Microsoft VisualStudio Unit Testing method should be decorated with a [TestMethod] attribute.

[TestMethod]
public void TestAddMethod()
{
        

}

Microsoft VisualStudio Unit Testing class should be declared with a [TestClass] attribute

 [TestClass]
    public class UnitTestMath
    {
        [TestMethod]
        public void TestAdd()
        {
        }
    }

Namespace used for Microsoft Visual Studio Unit Testing –Microsoft.VisualStudio.TestTools.UnitTesting

Example in C# :

using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace TestProjectMath
{
  
    [TestClass]
    public class UnitTestMath
    {
     }
}

When you set the value of the AutoEventWireup attribute to true, the ASP.NET runtime does not require events to specify event handlers like Page_Load or Page_Init.

• Controllers: Classes that handle incoming requests to the application, retrieve model data, and then specify view templates that return a response to the client.
• Models: Classes that represent the data of the application and that use validation logic to enforce business rules for that data.
• Views: Template files that your application uses to dynamically generate HTML responses.