set own created date for the inserted salesforce test records in test class

 How to set created date for a test method in test class in salesforce?

System.Test allows you to set the created date/time of a record.

This is super helpful when inserting test data and you want some of it to appear to the older.

// Sets CreatedDate for a test-context sObject.

 syntax : setCreatedDate(recordId,createdDatetime)

 

 ex :

   @isTest   

 private class SetCreatedDateTest {  

   static testMethod void testSetCreatedDate() {  

     Account a = new Account(name='Test Account');  

     insert a;  

     Test.setCreatedDate(a.Id, DateTime.newInstance(2012,12,12));  

     Test.startTest();  

     Account myAccount = [SELECT Id, Name, CreatedDate FROM Account   

                WHERE Name ='Test Account' limit 1];  

     System.assertEquals(myAccount.CreatedDate, DateTime.newInstance(2012,12,12));  

     Test.stopTest();  

   }  

 }  

 

Key points:

1.All database changes are rolled back at the end of a test. You can’t use this method on records that existed before your test executed.

2.You also can’t use setCreatedDate in methods annotated with @isTest(SeeAllData=true), because those methods have access to all data in your org.

3.This method takes two parameters—an sObject ID and a Datetime value—neither of which can be null.