test projects)
`TUnit.Assertions`	✅ Standalone assertions (works with any test framework)
`TUnit.Playwright`	🎭 Playwright integration with automatic lifecycle management

🎯 Migration from Other Frameworks

Coming from NUnit or xUnit? TUnit maintains familiar syntax while adding modern capabilities:

// Enhanced with TUnit's advanced features
[Test]
[Arguments("value1")]
[Arguments("value2")]
[Retry(3)]
[ParallelLimit<CustomLimit>]
public async Task Modern_TUnit_Test(string value) { }

📖 Need help migrating? Check our detailed Migration Guides with step-by-step instructions for xUnit, NUnit, and MSTest.

💡 Current Status

The API is mostly stable, but may have some changes based on feedback or issues before v1.0 release.

🚀 Ready to Experience the Future of .NET Testing?

⚡ Start in 30 Seconds

# Create a new test project with examples
dotnet new install TUnit.Templates && dotnet new TUnit -n "MyAwesomeTests"

# Or add to existing project
dotnet add package TUnit --prerelease

🎯 Why Wait? Join the Movement

📈 Performance

Optimized execution Parallel by default Zero reflection overhead

🔮 Future-Ready

Native AOT support Latest .NET features Source generation

🛠️ Developer Experience

Compile-time checks Rich IDE integration Intelligent debugging

🎭 Flexibility

Test dependencies Custom attributes Extensible architecture

📖 Learn More: tunit.dev | 💬 Get Help: GitHub Discussions | ⭐ Show Support: Star on GitHub

TUnit is actively developed and production-ready. Join our growing community of developers who've made the switch!

Performance Benchmark

Scenario: Building the test project

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.63.3	1.262 s	0.0687 s	0.2015 s	1.2268 s
Build_NUnit	4.4.0	1.074 s	0.0507 s	0.1478 s	1.0651 s
Build_xUnit	2.9.3	1.000 s	0.0382 s	0.1126 s	0.9886 s
Build_MSTest	3.11.0	1.296 s	0.0763 s	0.2239 s	1.2452 s

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.69GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.63.3	1.752 s	0.0265 s	0.0248 s	1.748 s
Build_NUnit	4.4.0	1.555 s	0.0177 s	0.0148 s	1.555 s
Build_xUnit	2.9.3	1.583 s	0.0229 s	0.0214 s	1.587 s
Build_MSTest	3.11.0	1.580 s	0.0247 s	0.0231 s	1.577 s

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.63.3	1.874 s	0.0353 s	0.0347 s	1.881 s
Build_NUnit	4.4.0	1.707 s	0.0202 s	0.0189 s	1.706 s
Build_xUnit	2.9.3	1.727 s	0.0236 s	0.0209 s	1.720 s
Build_MSTest	3.11.0	1.758 s	0.0242 s	0.0215 s	1.762 s

Scenario: Tests focused on assertion performance and validation

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	303.97 ms	6.072 ms	16.21 ms	304.73 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	44.63 ms	4.056 ms	11.83 ms	37.77 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	476.00 ms	4.845 ms	4.532 ms	475.29 ms
NUnit	4.4.0	900.87 ms	15.146 ms	14.167 ms	895.63 ms
xUnit	2.9.3	976.27 ms	14.391 ms	13.461 ms	975.17 ms
MSTest	3.11.0	834.98 ms	16.196 ms	15.150 ms	829.22 ms
TUnit_AOT	0.63.3	24.49 ms	0.180 ms	0.150 ms	24.51 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	527.90 ms	2.998 ms	2.658 ms	527.56 ms
NUnit	4.4.0	1,007.93 ms	13.099 ms	12.253 ms	1,006.72 ms
xUnit	2.9.3	1,083.10 ms	20.842 ms	24.002 ms	1,077.70 ms
MSTest	3.11.0	941.74 ms	18.344 ms	19.628 ms	945.84 ms
TUnit_AOT	0.63.3	65.86 ms	1.802 ms	5.229 ms	65.07 ms

Scenario: Tests running asynchronous operations and async/await patterns

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	348.8 ms	22.53 ms	66.43 ms	340.9 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	125.7 ms	16.10 ms	47.48 ms	127.3 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	451.74 ms	4.207 ms	3.730 ms	451.73 ms
NUnit	4.4.0	930.75 ms	16.671 ms	15.594 ms	925.82 ms
xUnit	2.9.3	1,012.50 ms	18.960 ms	16.807 ms	1,010.40 ms
MSTest	3.11.0	864.62 ms	15.483 ms	14.482 ms	867.88 ms
TUnit_AOT	0.63.3	27.87 ms	0.539 ms	0.577 ms	27.93 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	509.59 ms	6.771 ms	6.334 ms	507.07 ms
NUnit	4.4.0	1,040.42 ms	18.225 ms	16.156 ms	1,040.46 ms
xUnit	2.9.3	1,111.62 ms	18.297 ms	17.115 ms	1,111.54 ms
MSTest	3.11.0	1,012.54 ms	19.771 ms	28.980 ms	1,019.26 ms
TUnit_AOT	0.63.3	94.89 ms	3.051 ms	8.997 ms	94.97 ms

Scenario: Simple tests with basic operations and assertions

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	313.01 ms	8.315 ms	23.59 ms	311.30 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	1,002.82 ms	35.467 ms	104.02 ms	1,009.34 ms
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	53.59 ms	6.541 ms	19.18 ms	50.01 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	461.63 ms	3.063 ms	2.865 ms	461.48 ms
NUnit	4.4.0	919.93 ms	15.925 ms	14.896 ms	911.34 ms
xUnit	2.9.3	1,000.96 ms	19.793 ms	19.439 ms	999.12 ms
MSTest	3.11.0	854.57 ms	16.561 ms	17.720 ms	855.82 ms
TUnit_AOT	0.63.3	25.98 ms	0.274 ms	0.256 ms	25.89 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	528.96 ms	6.020 ms	5.631 ms	527.38 ms
NUnit	4.4.0	1,092.33 ms	23.221 ms	67.736 ms	1,072.28 ms
xUnit	2.9.3	1,111.87 ms	21.802 ms	25.108 ms	1,113.82 ms
MSTest	3.11.0	969.73 ms	19.217 ms	19.735 ms	963.95 ms
TUnit_AOT	0.63.3	68.84 ms	1.908 ms	5.596 ms	69.07 ms

Scenario: Parameterized tests with multiple test cases using data attributes

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	289.08 ms	5.719 ms	11.42 ms	289.72 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	63.51 ms	5.489 ms	16.19 ms	60.27 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.65GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	458.89 ms	2.025 ms	1.795 ms	458.40 ms
NUnit	4.4.0	905.70 ms	17.632 ms	17.317 ms	910.04 ms
xUnit	2.9.3	986.57 ms	16.601 ms	14.716 ms	984.70 ms
MSTest	3.11.0	834.58 ms	14.075 ms	13.166 ms	838.15 ms
TUnit_AOT	0.63.3	26.20 ms	0.137 ms	0.107 ms	26.23 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	547.53 ms	10.585 ms	23.892 ms	538.49 ms
NUnit	4.4.0	1,080.95 ms	21.068 ms	25.080 ms	1,081.74 ms
xUnit	2.9.3	1,197.58 ms	23.927 ms	24.571 ms	1,197.91 ms
MSTest	3.11.0	1,018.69 ms	18.938 ms	33.168 ms	1,018.87 ms
TUnit_AOT	0.63.3	70.32 ms	1.379 ms	2.939 ms	69.92 ms

Scenario: Tests utilizing class fixtures and shared test context

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	353.35 ms	15.634 ms	44.35 ms	346.81 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	65.72 ms	7.863 ms	22.18 ms	60.72 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	447.55 ms	2.844 ms	2.521 ms	447.46 ms
NUnit	4.4.0	910.03 ms	17.682 ms	17.366 ms	904.34 ms
xUnit	2.9.3	982.78 ms	19.638 ms	18.370 ms	977.28 ms
MSTest	3.11.0	846.30 ms	16.462 ms	16.905 ms	849.15 ms
TUnit_AOT	0.63.3	40.28 ms	1.191 ms	3.512 ms	40.15 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	499.51 ms	4.498 ms	3.987 ms	498.56 ms
NUnit	4.4.0	1,004.15 ms	19.750 ms	20.282 ms	998.01 ms
xUnit	2.9.3	1,086.42 ms	20.670 ms	19.335 ms	1,088.79 ms
MSTest	3.11.0	952.39 ms	18.068 ms	29.686 ms	952.77 ms
TUnit_AOT	0.63.3	85.50 ms	1.707 ms	4.467 ms	85.66 ms

Scenario: Tests executing in parallel to test framework parallelization

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	367.78 ms	17.356 ms	50.35 ms	359.15 ms
NUnit	4.4.0	939.34 ms	28.996 ms	84.58 ms	943.22 ms
xUnit	2.9.3	993.22 ms	30.500 ms	87.51 ms	977.04 ms
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	70.29 ms	9.456 ms	27.73 ms	63.31 ms

Benchmarks with issues: RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	448.56 ms	5.239 ms	4.901 ms	448.32 ms
NUnit	4.4.0	927.47 ms	14.896 ms	13.934 ms	929.20 ms
xUnit	2.9.3	1,004.21 ms	19.536 ms	20.062 ms	1,008.84 ms
MSTest	3.11.0	847.05 ms	16.501 ms	15.435 ms	845.30 ms
TUnit_AOT	0.63.3	25.27 ms	0.339 ms	0.317 ms	25.18 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	501.43 ms	4.992 ms	4.670 ms	499.75 ms
NUnit	4.4.0	1,051.31 ms	17.636 ms	19.602 ms	1,044.53 ms
xUnit	2.9.3	1,097.39 ms	20.353 ms	19.990 ms	1,099.31 ms
MSTest	3.11.0	964.10 ms	18.942 ms	25.928 ms	966.08 ms
TUnit_AOT	0.63.3	67.68 ms	2.082 ms	6.041 ms	66.92 ms

Scenario: A test that takes 50ms to execute, repeated 100 times

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	281.33 ms	5.592 ms	14.731 ms	272.89 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	482.81 ms	9.623 ms	11.082 ms	480.77 ms
TUnit_AOT	0.63.3	40.77 ms	0.494 ms	0.904 ms	40.33 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	496.21 ms	5.052 ms	4.726 ms	495.61 ms
NUnit	4.4.0	948.74 ms	18.898 ms	17.678 ms	945.09 ms
xUnit	2.9.3	1,111.18 ms	16.600 ms	15.527 ms	1,111.71 ms
MSTest	3.11.0	883.91 ms	14.989 ms	14.021 ms	882.10 ms
TUnit_AOT	0.63.3	41.44 ms	0.502 ms	0.469 ms	41.32 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	529.09 ms	4.331 ms	3.617 ms	529.70 ms
NUnit	4.4.0	1,020.84 ms	18.015 ms	32.022 ms	1,015.09 ms
xUnit	2.9.3	1,192.48 ms	23.539 ms	43.632 ms	1,187.45 ms
MSTest	3.11.0	939.13 ms	18.025 ms	17.703 ms	942.11 ms
TUnit_AOT	0.63.3	73.78 ms	1.145 ms	1.015 ms	73.57 ms

Scenario: Tests with setup and teardown lifecycle methods

macos-latest


BenchmarkDotNet v0.15.4, macOS Sequoia 15.6.1 (24G90) [Darwin 24.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), Arm64 RyuJIT armv8.0-a

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	298.64 ms	9.042 ms	26.38 ms	294.04 ms
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.11.0	NA	NA	NA	NA
TUnit_AOT	0.63.3	48.79 ms	7.353 ms	21.45 ms	43.88 ms

Benchmarks with issues: RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.xUnit: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.MSTest: Job-YNJDZW(Runtime=.NET 9.0)

ubuntu-latest


BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	454.80 ms	5.288 ms	4.946 ms	452.87 ms
NUnit	4.4.0	918.18 ms	14.265 ms	13.344 ms	917.41 ms
xUnit	2.9.3	1,004.04 ms	19.465 ms	19.989 ms	1,006.67 ms
MSTest	3.11.0	846.74 ms	16.157 ms	15.113 ms	843.31 ms
TUnit_AOT	0.63.3	26.19 ms	0.495 ms	0.439 ms	26.12 ms

windows-latest


BenchmarkDotNet v0.15.4, Windows 11 (10.0.26100.6584/24H2/2024Update/HudsonValley) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.305
  [Host]     : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3
  Job-YNJDZW : .NET 9.0.9 (9.0.9, 9.0.925.41916), X64 RyuJIT x86-64-v3

Runtime=.NET 9.0

Method	Version	Mean	Error	StdDev	Median
TUnit	0.63.3	501.42 ms	5.789 ms	4.834 ms	500.31 ms
NUnit	4.4.0	1,021.19 ms	19.904 ms	24.444 ms	1,018.17 ms
xUnit	2.9.3	1,078.51 ms	17.260 ms	16.145 ms	1,079.54 ms
MSTest	3.11.0	946.27 ms	18.328 ms	24.467 ms	941.51 ms
TUnit_AOT	0.63.3	64.69 ms	1.558 ms	4.419 ms	64.80 ms

Name		Name	Last commit message	Last commit date
Latest commit History 4,087 Commits
.claude/commands		.claude/commands
.config		.config
.github		.github
.idea/.idea.TUnit/.idea		.idea/.idea.TUnit/.idea
.serena		.serena
.vscode		.vscode
Examples		Examples
Playground		Playground
Snapshots/TUnit._.verified/std-streams		Snapshots/TUnit._.verified/std-streams
TUnit.AOT.Tests		TUnit.AOT.Tests
TUnit.Analyzers.CodeFixers		TUnit.Analyzers.CodeFixers
TUnit.Analyzers.Roslyn414		TUnit.Analyzers.Roslyn414
TUnit.Analyzers.Roslyn44		TUnit.Analyzers.Roslyn44
TUnit.Analyzers.Roslyn47		TUnit.Analyzers.Roslyn47
TUnit.Analyzers.Tests		TUnit.Analyzers.Tests
TUnit.Analyzers		TUnit.Analyzers
TUnit.Assertions.Analyzers.CodeFixers.Tests		TUnit.Assertions.Analyzers.CodeFixers.Tests
TUnit.Assertions.Analyzers.CodeFixers		TUnit.Assertions.Analyzers.CodeFixers
TUnit.Assertions.Analyzers.Tests		TUnit.Assertions.Analyzers.Tests
TUnit.Assertions.Analyzers		TUnit.Assertions.Analyzers
TUnit.Assertions.FSharp		TUnit.Assertions.FSharp
TUnit.Assertions.SourceGenerator.Tests		TUnit.Assertions.SourceGenerator.Tests
TUnit.Assertions.SourceGenerator		TUnit.Assertions.SourceGenerator
TUnit.Assertions.Tests		TUnit.Assertions.Tests
TUnit.Assertions		TUnit.Assertions
TUnit.Core.SourceGenerator.Roslyn414		TUnit.Core.SourceGenerator.Roslyn414
TUnit.Core.SourceGenerator.Roslyn44		TUnit.Core.SourceGenerator.Roslyn44
TUnit.Core.SourceGenerator.Roslyn47		TUnit.Core.SourceGenerator.Roslyn47
TUnit.Core.SourceGenerator.Tests		TUnit.Core.SourceGenerator.Tests
TUnit.Core.SourceGenerator		TUnit.Core.SourceGenerator
TUnit.Core.Tests/Helpers		TUnit.Core.Tests/Helpers
TUnit.Core		TUnit.Core
TUnit.Engine.Tests		TUnit.Engine.Tests
TUnit.Engine		TUnit.Engine
TUnit.Example.Asp.Net.TestProject		TUnit.Example.Asp.Net.TestProject
TUnit.Example.Asp.Net		TUnit.Example.Asp.Net
TUnit.Example		TUnit.Example
TUnit.IntegrationTests		TUnit.IntegrationTests
TUnit.Performance.Tests		TUnit.Performance.Tests
TUnit.Pipeline		TUnit.Pipeline
TUnit.Playwright		TUnit.Playwright
TUnit.PublicAPI		TUnit.PublicAPI
TUnit.RpcTests		TUnit.RpcTests
TUnit.Templates.Tests		TUnit.Templates.Tests
TUnit.Templates		TUnit.Templates
TUnit.TestProject.FSharp		TUnit.TestProject.FSharp
TUnit.TestProject.Library		TUnit.TestProject.Library
TUnit.TestProject.VB.NET		TUnit.TestProject.VB.NET
TUnit.TestProject		TUnit.TestProject
TUnit.UnitTests		TUnit.UnitTests
TUnit		TUnit
assets		assets
docs		docs
tools		tools
.editorconfig		.editorconfig
.gitattributes		.gitattributes
.gitignore		.gitignore
Analyzer.props		Analyzer.props
CLAUDE.md		CLAUDE.md
Directory.Build.props		Directory.Build.props
Directory.Build.targets		Directory.Build.targets
Directory.Packages.props		Directory.Packages.props
GitVersion.yml		GitVersion.yml
LICENSE		LICENSE
Library.props		Library.props
Library.targets		Library.targets
Polyfill.targets		Polyfill.targets
README.md		README.md
README_Template.md		README_Template.md
Roslyn.props		Roslyn.props
SourceGenerationDebug.props		SourceGenerationDebug.props
SourceGenerator.props		SourceGenerator.props
TUnit-Innovative-Features-Implementation-Plan.md		TUnit-Innovative-Features-Implementation-Plan.md
TUnit.props		TUnit.props
TUnit.sln		TUnit.sln
TestLibrary.props		TestLibrary.props
TestLibrary.targets		TestLibrary.targets
TestProject.props		TestProject.props
TestProject.targets		TestProject.targets
aot_output.txt		aot_output.txt
build_log.txt		build_log.txt
build_output.txt		build_output.txt
debug_output.txt		debug_output.txt
debug_output2.txt		debug_output2.txt
debug_output3.txt		debug_output3.txt
dotnet-install.sh		dotnet-install.sh
dotnet-install.sh.1		dotnet-install.sh.1
global.json		global.json
hook_changes.patch		hook_changes.patch
package.json		package.json
pr_failures.txt		pr_failures.txt
renovate.json		renovate.json
rider.png		rider.png
run-all-engine-tests.ps1		run-all-engine-tests.ps1
run-aot-tests.ps1		run-aot-tests.ps1
run-reflection-tests.ps1		run-reflection-tests.ps1
run-singlefile-tests.ps1		run-singlefile-tests.ps1
run-source-generation-tests-verbose.ps1		run-source-generation-tests-verbose.ps1
run-source-generation-tests.ps1		run-source-generation-tests.ps1
strongname.snk		strongname.snk

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🚀 The Modern Testing Framework for .NET

⚡ Why Choose TUnit?

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Performance Benchmark

Scenario: Building the test project

macos-latest

ubuntu-latest

windows-latest

Scenario: Tests focused on assertion performance and validation

macos-latest

ubuntu-latest

windows-latest

Scenario: Tests running asynchronous operations and async/await patterns

macos-latest

ubuntu-latest

windows-latest

Scenario: Simple tests with basic operations and assertions

macos-latest

ubuntu-latest

windows-latest

Scenario: Parameterized tests with multiple test cases using data attributes

macos-latest

ubuntu-latest

windows-latest

Scenario: Tests utilizing class fixtures and shared test context

macos-latest

ubuntu-latest

windows-latest

Scenario: Tests executing in parallel to test framework parallelization

macos-latest

ubuntu-latest

windows-latest

Scenario: A test that takes 50ms to execute, repeated 100 times

macos-latest

ubuntu-latest

windows-latest

Scenario: Tests with setup and teardown lifecycle methods

macos-latest

ubuntu-latest

windows-latest