What is unit testing in C# and how do I get started?

What is unit testing in C# and how do I get started?

Unit testing in C# is a software testing method where individual units of code are tested in isolation. To get started, you can use frameworks like NUnit or MSTest.

Can you show me a simple example of a unit test in C#?

Sure! Here's a simple example using NUnit:

using NUnit.Framework;

public class Calculator {
    public int Add(int a, int b) {
        return a + b;
    }
}

[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 do I need to run these tests?

You will need a .NET development environment, such as Visual Studio, and the NUnit framework installed via NuGet. You can run tests using the Test Explorer in Visual Studio.

How do I organize my unit tests in a project?

It's best to create a separate project for your unit tests within your solution. Name it something like 'YourProjectName.Tests' and keep your test classes organized by the functionality they test.