function readOnly(count){ }
Sign Up ›
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
Learn More

Browse by Topic
ShowAll Questionssorted byDate Posted
+ Start a Discussion
User SFDCUser SFDC 

Do we need to explicitly mention @isTest(SeeAllData=false)

Do we need to explicitly mention @isTest(SeeAllData=false) on all test classes.

What is the difference between a test class having @isTest(SeeAllData=false) and the other one with only @isTest
Gopal AgrawalGopal Agrawal

Hi SFDC,

Below link will help you :

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_seealldata_using.htm

Thanks
User SFDCUser SFDC
Hi Gopal,

Thanks for the response. But the above link helps us to understand the difference between 
@isTest(SeeAllData=false) & @isTest(SeeAllData=true)
but not 
@isTest(SeeAllData=false) and @isTest
Gopal AgrawalGopal Agrawal
Hi, @isTest(SeeAllData=false) and @isTest are same. Bydefault SeeAllData value is false.
Gopal AgrawalGopal Agrawal
Hi,

If this answer helps you, please mark as solved and best answer.

Thanks in advance
User SFDCUser SFDC
Agreed Gopal... Just wanted to check whether explicitly annotating will have some difference to the other(@isTest).
What is the best practice around this ?
 @isTest(SeeAllData=false) OR @isTest ?
 
Amit Chaudhary 8Amit Chaudhary 8
Hi,

There is no difference in both of them. You can use any of them. Some time we need to create multiple test method in same test class. If you want to use seeAllData in some method not to use other method then you can use like below
  
@isTest
                    
private class MyTestClass 
{

   @isTest(SeeAllData=false) 
   static void test1() {
      // Implement test code
   }

   @isTest(SeeAllData=true) 
   static void test2() {
      // Implement test code
   }

}


Considerations for the IsTest(SeeAllData=true) Annotation
  • If a test class is defined with the isTest(SeeAllData=true) annotation, this annotation applies to all its test methods whether the test methods are defined with the @isTest annotation or the testmethod keyword.
  • The isTest(SeeAllData=true) annotation is used to open up data access when applied at the class or method level. However, using isTest(SeeAllData=false) on a method doesn’t restrict organization data access for that method if the containing class has already been defined with the isTest(SeeAllData=true) annotation. In this case, the method will still have access to all the data in the organization.
Please check below post for more information
1) https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_annotation_isTest.htm
2) https://developer.salesforce.com/forums/?id=906F0000000B0wpIAC

Let us know if this will help you
farukh sk hdfarukh sk hd
Do visit,

https://www.sfdc-lightning.com/2018/09/testing-in-salesforce-with-seealldata.html