C# Testing

Testing is a vital aspect of software development that ensures the reliability and correctness of your C# code. C# developers have access to various testing frameworks, such as NUnit, xUnit, and MSTest, to facilitate the process of writing comprehensive tests.

Example: Using NUnit for Unit Testing

using NUnit.Framework;

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

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

In this example, we use the NUnit testing framework to write a unit test for the Add method of the Calculator class, ensuring it returns the correct sum of two numbers.

Unit testing is a fundamental testing approach that verifies the functionality of individual units or components of your C# code.

Example: Testing a Simple Helper Method

public static class StringHelper
{
public static bool IsPalindrome(string text)
{
// Implementation of palindrome check
}
}

using NUnit.Framework;

[TestFixture] public class StringHelperTests
{
[Test] public void IsPalindrome_ReturnsTrue_ForPalindrome()
{
string palindrome = “racecar”;
bool result = StringHelper.IsPalindrome(palindrome);
Assert.IsTrue(result);
}

[Test] public void IsPalindrome_ReturnsFalse_ForNonPalindrome()
{
string nonPalindrome = “hello”;
bool result = StringHelper.IsPalindrome(nonPalindrome);
Assert.IsFalse(result);
}
}

In this example, we write unit tests for the IsPalindrome method in the StringHelper class to ensure it correctly identifies palindrome and non-palindrome strings.