TUnit.Assertions 0.53.0

🚀 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

<table> <tr> <td align="center" width="25%">

📈 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	0.52.64	1,039.9 ms	29.30 ms	80.70 ms	1,026.4 ms
Build_NUnit	4.3.2	881.2 ms	17.33 ms	26.46 ms	878.6 ms
Build_xUnit	2.9.3	1,030.9 ms	48.12 ms	138.83 ms	1,012.0 ms
Build_MSTest	3.10.1	1,099.4 ms	65.01 ms	187.58 ms	1,073.7 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
Build_TUnit	0.52.64	1.840 s	0.0336 s	0.0552 s	1.826 s
Build_NUnit	4.3.2	1.538 s	0.0256 s	0.0240 s	1.539 s
Build_xUnit	2.9.3	1.559 s	0.0185 s	0.0173 s	1.557 s
Build_MSTest	3.10.1	1.561 s	0.0233 s	0.0218 s	1.568 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	0.52.64	1.871 s	0.0325 s	0.0657 s	1.861 s
Build_NUnit	4.3.2	1.587 s	0.0267 s	0.0250 s	1.588 s
Build_xUnit	2.9.3	1.590 s	0.0271 s	0.0253 s	1.591 s
Build_MSTest	3.10.1	1.609 s	0.0184 s	0.0172 s	1.612 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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	103.6 ms	1.88 ms	1.66 ms	103.4 ms
TUnit	0.52.64	519.4 ms	7.80 ms	6.92 ms	519.0 ms
NUnit	4.3.2	752.9 ms	14.85 ms	27.15 ms	744.7 ms
xUnit	2.9.3	789.1 ms	14.52 ms	29.33 ms	778.5 ms
MSTest	3.10.1	684.7 ms	7.72 ms	6.45 ms	686.6 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	0.52.64	32.23 ms	0.153 ms	0.143 ms	32.24 ms
TUnit	0.52.64	891.98 ms	17.453 ms	18.674 ms	894.92 ms
NUnit	4.3.2	1,286.54 ms	10.802 ms	9.576 ms	1,286.43 ms
xUnit	2.9.3	1,388.62 ms	13.832 ms	12.939 ms	1,387.46 ms
MSTest	3.10.1	1,237.95 ms	8.184 ms	7.255 ms	1,239.58 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	0.52.64	77.50 ms	1.303 ms	1.155 ms	77.96 ms
TUnit	0.52.64	995.14 ms	19.574 ms	34.282 ms	986.41 ms
NUnit	4.3.2	1,384.84 ms	20.306 ms	16.956 ms	1,386.31 ms
xUnit	2.9.3	1,535.51 ms	26.033 ms	35.635 ms	1,534.29 ms
MSTest	3.10.1	1,370.54 ms	24.680 ms	30.309 ms	1,362.96 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	0.52.64	99.30 ms	1.986 ms	1.858 ms	99.32 ms
TUnit	0.52.64	554.72 ms	10.420 ms	9.237 ms	555.00 ms
NUnit	4.3.2	794.77 ms	15.738 ms	34.545 ms	783.05 ms
xUnit	2.9.3	1,062.76 ms	59.316 ms	168.270 ms	1,033.66 ms
MSTest	3.10.1	1,478.70 ms	86.729 ms	251.615 ms	1,440.97 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	0.52.64	32.83 ms	0.360 ms	0.337 ms	32.79 ms
TUnit	0.52.64	942.73 ms	18.099 ms	19.365 ms	942.49 ms
NUnit	4.3.2	1,363.31 ms	13.903 ms	13.005 ms	1,367.44 ms
xUnit	2.9.3	1,436.99 ms	7.763 ms	6.061 ms	1,440.06 ms
MSTest	3.10.1	1,301.31 ms	8.635 ms	7.655 ms	1,300.96 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	0.52.64	62.62 ms	0.678 ms	0.566 ms	62.45 ms
TUnit	0.52.64	985.26 ms	19.305 ms	23.709 ms	984.45 ms
NUnit	4.3.2	1,380.95 ms	14.765 ms	13.812 ms	1,384.90 ms
xUnit	2.9.3	1,444.05 ms	17.576 ms	16.441 ms	1,446.09 ms
MSTest	3.10.1	1,330.96 ms	12.821 ms	11.365 ms	1,330.73 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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	1,107.8 ms	97.71 ms	288.09 ms	1,049.4 ms
xUnit	2.9.3	864.3 ms	34.70 ms	97.88 ms	847.2 ms
MSTest	3.10.1	979.2 ms	65.62 ms	189.32 ms	980.0 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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	1.281 s	0.0078 s	0.0070 s	1.283 s
xUnit	2.9.3	1.355 s	0.0080 s	0.0074 s	1.358 s
MSTest	3.10.1	1.233 s	0.0112 s	0.0099 s	1.232 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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	1.358 s	0.0187 s	0.0166 s	1.359 s
xUnit	2.9.3	1.406 s	0.0210 s	0.0197 s	1.413 s
MSTest	3.10.1	1.299 s	0.0099 s	0.0092 s	1.298 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	0.52.64	94.78 ms	1.114 ms	0.870 ms	94.68 ms
TUnit	0.52.64	545.56 ms	14.362 ms	41.895 ms	527.37 ms
NUnit	4.3.2	795.54 ms	35.025 ms	97.635 ms	766.91 ms
xUnit	2.9.3	892.99 ms	45.795 ms	134.310 ms	849.28 ms
MSTest	3.10.1	866.24 ms	25.115 ms	72.059 ms	853.30 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	0.52.64	32.14 ms	0.164 ms	0.153 ms	32.15 ms
TUnit	0.52.64	905.03 ms	17.804 ms	21.864 ms	899.86 ms
NUnit	4.3.2	1,315.09 ms	8.081 ms	7.559 ms	1,316.97 ms
xUnit	2.9.3	1,402.00 ms	16.940 ms	15.846 ms	1,405.79 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	0.52.64	62.18 ms	0.700 ms	0.584 ms	62.38 ms
TUnit	0.52.64	961.97 ms	18.876 ms	25.199 ms	957.70 ms
NUnit	4.3.2	1,358.06 ms	16.919 ms	15.826 ms	1,349.80 ms
xUnit	2.9.3	1,431.97 ms	7.020 ms	5.862 ms	1,431.08 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	0.52.64	95.75 ms	1.857 ms	2.835 ms	94.40 ms
TUnit	0.52.64	579.37 ms	28.937 ms	83.951 ms	547.72 ms
NUnit	4.3.2	977.92 ms	37.428 ms	107.387 ms	958.20 ms
xUnit	2.9.3	897.98 ms	20.740 ms	60.501 ms	890.85 ms
MSTest	3.10.1	810.10 ms	16.288 ms	48.026 ms	796.36 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	0.52.64	31.80 ms	0.307 ms	0.272 ms	31.71 ms
TUnit	0.52.64	904.36 ms	17.450 ms	20.773 ms	910.68 ms
NUnit	4.3.2	1,328.36 ms	18.041 ms	15.993 ms	1,328.14 ms
xUnit	2.9.3	1,414.99 ms	18.680 ms	17.473 ms	1,410.57 ms
MSTest	3.10.1	1,272.61 ms	12.897 ms	12.064 ms	1,274.36 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	0.52.64	62.23 ms	0.481 ms	0.402 ms	62.36 ms
TUnit	0.52.64	930.90 ms	18.596 ms	19.097 ms	932.36 ms
NUnit	4.3.2	1,339.82 ms	7.469 ms	6.987 ms	1,341.19 ms
xUnit	2.9.3	1,401.46 ms	26.282 ms	23.298 ms	1,395.71 ms
MSTest	3.10.1	1,284.52 ms	10.047 ms	8.906 ms	1,285.01 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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	NA	NA	NA	NA
TUnit	0.52.64	NA	NA	NA	NA
NUnit	4.3.2	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	0.52.64	108.6 ms	2.39 ms	6.78 ms	107.0 ms
TUnit	0.52.64	620.3 ms	16.93 ms	48.57 ms	610.0 ms
NUnit	4.3.2	849.8 ms	16.96 ms	45.28 ms	842.0 ms
xUnit	2.9.3	762.9 ms	14.48 ms	25.35 ms	753.5 ms
MSTest	3.10.1	678.0 ms	8.12 ms	6.78 ms	678.7 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	0.52.64	32.09 ms	0.152 ms	0.143 ms	32.09 ms
TUnit	0.52.64	909.35 ms	17.945 ms	20.665 ms	908.33 ms
NUnit	4.3.2	1,311.99 ms	15.732 ms	14.715 ms	1,307.56 ms
xUnit	2.9.3	1,417.74 ms	17.790 ms	16.641 ms	1,409.63 ms
MSTest	3.10.1	1,296.41 ms	10.906 ms	10.201 ms	1,291.17 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	0.52.64	62.39 ms	0.160 ms	0.134 ms	62.39 ms
TUnit	0.52.64	956.30 ms	19.070 ms	22.702 ms	949.75 ms
NUnit	4.3.2	1,350.16 ms	20.686 ms	18.338 ms	1,350.57 ms
xUnit	2.9.3	1,412.25 ms	14.038 ms	13.131 ms	1,412.12 ms
MSTest	3.10.1	1,312.66 ms	19.996 ms	18.704 ms	1,311.36 ms