Welcome to xUnit

xUnit is a widely used unit testing framework for .NET applications. It provides a modern, flexible, and extensible approach to writing tests, making it a preferred choice over older frameworks like MSTest and NUnit.

Key Features of xUnit

• Attribute-Based Testing: Uses [Fact] for single tests and [Theory] for parameterized tests.

• Built-In Dependency Injection: Supports constructor injection for test class dependencies.

• Isolation & Parallelization: Runs tests in isolation and supports parallel execution for better performance.

• Extensibility: Allows custom test behaviors using fixtures and collections.

Basic Example:

public class SampleTests
{
    [Fact]
    public void Addition_ShouldReturnCorrectSum()
    {
        int result = 2 + 3;
        Assert.Equal(5, result);
    }
}

xUnit is well-integrated with .NET CLI, Visual Studio, and CI/CD pipelines, making it an excellent choice for test automation in modern .NET applications.