What is unit testing in C# and why is it important?

What is unit testing in C# and why is it important?

Unit testing in C# involves testing individual components of your code to ensure they work as intended. It's important because it helps catch bugs early, improves code quality, and facilitates easier refactoring.

How do I write a simple unit test in C#?

To write a simple unit test in C#, you can use the NUnit framework. First, install NUnit via NuGet, then create a test class and write test methods using the [Test] attribute.

Can you show me an example of a unit test?

Sure! Here's a simple example:

using NUnit.Framework;

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

What tools can I use for unit testing in C#?

You can use several tools for unit testing in C#, including NUnit, xUnit, and MSTest. Each has its own features and benefits.