What is difference between the Test environment for the class and the Production environment for the class?

Hi Mohit,

Hi

Production Enviroment of Apex Class:- its a piece of code which do some task in your application.
in simple if you have written a piece of code to add two fields and display that in another field.

Ex:-

Public Class add{
your code..........
}

Test Enviroment of Apex test Class :-its also a piece of code which test the functionality of the apex class.
Ex:-to check the above apex program is performing correctly or not in runtime ,you will write test method by insert in some dummy data and checking the out put in the same class by using system assert function.

apex test class syntax:-

@isTest
private class add {
static testMethod void add() {
Your test code...............
}
}