TUnit.Engine 0.55.6

🚀 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.

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⚡ 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

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📚 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

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🏁 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

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🚀 Performance & Modern Platform

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

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🎯 Advanced Test Control

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

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📊 Rich Data & Assertions

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

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🔧 Developer Experience

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

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📝 Simple Test Example

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

    // Act
    var user = await userService.CreateUserAsync("john.doe@example.com");

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

    await Assert.That(user.Email)
        .IsEqualTo("john.doe@example.com");
}

🎯 Data-Driven Testing

[Test]
[Arguments("user1@test.com", "ValidPassword123")]
[Arguments("user2@test.com", "AnotherPassword456")]
[Arguments("admin@test.com", "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

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🧪 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

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🔗 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

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⚡ 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

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🚀 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

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🌟 Join thousands of developers modernizing their testing

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🤝 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.

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🚀 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

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📈 Performance

Optimized execution Parallel by default Zero reflection overhead

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🔮 Future-Ready

Native AOT support Latest .NET features Source generation

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🛠️ Developer Experience

Compile-time checks Rich IDE integration Intelligent debugging

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🎭 Flexibility

Test dependencies Custom attributes Extensible architecture

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📖 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!

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Performance Benchmark

Scenario: Building the test project

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.55.0	1.296 s	0.1058 s	0.3103 s	1.198 s
Build_NUnit	4.4.0	1.221 s	0.0776 s	0.2225 s	1.175 s
Build_xUnit	2.9.3	1.119 s	0.0448 s	0.1284 s	1.133 s
Build_MSTest	3.10.1	1.245 s	0.0690 s	0.2024 s	1.229 s

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.55.0	1.858 s	0.0347 s	0.0579 s	1.837 s
Build_NUnit	4.4.0	1.531 s	0.0125 s	0.0111 s	1.531 s
Build_xUnit	2.9.3	1.568 s	0.0207 s	0.0183 s	1.569 s
Build_MSTest	3.10.1	1.654 s	0.0136 s	0.0114 s	1.658 s

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
Build_TUnit	0.55.0	1.866 s	0.0366 s	0.0723 s	1.848 s
Build_NUnit	4.4.0	1.610 s	0.0295 s	0.0432 s	1.603 s
Build_xUnit	2.9.3	1.590 s	0.0284 s	0.0237 s	1.599 s
Build_MSTest	3.10.1	1.613 s	0.0290 s	0.0271 s	1.609 s

Scenario: Tests focused on assertion performance and validation

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

Benchmarks with issues: RuntimeBenchmarks.TUnit_AOT: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.TUnit: Job-YNJDZW(Runtime=.NET 9.0) 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 v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

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

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

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

Scenario: Tests running asynchronous operations and async/await patterns

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	92.00 ms	1.818 ms	2.363 ms	91.75 ms
TUnit	0.55.0	571.16 ms	12.971 ms	36.796 ms	557.45 ms
NUnit	4.4.0	780.69 ms	15.535 ms	40.926 ms	768.23 ms
xUnit	2.9.3	842.57 ms	19.227 ms	56.087 ms	833.38 ms
MSTest	3.10.1	713.82 ms	14.089 ms	24.675 ms	707.61 ms

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	26.73 ms	0.238 ms	0.223 ms	26.70 ms
TUnit	0.55.0	932.40 ms	18.333 ms	23.186 ms	928.52 ms
NUnit	4.4.0	1,314.07 ms	10.640 ms	9.952 ms	1,314.62 ms
xUnit	2.9.3	1,415.07 ms	5.423 ms	4.807 ms	1,414.16 ms
MSTest	3.10.1	1,265.81 ms	10.604 ms	9.919 ms	1,264.22 ms

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	62.54 ms	0.467 ms	0.390 ms	62.42 ms
TUnit	0.55.0	982.12 ms	18.166 ms	16.993 ms	982.88 ms
NUnit	4.4.0	1,363.58 ms	14.331 ms	13.405 ms	1,360.46 ms
xUnit	2.9.3	1,456.58 ms	13.437 ms	12.569 ms	1,455.24 ms
MSTest	3.10.1	1,291.37 ms	11.390 ms	10.654 ms	1,288.48 ms

Scenario: Simple tests with basic operations and assertions

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	89.81 ms	1.001 ms	0.782 ms	89.95 ms
TUnit	0.55.0	533.44 ms	8.156 ms	10.605 ms	532.83 ms
NUnit	4.4.0	721.10 ms	9.849 ms	8.224 ms	722.11 ms
xUnit	2.9.3	762.53 ms	14.980 ms	25.028 ms	753.91 ms
MSTest	3.10.1	708.14 ms	14.160 ms	28.603 ms	697.29 ms

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	25.27 ms	0.233 ms	0.207 ms	25.34 ms
TUnit	0.55.0	920.93 ms	17.784 ms	21.170 ms	914.03 ms
NUnit	4.4.0	1,306.95 ms	10.820 ms	10.121 ms	1,307.77 ms
xUnit	2.9.3	1,371.95 ms	12.585 ms	10.509 ms	1,374.96 ms
MSTest	3.10.1	1,246.74 ms	9.495 ms	8.417 ms	1,246.18 ms

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	57.72 ms	1.135 ms	1.733 ms	57.61 ms
TUnit	0.55.0	990.42 ms	19.114 ms	25.517 ms	990.78 ms
NUnit	4.4.0	1,345.71 ms	11.880 ms	10.532 ms	1,346.94 ms
xUnit	2.9.3	1,397.77 ms	10.927 ms	9.686 ms	1,396.96 ms
MSTest	3.10.1	1,295.73 ms	15.072 ms	14.098 ms	1,294.68 ms

Scenario: Parameterized tests with multiple test cases using data attributes

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	792.3 ms	15.54 ms	31.04 ms	788.2 ms
xUnit	2.9.3	809.1 ms	15.72 ms	26.69 ms	802.6 ms
MSTest	3.10.1	745.0 ms	14.42 ms	14.16 ms	746.0 ms

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

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	1.327 s	0.0202 s	0.0189 s	1.323 s
xUnit	2.9.3	1.397 s	0.0143 s	0.0133 s	1.393 s
MSTest	3.10.1	1.264 s	0.0188 s	0.0176 s	1.269 s

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

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	1.323 s	0.0160 s	0.0142 s	1.319 s
xUnit	2.9.3	1.380 s	0.0150 s	0.0140 s	1.378 s
MSTest	3.10.1	1.280 s	0.0140 s	0.0131 s	1.285 s

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

Scenario: Tests utilizing class fixtures and shared test context

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	106.6 ms	2.86 ms	8.29 ms	104.0 ms
TUnit	0.55.0	659.6 ms	26.19 ms	76.39 ms	639.3 ms
NUnit	4.4.0	737.1 ms	14.68 ms	37.10 ms	722.7 ms
xUnit	2.9.3	745.9 ms	10.67 ms	18.12 ms	741.7 ms
MSTest	3.10.1	677.6 ms	5.89 ms	4.60 ms	677.1 ms

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	25.31 ms	0.284 ms	0.237 ms	25.25 ms
TUnit	0.55.0	922.03 ms	17.742 ms	18.220 ms	916.64 ms
NUnit	4.4.0	1,303.32 ms	15.369 ms	14.376 ms	1,305.05 ms
xUnit	2.9.3	1,385.89 ms	17.005 ms	15.906 ms	1,391.27 ms
MSTest	3.10.1	NA	NA	NA	NA

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

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	55.26 ms	1.058 ms	1.132 ms	55.32 ms
TUnit	0.55.0	993.92 ms	19.462 ms	29.129 ms	982.43 ms
NUnit	4.4.0	1,340.60 ms	18.648 ms	17.443 ms	1,339.77 ms
xUnit	2.9.3	1,422.02 ms	19.648 ms	18.379 ms	1,417.90 ms
MSTest	3.10.1	NA	NA	NA	NA

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

Scenario: Tests executing in parallel to test framework parallelization

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	107.1 ms	7.86 ms	23.18 ms	105.3 ms
TUnit	0.55.0	562.0 ms	13.03 ms	37.80 ms	556.0 ms
NUnit	4.4.0	715.0 ms	12.66 ms	11.22 ms	711.8 ms
xUnit	2.9.3	743.8 ms	14.10 ms	13.84 ms	741.4 ms
MSTest	3.10.1	718.0 ms	14.25 ms	40.41 ms	701.0 ms

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	25.46 ms	0.168 ms	0.140 ms	25.46 ms
TUnit	0.55.0	929.05 ms	17.933 ms	20.652 ms	926.45 ms
NUnit	4.4.0	1,311.81 ms	5.606 ms	4.377 ms	1,311.79 ms
xUnit	2.9.3	1,387.04 ms	6.882 ms	6.101 ms	1,389.53 ms
MSTest	3.10.1	1,261.49 ms	10.926 ms	10.221 ms	1,261.78 ms

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	49.14 ms	0.964 ms	1.637 ms	48.64 ms
TUnit	0.55.0	986.27 ms	19.125 ms	23.487 ms	983.02 ms
NUnit	4.4.0	1,341.09 ms	14.443 ms	12.804 ms	1,342.60 ms
xUnit	2.9.3	1,399.50 ms	11.389 ms	10.096 ms	1,399.08 ms
MSTest	3.10.1	1,294.32 ms	11.695 ms	10.940 ms	1,293.63 ms

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

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

Benchmarks with issues: RuntimeBenchmarks.TUnit_AOT: Job-YNJDZW(Runtime=.NET 9.0) RuntimeBenchmarks.TUnit: Job-YNJDZW(Runtime=.NET 9.0) 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 v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

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

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	NA	NA	NA	NA
TUnit	0.55.0	NA	NA	NA	NA
NUnit	4.4.0	NA	NA	NA	NA
xUnit	2.9.3	NA	NA	NA	NA
MSTest	3.10.1	NA	NA	NA	NA

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

Scenario: Tests with setup and teardown lifecycle methods

macos-latest

BenchmarkDotNet v0.15.2, macOS Sonoma 14.7.6 (23H626) [Darwin 23.6.0]
Apple M1 (Virtual), 1 CPU, 3 logical and 3 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), Arm64 RyuJIT AdvSIMD

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	99.84 ms	4.795 ms	13.60 ms	97.50 ms
TUnit	0.55.0	588.95 ms	18.544 ms	54.09 ms	580.84 ms
NUnit	4.4.0	850.10 ms	49.595 ms	146.23 ms	796.22 ms
xUnit	2.9.3	870.79 ms	33.880 ms	98.83 ms	862.42 ms
MSTest	3.10.1	876.39 ms	39.012 ms	115.03 ms	893.01 ms

ubuntu-latest

BenchmarkDotNet v0.15.2, Linux Ubuntu 24.04.2 LTS (Noble Numbat)
AMD EPYC 7763, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	25.57 ms	0.405 ms	0.379 ms	25.39 ms
TUnit	0.55.0	910.83 ms	18.024 ms	22.794 ms	904.62 ms
NUnit	4.4.0	1,294.75 ms	11.671 ms	10.917 ms	1,292.65 ms
xUnit	2.9.3	1,356.87 ms	8.749 ms	8.184 ms	1,358.08 ms
MSTest	3.10.1	1,242.34 ms	11.044 ms	10.331 ms	1,238.82 ms

windows-latest

BenchmarkDotNet v0.15.2, Windows 10 (10.0.20348.3932) (Hyper-V)
AMD EPYC 7763 2.44GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 9.0.304
  [Host]     : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2
  Job-YNJDZW : .NET 9.0.8 (9.0.825.36511), X64 RyuJIT AVX2

Runtime=.NET 9.0  

Method	Version	Mean	Error	StdDev	Median
TUnit_AOT	0.55.0	51.80 ms	1.028 ms	1.905 ms	51.31 ms
TUnit	0.55.0	983.23 ms	18.815 ms	23.795 ms	975.98 ms
NUnit	4.4.0	1,411.44 ms	27.749 ms	42.376 ms	1,399.10 ms
xUnit	2.9.3	1,441.09 ms	28.013 ms	27.512 ms	1,431.04 ms
MSTest	3.10.1	1,332.08 ms	18.655 ms	17.450 ms	1,333.27 ms