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balakrishna mandula 8balakrishna mandula 8 

test class for after update trigger

Hi 

Could you please help me to write test class for after update trigger? I know this is simple test class but I am new to coding.

Scinario:

Parent object: Incident
Child Object: Task

there is checkbox field call Task_Updated__c on both parent and child. if any of the child's checkbox field is true then parent checkbox field Task_Updated__c to be TRUE

trigger UpdateInc_On_update_Task on Task__c (after update) {
   set<Id> incId = new set<Id>();
  
   List<Incident__c> incList = new List<Incident__c>();
   List<Incident__c> incheckUpdateList = new List<Incident__c>();
   List<Incident__c> inUncheckUpdateList = new List<Incident__c>();
   
   
  
  
   
   for(Task__c tsk : trigger.new){
      incId.add(tsk.Incident__c);
   }
   
   List<Incident__c> incd = [Select Id, Name, Task_Updated__c, (Select Id, Name, Task_Updated__c from Tasks__r where Task_Updated__c = true) from Incident__c where Id =:incId];
   for(Incident__c ind : incd){
     if(ind.Tasks__r.size()>0){
       ind.Task_Updated__c = true;
       incheckUpdateList.add(ind); 
     } 
     else{
       ind.Task_Updated__c = false;
       incheckUpdateList.add(ind);
     }
      
   }
   if(incheckUpdateList != null)
   Database.SaveResult[] srlist = Database.update(incheckUpdateList,false);
  
    
    
}
Best Answer chosen by balakrishna mandula 8
Amit Chaudhary 8Amit Chaudhary 8
@isTest 
public class UpdateInc_On_update_TaskTest 
{
    static testMethod void testMethod1() 
	{
        // Please add all required field
		Incident__c incdentObj = new Incident__c();
		incdentObj.Name='TestName';
		incdentObj.Task_Updated__c= true;
		insert incdentObj;
	

      // Please add all required field
		Task__c taskObj = new Task__c();
		taskObj.Task_Updated__c= true;
		taskObj.Name='Test Task';
		taskObj.Incident__c = incdentObj.id;
		insert taskObj;
		
		Test.StartTest(); 
			taskObj.Name ='TestTask1';
			update taskObj;
		Test.StopTest();
		
    }
}

Please let us know if this will help you

All Answers

ManojjenaManojjena
Hi Bankrishna,

Try with below code .
@isTest
public class  Update_On_Update_TaskTest{
	public static testMethod void unitTest(){
		Incident__c  incd=new Incident__c();
		incd.Name='Test';
		incd.Task_Updated__c=true;
		   insert incd;

		Task__c tsk=new Task__c();
			tsk..Incident__c=incd.Id;
			tsk.Name='TestTask';
			tsk.Task_Updated__c=true;
			insert tsk;
			update tsk;
       }
}

Let me know if it helps !!
Thanks 
Manoj
Amit Chaudhary 8Amit Chaudhary 8

Please check more on test classes on below blog
http://amitsalesforce.blogspot.in/2015/06/best-practice-for-test-classes-sample.html
Please try below code :-
@isTest 
public class UpdateInc_On_update_TaskTest 
{
    static testMethod void testMethod1() 
	{
        // Please add all required field
		Incident__c incdentObj = new Incident__c();
		incdentObj.Name='TestName';
		incdentObj.Task_Updated__c= true;
		insert incdentObj;
	

      // Please add all required field
		Task__c taskObj = new Task__c();
		taskObj.Task_Updated__c= true;
		taskObj.Name='Test Task';
		insert taskObj;
		
		Test.StartTest(); 
			taskObj.Name ='TestTask1';
			update taskObj;
		Test.StopTest();
		
    }
}

Please follow below salesforce Best Practice for Test Classes :-

1. Test class must start with @isTest annotation if class class version is more than 25
2. Test environment support @testVisible , @testSetUp as well
3. Unit test is to test particular piece of code working properly or not .
4. Unit test method takes no argument ,commit no data to database ,send no email ,flagged with testMethod keyword .
5. To deploy to production at-least 75% code coverage is required 
6. System.debug statement are not counted as a part of apex code limit.
7. Test method and test classes are not counted as a part of code limit
9. We should not focus on the  percentage of code coverage ,we should make sure that every use case should covered including positive, negative,bulk and single record .
Single Action -To verify that the the single record produces the correct an expected result .
Bulk action -Any apex record trigger ,class or extension must be invoked for 1-200 records .
Positive behavior : Test every expected behavior occurs through every expected permutation , i,e user filled out every correctly data and not go past the limit .
Negative Testcase :-Not to add future date , Not to specify negative amount.
Restricted User :-Test whether a user with restricted access used in your code .10. Test class should be annotated with @isTest .
11 . @isTest annotation with test method  is equivalent to testMethod keyword .
12. Test method should static and no void return type .
13. Test class and method default access is private ,no matter to add access specifier .
14. classes with @isTest annotation can't be a interface or enum .
15. Test method code can't be invoked by non test request .
16. Stating with salesforce API 28.0 test method can not reside inside non test classes .
17. @Testvisible annotation to make visible private methods inside test classes.
18. Test method can not be used to test web-service call out . Please use call out mock .
19. You can't  send email from test method.
20.User, profile, organization, AsyncApexjob, Corntrigger, RecordType, ApexClass, ApexComponent ,ApexPage we can access without (seeAllData=true) .
21. SeeAllData=true will not work for API 23 version eailer .
22. Accessing static resource test records in test class e,g List<Account> accList=Test.loadData(Account,SobjectType,'ResourceName').
23. Create TestFactory class with @isTest annotation to exclude from organization code size limit .
24. @testSetup to create test records once in a method  and use in every test method in the test class .
25. We can run unit test by using Salesforce Standard UI,Force.com IDE ,Console ,API.
26. Maximum number of test classes run per 24 hour of period is  not grater of 500 or 10 multiplication of test classes of your organization.
27. As apex runs in system mode so the permission and record sharing are not taken into account . So we need to use system.runAs to enforce record sharing .
28. System.runAs will not enforce user permission or field level permission .
29. Every test to runAs count against the total number of DML issued in the process .


Please let us know if this post will help you


 
Amit Chaudhary 8Amit Chaudhary 8
@isTest 
public class UpdateInc_On_update_TaskTest 
{
    static testMethod void testMethod1() 
	{
        // Please add all required field
		Incident__c incdentObj = new Incident__c();
		incdentObj.Name='TestName';
		incdentObj.Task_Updated__c= true;
		insert incdentObj;
	

      // Please add all required field
		Task__c taskObj = new Task__c();
		taskObj.Task_Updated__c= true;
		taskObj.Name='Test Task';
		taskObj.Incident__c = incdentObj.id;
		insert taskObj;
		
		Test.StartTest(); 
			taskObj.Name ='TestTask1';
			update taskObj;
		Test.StopTest();
		
    }
}

Please let us know if this will help you
This was selected as the best answer
balakrishna mandula 8balakrishna mandula 8
Thanks Amit

But on the  taskObj.Incident__c = incdentObj.id; 

Incident__c is formula feld for Task obect. it's giving error "Field is not writeable: Task__c.Incident__c"

could you pls help me on this
ManojjenaManojjena
Hi Balkrishna,

You need to replace the relationship field APi with incident __c .
balakrishna mandula 8balakrishna mandula 8
Thanks a lot Manoj and Amit for your help. It's working fine.
guna malliguna malli
How to write test class for this trigger

Here S__c different object, and R__c is different object in between no relationship
but S__c have this fields like A__c,B__c,C__c. same like that R__c have same fields
when ever S__c "status" have aprroved i want update the R__c "status" field completed

trigger Sname  on  S__c (after update) {
     for(S__c  s : Trigger.new){
        if(s.Status__c == 'Approved'){
       
            R__c  R = [select id,Status__c from R__c where (A__c =: s.A__c and  B__c =: s.B__c and C__c =: s.C__c)];
            R.Status__c ='Completed';
            update R;
          
        }
    }
}