TUnit.Engine v0.67.19 — nugetz
thomhurst/ TUnit.Engine v0.67.19 ✓ Verified .NET 8.0 .NET 9.0 .NET 10.0 .NET Std2.0
A .NET Testing Framework
Get Started dotnet CLI PackageReference Package Manager
$ dotnet add package TUnit.EngineReadme
🚀 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
🏁 Quick Start
Using the Project Template (Recommended) dotnet new install TUnit.Templates
dotnet new TUnit -n "MyTestProject"
Manual Installation dotnet add package TUnit --prerelease
✨ Key Features 🚀 Performance & Modern Platform
🔥 Source-generated tests (no reflection)
⚡ Parallel execution by default
🚀 Native AOT & trimming support
📈 Optimized for performance
🔗 Test dependencies with [DependsOn]
🎛️ Parallel limits & custom scheduling
🛡️ Built-in analyzers & compile-time checks
🎭 Custom attributes & extensible conditions
📋 Multiple data sources ([Arguments], [Matrix], [ClassData])
✅ Fluent async assertions
🔄 Smart retry logic & conditional execution
📝 Rich test metadata & context
💉 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("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
🧪 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
🛠️ 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 ⚙️ Setup : Enable "Testing Platform support" in Settings > Build, Execution, Deployment > Unit Testing > VSTest
Visual Studio Code ⚙️ 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
💡 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
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 0.66.6 1.425 s 0.0954 s 0.2722 s 1.384 s Build_NUnit 4.4.0 1.171 s 0.0670 s 0.1934 s 1.150 s Build_xUnit 2.9.3 1.149 s 0.0853 s 0.2448 s 1.101 s Build_MSTest 3.11.0 1.108 s 0.0468 s 0.1365 s 1.103 s Build_xUnit3 3.1.0 1.144 s 0.0763 s 0.2238 s 1.093 s
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 Build_TUnit 0.66.6 1.645 s 0.0212 s 0.0188 s 1.645 s Build_NUnit 4.4.0 1.500 s 0.0294 s 0.0302 s 1.502 s Build_xUnit 2.9.3 1.513 s 0.0175 s 0.0163 s 1.513 s Build_MSTest 3.11.0 1.534 s 0.0136 s 0.0127 s 1.539 s Build_xUnit3 3.1.0 1.496 s 0.0247 s 0.0219 s 1.500 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 0.66.6 2.134 s 0.0440 s 0.1275 s 2.143 s Build_NUnit 4.4.0 2.085 s 0.0360 s 0.0319 s 2.085 s Build_xUnit 2.9.3 2.055 s 0.0406 s 0.0865 s 2.057 s Build_MSTest 3.11.0 2.160 s 0.0431 s 0.1142 s 2.152 s Build_xUnit3 3.1.0 2.136 s 0.0424 s 0.0505 s 2.124 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 0.66.6 507.19 ms 28.541 ms 83.71 ms 497.91 ms NUnit 4.4.0 NA NA NA NA xUnit 2.9.3 884.34 ms 54.651 ms 160.28 ms 895.71 ms MSTest 3.11.0 768.27 ms 39.207 ms 115.60 ms 746.33 ms xUnit3 3.1.0 493.87 ms 16.161 ms 47.40 ms 503.28 ms TUnit_AOT 0.66.6 70.85 ms 7.276 ms 21.34 ms 67.87 ms
Benchmarks with issues:
RuntimeBenchmarks.NUnit: Job-YNJDZW(Runtime=.NET 9.0)
ubuntu-latest
BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 2.61GHz, 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 0.66.6 487.37 ms 3.093 ms 2.893 ms 487.43 ms NUnit 4.4.0 908.34 ms 17.276 ms 16.967 ms 911.94 ms xUnit 2.9.3 984.77 ms 19.259 ms 18.015 ms 979.06 ms MSTest 3.11.0 836.95 ms 11.507 ms 10.764 ms 832.08 ms xUnit3 3.1.0 458.16 ms 4.159 ms 3.890 ms 457.83 ms TUnit_AOT 0.66.6 25.31 ms 0.431 ms 0.382 ms 25.16 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 0.66.6 533.36 ms 3.679 ms 3.441 ms 532.96 ms NUnit 4.4.0 1,016.18 ms 20.186 ms 34.820 ms 1,015.43 ms xUnit 2.9.3 1,068.97 ms 20.224 ms 16.888 ms 1,073.74 ms MSTest 3.11.0 968.58 ms 17.772 ms 31.127 ms 964.24 ms xUnit3 3.1.0 516.29 ms 7.819 ms 6.931 ms 515.39 ms TUnit_AOT 0.66.6 65.97 ms 2.281 ms 6.724 ms 65.43 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 0.66.6 608.9 ms 39.85 ms 117.49 ms 577.8 ms NUnit 4.4.0 1,260.3 ms 57.30 ms 166.24 ms 1,274.6 ms xUnit 2.9.3 NA NA NA NA MSTest 3.11.0 1,050.5 ms 41.59 ms 119.99 ms 1,053.4 ms xUnit3 3.1.0 559.6 ms 21.67 ms 62.18 ms 567.1 ms TUnit_AOT 0.66.6 144.6 ms 11.89 ms 34.88 ms 145.0 ms
Benchmarks with issues:
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 0.66.6 447.34 ms 3.704 ms 3.465 ms 447.86 ms NUnit 4.4.0 907.30 ms 17.922 ms 18.404 ms 901.36 ms xUnit 2.9.3 988.70 ms 19.061 ms 17.830 ms 983.11 ms MSTest 3.11.0 842.79 ms 16.374 ms 17.520 ms 842.60 ms xUnit3 3.1.0 460.86 ms 2.968 ms 2.777 ms 459.81 ms TUnit_AOT 0.66.6 26.67 ms 0.506 ms 0.562 ms 26.78 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 0.66.6 494.36 ms 7.194 ms 6.729 ms 490.64 ms NUnit 4.4.0 1,005.78 ms 18.596 ms 17.394 ms 1,007.02 ms xUnit 2.9.3 1,096.34 ms 20.797 ms 22.253 ms 1,097.98 ms MSTest 3.11.0 962.06 ms 18.672 ms 26.175 ms 957.03 ms xUnit3 3.1.0 522.65 ms 9.988 ms 9.343 ms 521.69 ms TUnit_AOT 0.66.6 89.31 ms 2.294 ms 6.728 ms 89.53 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 0.66.6 413.11 ms 29.400 ms 85.30 ms 389.28 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 xUnit3 3.1.0 289.63 ms 7.455 ms 21.51 ms 285.72 ms TUnit_AOT 0.66.6 66.85 ms 9.402 ms 27.57 ms 61.87 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 0.66.6 466.81 ms 5.399 ms 4.786 ms 466.44 ms NUnit 4.4.0 919.54 ms 16.718 ms 15.638 ms 919.80 ms xUnit 2.9.3 994.05 ms 10.533 ms 9.337 ms 992.55 ms MSTest 3.11.0 853.21 ms 16.534 ms 17.691 ms 854.80 ms xUnit3 3.1.0 459.93 ms 3.301 ms 2.926 ms 458.96 ms TUnit_AOT 0.66.6 25.34 ms 0.444 ms 0.415 ms 25.14 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 0.66.6 517.27 ms 4.416 ms 4.130 ms 518.39 ms NUnit 4.4.0 1,018.48 ms 20.084 ms 19.725 ms 1,014.70 ms xUnit 2.9.3 1,079.55 ms 19.399 ms 18.145 ms 1,079.08 ms MSTest 3.11.0 950.05 ms 18.521 ms 21.329 ms 953.91 ms xUnit3 3.1.0 509.16 ms 6.805 ms 6.365 ms 507.00 ms TUnit_AOT 0.66.6 66.58 ms 1.505 ms 4.414 ms 65.67 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 0.66.6 408.74 ms 18.928 ms 55.21 ms 396.30 ms NUnit 4.4.0 NA NA NA NA xUnit 2.9.3 NA NA NA NA MSTest 3.11.0 659.03 ms 22.634 ms 66.38 ms 666.53 ms xUnit3 3.1.0 377.11 ms 11.684 ms 33.90 ms 379.14 ms TUnit_AOT 0.66.6 44.69 ms 3.968 ms 11.39 ms 41.36 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 0.66.6 460.22 ms 2.117 ms 1.877 ms 460.03 ms NUnit 4.4.0 909.38 ms 16.413 ms 15.352 ms 917.73 ms xUnit 2.9.3 1,016.83 ms 18.472 ms 17.279 ms 1,008.66 ms MSTest 3.11.0 866.29 ms 16.852 ms 18.031 ms 865.01 ms xUnit3 3.1.0 486.65 ms 3.559 ms 3.155 ms 487.03 ms TUnit_AOT 0.66.6 28.22 ms 0.343 ms 0.304 ms 28.31 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 0.66.6 550.13 ms 10.668 ms 10.477 ms 545.52 ms NUnit 4.4.0 1,115.22 ms 22.111 ms 23.658 ms 1,115.33 ms xUnit 2.9.3 1,209.43 ms 35.495 ms 100.694 ms 1,223.99 ms MSTest 3.11.0 1,041.10 ms 20.681 ms 23.817 ms 1,038.52 ms xUnit3 3.1.0 565.34 ms 10.258 ms 9.596 ms 565.75 ms TUnit_AOT 0.66.6 71.69 ms 1.423 ms 3.410 ms 71.39 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 0.66.6 286.49 ms 6.152 ms 17.75 ms 285.41 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 xUnit3 3.1.0 375.36 ms 22.387 ms 66.01 ms 362.13 ms TUnit_AOT 0.66.6 64.68 ms 6.634 ms 19.03 ms 62.08 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 0.66.6 452.99 ms 3.907 ms 3.263 ms 453.44 ms NUnit 4.4.0 930.95 ms 14.776 ms 13.821 ms 935.97 ms xUnit 2.9.3 1,006.26 ms 16.690 ms 15.611 ms 1,000.82 ms MSTest 3.11.0 850.14 ms 16.934 ms 18.119 ms 852.12 ms xUnit3 3.1.0 450.19 ms 4.025 ms 3.765 ms 450.09 ms TUnit_AOT 0.66.6 38.57 ms 1.098 ms 3.220 ms 38.60 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 0.66.6 495.87 ms 8.424 ms 10.653 ms 492.34 ms NUnit 4.4.0 973.98 ms 19.011 ms 18.671 ms 972.03 ms xUnit 2.9.3 1,049.78 ms 14.531 ms 13.593 ms 1,044.49 ms MSTest 3.11.0 916.98 ms 16.913 ms 15.821 ms 912.23 ms xUnit3 3.1.0 486.78 ms 3.897 ms 3.645 ms 486.01 ms TUnit_AOT 0.66.6 91.20 ms 1.800 ms 3.152 ms 91.43 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 0.66.6 410.22 ms 23.733 ms 69.23 ms 402.84 ms NUnit 4.4.0 1,342.07 ms 95.053 ms 274.25 ms 1,303.84 ms xUnit 2.9.3 1,328.93 ms 101.864 ms 300.35 ms 1,301.91 ms MSTest 3.11.0 NA NA NA NA xUnit3 3.1.0 470.25 ms 20.347 ms 58.38 ms 468.24 ms TUnit_AOT 0.66.6 58.77 ms 7.644 ms 21.93 ms 53.57 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 0.66.6 442.19 ms 1.731 ms 1.534 ms 441.97 ms NUnit 4.4.0 918.06 ms 17.680 ms 17.364 ms 921.88 ms xUnit 2.9.3 983.91 ms 18.873 ms 17.654 ms 979.36 ms MSTest 3.11.0 838.79 ms 14.777 ms 13.823 ms 844.27 ms xUnit3 3.1.0 449.58 ms 2.903 ms 2.573 ms 449.82 ms TUnit_AOT 0.66.6 24.97 ms 0.208 ms 0.184 ms 24.95 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 0.66.6 510.80 ms 3.865 ms 3.616 ms 511.67 ms NUnit 4.4.0 1,085.21 ms 21.543 ms 37.161 ms 1,079.30 ms xUnit 2.9.3 1,125.35 ms 22.326 ms 27.418 ms 1,124.00 ms MSTest 3.11.0 979.31 ms 15.894 ms 14.867 ms 979.73 ms xUnit3 3.1.0 526.16 ms 5.769 ms 5.396 ms 526.42 ms TUnit_AOT 0.66.6 65.78 ms 1.726 ms 5.063 ms 65.93 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 0.66.6 338.92 ms 19.812 ms 58.105 ms 325.53 ms NUnit 4.4.0 574.90 ms 9.258 ms 7.228 ms 572.83 ms xUnit 2.9.3 NA NA NA NA MSTest 3.11.0 NA NA NA NA xUnit3 3.1.0 324.91 ms 10.115 ms 29.507 ms 318.54 ms TUnit_AOT 0.66.6 60.53 ms 8.531 ms 24.613 ms 56.15 ms
Benchmarks with issues:
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 2.90GHz, 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 0.66.6 486.94 ms 3.897 ms 3.645 ms 487.44 ms NUnit 4.4.0 925.61 ms 17.307 ms 16.189 ms 922.59 ms xUnit 2.9.3 1,085.95 ms 20.200 ms 17.906 ms 1,082.26 ms MSTest 3.11.0 858.03 ms 16.000 ms 14.966 ms 856.06 ms xUnit3 3.1.0 491.88 ms 4.490 ms 3.980 ms 489.95 ms TUnit_AOT 0.66.6 40.90 ms 0.680 ms 0.636 ms 40.67 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 0.66.6 560.34 ms 10.543 ms 9.862 ms 559.08 ms NUnit 4.4.0 1,072.50 ms 20.980 ms 45.608 ms 1,074.71 ms xUnit 2.9.3 1,232.15 ms 24.387 ms 26.094 ms 1,232.77 ms MSTest 3.11.0 994.43 ms 19.847 ms 54.995 ms 991.14 ms xUnit3 3.1.0 580.80 ms 11.371 ms 15.180 ms 581.16 ms TUnit_AOT 0.66.6 81.43 ms 2.104 ms 6.203 ms 82.90 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 0.66.6 525.73 ms 37.455 ms 108.66 ms 518.72 ms NUnit 4.4.0 1,163.42 ms 50.082 ms 143.69 ms 1,154.49 ms xUnit 2.9.3 1,063.35 ms 38.811 ms 113.83 ms 1,063.37 ms MSTest 3.11.0 864.08 ms 79.507 ms 234.43 ms 768.70 ms xUnit3 3.1.0 389.16 ms 18.371 ms 53.59 ms 391.37 ms TUnit_AOT 0.66.6 50.16 ms 6.305 ms 18.19 ms 48.60 ms
ubuntu-latest
BenchmarkDotNet v0.15.4, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 7763 3.14GHz, 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 0.66.6 467.37 ms 2.088 ms 1.953 ms 467.00 ms NUnit 4.4.0 937.52 ms 18.192 ms 19.465 ms 935.06 ms xUnit 2.9.3 1,033.10 ms 18.060 ms 16.894 ms 1,028.90 ms MSTest 3.11.0 885.00 ms 17.336 ms 17.026 ms 882.50 ms xUnit3 3.1.0 465.87 ms 3.757 ms 3.331 ms 465.39 ms TUnit_AOT 0.66.6 26.79 ms 0.208 ms 0.174 ms 26.82 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 0.66.6 527.84 ms 10.425 ms 24.160 ms 521.87 ms NUnit 4.4.0 1,069.13 ms 21.368 ms 22.864 ms 1,069.02 ms xUnit 2.9.3 1,152.17 ms 22.381 ms 29.102 ms 1,160.05 ms MSTest 3.11.0 994.82 ms 19.730 ms 21.929 ms 994.32 ms xUnit3 3.1.0 544.24 ms 10.540 ms 14.071 ms 543.06 ms TUnit_AOT 0.66.6 68.69 ms 2.349 ms 6.815 ms 68.38 ms
Compatibility .NET 8.0
.NET 9.0
.NET 10.0
.NET Std2.0
