SandboxPostCopy Interface
To make your sandbox environment business ready, automate data manipulation or business logic tasks. Extend this interface and add methods to perform post-copy tasks, then specify the class during sandbox creation.

Create an Apex class that implements SandboxPostCopy and specify the class here.

At sandbox creation, specify a single Apex class to perform the tasks. This class executes every time the sandbox is copied.

Sample code:

1. global class SandboxPostRefreshHandler implements SandboxPostCopy {   
2.   
3.     global void runApexClass( SandboxContext context ) {   
4.   
5.         System.debug( context.organizationId() + ‘ – ‘ + context.sandboxId() + ‘ – ‘ + context.sandboxName() );  
6.   
7.     }   
8.   
9. }   

Test Class:

1. @isTest  
2. private class SandboxPostRefreshHandlerTest {  
3.   
4.     @isTest  
5.     static void testMySandboxPrep() {  
6.       
7.         Test.startTest();  
8.   
9.         Test.testSandboxPostCopyScript( new SandboxPostRefreshHandler(), UserInfo.getOrganizationId(),  
10.                                         UserInfo.getOrganizationId(), UserInfo.getOrganizationName() );  
11.   
12.         Test.stopTest();  
13.           
14.     }  
15.       
16. }