What tools for automated testing have you used in your projects?

In C# projects, I used several tools for automated testing:

• NUnit — a popular framework for unit testing, allowing you to write and run tests with various attributes and assertions.
• MSTest — a testing framework built into Visual Studio, convenient for integration with CI/CD.
• xUnit.net — a modern framework with a simple and flexible API, often used in .NET Core projects.
• Moq — a library for creating mock objects, enabling isolation of tested components from dependencies.

Example of a simple test with NUnit:

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);
    }
}

These tools helped ensure code quality and automate functionality testing.