A modern, source-generated replacement for xUnit that provides compile-time test discovery, enhanced performance, and improved developer experience.

UXUnit leverages C# source generators to create a high-performance testing framework that eliminates runtime reflection and provides compile-time test validation.

• Source-Generated Test Discovery: Tests are discovered at compile time, eliminating runtime reflection overhead
• Compile-Time Validation: Test method signatures and attributes are validated during compilation
• Zero Runtime Dependencies: No heavy framework dependencies at runtime
• Enhanced Performance: Significantly faster test execution through pre-compiled test runners
• Rich Assertion Library: Uses xunit.assert for compatibility and comprehensive assertion capabilities
• Parameterized Tests: Full support for data-driven tests with source generators
• Parallel Execution: Built-in support for parallel test execution with fine-grained control
• XUnit Compatibility: Designed for easy migration from XUnit with shared assertion library

• Design Document - High-level architecture and design decisions
• Specification - Detailed API and behavior specifications
• Data Model - Internal data structures and models
• Getting Started - Quick start guide

├── src/
│   ├── UXUnit.Core/           # Core framework types and interfaces
│   ├── UXUnit.Generators/     # Source generators
│   └── UXUnit.Runtime/        # Test runner and execution engine
├── test/
│   ├── Assets/XUnitCompatibility/ # XUnit compatibility demonstration
│   ├── UXUnit.Core.Tests/
│   ├── UXUnit.Generators.Tests/
│   └── UXUnit.Integration.Tests/
└── docs/                      # Documentation

using Xunit;

public class CalculatorTests
{
    [Fact]
    public void Add_TwoNumbers_ReturnsSum()
    {
        var calculator = new Calculator();
        var result = calculator.Add(2, 3);
        Assert.Equal(5, result);
    }

    [Theory]
    [InlineData(1, 2, 3)]
    [InlineData(5, 7, 12)]
    [InlineData(-1, 1, 0)]
    public void Add_VariousInputs_ReturnsExpectedSum(int a, int b, int expected)
    {
        var calculator = new Calculator();
        var result = calculator.Add(a, b);
        Assert.Equal(expected, result);
    }
}

MIT License - see LICENSE for details.