Test class error

Hi ,

Good day!

I'm facing an error when I'm running a test class.

Error:- System.DmlException: Insert failed. First exception on row 0; first error: FIELD_INTEGRITY_EXCEPTION, field integrity exception: PricebookEntryId (pricebook entry is in a different pricebook than the one assigned to the opportunity): [PricebookEntryId]

Stack Trace:-Class.test_EntitlementUtil.test_EntitlementUtil: line 46, column 1

Code:-

@isTest(seealldata=true)

public class test_EntitlementUtil{

     static testMethod void test_EntitlementUtil (){

    test.startTest();

                Account a = new Account(Name = 'Test Opp',Email_Domain__c = 'samarth.com',Website='www.cb.com',BillingStreet = 'Test Street',BillingState='Assam',BillingCountry = 'India',CurrencyISOCode = 'USD');

                insert a;

                Pricebook2 pb = [select Id from Pricebook2 where IsStandard = true limit 1];

                Product2 p = new Product2(Name = 'CBSVC', isActive = true);

                insert p;

                PricebookEntry pbe = new PricebookEntry(Pricebook2Id = pb.Id, Product2Id = p.Id, UnitPrice = 1, isActive = true);

                insert pbe;

                //create a new opp

                 Opportunity o = new Opportunity(Name = 'Test Opp',

                    AccountId = a.id,

                    CloseDate = date.today(),

                    StageName = '1 - Closed Won',

                    Win_Summary__c = 'test',

                    LeadSource='Community',

                    //Use_Case1__c = 'Profile Management',

                   // Customer_Support_Contact_Email__c = 'sudhirn@sudhir.com',

                    PriceBook2Id = pb.Id,

                    Close_Reason__c = 'test'

                    //Loss_Summary__c = 'test'                                       

                    );

                insert o; 

               Opportunitylineitem qli = new Opportunitylineitem(

                              opportunityid = o.id,

                              PriceBookEntryId = pbe.Id, 

                              Quantity = 1, 

                              UnitPrice = 500,

                              Discount_Percent__c = 29,

                              Subscription_Terms__c = 1,

                              Number_of_Nodes__c = 10,

                              NS_Start_Date__c = Date.Today() - 10,

                              NS_End_Date__c = Date.Today()

                            );

               insert qli;

                entitlement e = new entitlement(name = 'sudhirent', 

                                                Opportunity__c = o.id,

                                                accountid=a.id,

                                                StartDate = date.today() - 10,

                                                EndDate =  date.today() );                          

                insert e;

                list<entitlement> ent = [select Opportunity__c,StartDate,EndDate from Entitlement where Opportunity__c = :o.id]; 

                for( entitlement gent : ent )

                 {

                  gent.StartDate = o.NS_Start_Date_Min__c;

                  gent.EndDate = o.NS_End_Date_Max__c;

                   update gent;

                 } 

            //EntitlementUtil myTC = new EntitlementUtil();

     Test.stopTest();   

} 

}

Please help me.

Thanks in advance...

Regards,

Srinivas

@* Salesforce Developers *