How do I implement unit testing

Unit testing is a software testing technique where individual units or components of a software application are tested in isolation from the rest of the application to ensure that each part is functioning as intended. In C#, you can implement unit testing using frameworks like xUnit, NUnit, or MSTest. Below is an example of how to create a simple unit test using NUnit:

using NUnit.Framework; namespace CalculatorTests { public class Calculator { public int Add(int a, int b) { return a + b; } } [TestFixture] public class CalculatorTests { private Calculator _calculator; [SetUp] public void Setup() { _calculator = new Calculator(); } [Test] public void Add_WhenCalled_ReturnsSum() { // Arrange int a = 5; int b = 10; // Act var result = _calculator.Add(a, b); // Assert Assert.AreEqual(15, result); } } }

unit testing C# NUnit xUnit MSTest software testing

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