Hi All,

I wrote two class One is Create envelop it is webservice for restful (POST) sending data to third party  application

2nd one is for controller extension for catch that response display it on visualforce page.

I am trying to write a test class for the controller extension but i got this error

System.DmlException: Insert failed. First exception on row 0; first error: ENTITY_IS_DELETED, entity is deleted: []

Class.Test_YesMailExtention.testYesMailExtention: line 23, column 1

my class is

public class YesMailExtention {
    private final Yes_Mail_Master__c master { get ; set; }
    ApexPages.StandardController controller{ get; set ; }
    public String ActiveTab {get; set;} { ActiveTab = '1';}
    public string campaignId { get; set ; }
    public string strMsg { get ; set ; }  
    //public string Existedlist { get; set; }
    public YesMailExtention (ApexPages.StandardController controller) {
        
        campaignId= apexpages.currentpage().getparameters().get('cid');
        
                 
              if ( campaignId <> null) {
                  
                      campaign CampaignRow=[select Id,Name, Campaign_Members__c from campaign where id = '70190000000LJbr'];
                      
                      strMsg = 'Total Campaign Members add to this list is '+ CampaignRow.campaign_members__c ;
                      
                      this.controller = controller;
                      
                      this.master = (Yes_Mail_Master__c)controller.getRecord();
                      
                      this.master.Campaign__c = CampaignId;
           
          } else {

            
                    this.controller = controller;
                    
                    this.master = (Yes_Mail_Master__c)controller.getRecord();
        }
    }
    
      public PageReference nextTab(){
     // this.ActiveTab = 'Content'; 
      this.ActiveTab = String.valueOf(Integer.valueOf(ActiveTab)+1); 
      return null;
     }
     
    public PageReference saveMaster() {
      
       String mmid = CreateMasterEnvelope.postEnvelope(master);
       system.debug('Create envop mmid==========='+ mmid);
       master.MMID__c = mmid;
       //upsert master;
       controller.save();
       PageReference viewPage = this.controller.view();
       viewPage.setRedirect(true);
       return viewPage ;
     }



my testclass code



@isTest
Private class Test_YesMailExtention {

static testMethod void testYesMailExtention() {

//PageReference pageRef = Page.yesmailsend3;
PageReference pageRef =new PageReference('/apex/yesmailsend3?cid=70190000000EBYz');
Test.setCurrentPageReference(pageRef);

Yes_Mail_Master__c lst_yes = new Yes_Mail_Master__c (
       Name='pk_test_1001',
       Description__c='pk_test_1001',
       Subject__c='pk_test_1001',
       Content__c='pk_test_1001',
       Friendly_From__c='pk_test_1001',
       From_Domain__c='email@division1.wstest.com',
       //mmid__c = '123456',
       Campaign__c='70190000000EC3u',
       Delivery_Type__c='Auto-Detect delivery',
       Encoding__c= 'Any Country (UTF-8)',
       Division__c='DivisionOne');
         
        insert lst_yes;
       
       ApexPages.StandardController sc = new ApexPages.standardController(lst_yes);
        YesMailExtention myPageCon = new YesMailExtention (sc);
        
           
        myPageCon.campaignId ='70190000000EC3u';
         myPageCon.strMsg='Total campaign Members is';
          myPageCon.campaignId ='';
        myPageCon.ActiveTab ='1';
    
        ApexPages.StandardController controller=sc;
            myPageCon.controller = sc ;
            myPageCon.SetController(sc);
       
        
        myPageCon.saveMaster();
       
        }
         
        }




can any one can  solve this 
thanks in advance