Hi Guys,

I have developed a trigger to update parent record when a child record is changed.

here is the trigger for that:



trigger Updateoffercomms on pba__Closing__c (after update) 
{   if(Trigger.IsUpdate)  
 {            Set<String> offerids= new Set<String>();                
 for (pba__Closing__c cl : Trigger.new)      
      {       
       if( (cl.Run_Updateoffercomms__c != Trigger.oldMap.get(cl.Id).Run_Updateoffercomms__c))         
           {                    if(cl.Run_Updateoffercomms__c == true)           
                                    offerids.add(cl.pba__Offer__c);                
             }
  }            List<pba__Offer__c> offers= [SELECT Id,First_Commission__c, first_Commission_Date__c,Second_Commission__c,Gross_Commission__c FROM pba__Offer__c WHERE Id =: offerids];        
 Map<String, pba__Closing__c> cprmap = new Map<String, pba__Closing__c>();        

for (pba__Closing__c cl : Trigger.new)
{                         
 cprmap.put(cl.pba__Offer__c, cl);         
}                           
       for (pba__Offer__c o : offers)      
          {       
             if (cprmap.containsKey(o.Id))       
                   {                        
                      o.First_Commission__c  =  cprmap.get(o.Id).X1st_Commission_Amount_payable__c;                        o.first_Commission_Date__c = cprmap.get(o.Id).Date_when_Contract_went_unconditional__c;         o.Second_Commission__c = cprmap.get(o.Id).X2nd_Commission_amount_payable__c;       o.Gross_Commission__c = cprmap.get(o.Id).Gross_Commission_Available__c;                                  
}   
  }   
update offers;  
 }
}


and the test class for this is :

@isTest
private class Mycprtest2
{

    static testMethod void cprtriggertest2()
    {
    
    contact c = new Contact(FirstName = 'Yams1', LastName = 'Bat');
    insert c;
    pba__Listing__c L = new pba__Listing__c(RecordTypeId = '01290000000rIhl',Name = 'tess3' , pba__Address_pb__c = '66 cotterell rd' ,pba__City_pb__c = 'Petrie');
    insert L;
    pba__Offer__c o = new pba__Offer__c(pba__Listing__c = L.id ,pba__Contact__c = c.id);
    date dtend = Date.newInstance(2015, 31 , 03);
     pba__Closing__c cl = new pba__Closing__c(pba__Offer__c = o.id);
        insert cl;
        cl.Run_Updateoffercomms__c = true;
        cl.X1st_Commission_Amount_payable__c = 90;
        cl.X2nd_Commission_amount_payable__c = 68;
        cl.Gross_Commission_Available__c = 78909;
        cl.Date_when_Contract_went_unconditional__c = dtend;
        
  update cl;
 
       
}
}

The problem here is my trigger is only getting 68% coverage. Any ways to improve it?
Any help is greatly appreciated.

Thanks in advance.