I am able to save the code, when i run the test class,it gives the error - 0/1 test methods passedPlease help..Controller class--------------------public without sharing class ClsCustomController{ public List<myCustomObject__c> mylist{get; set;} public myCustomObject__c myObject{get;set;} public Id myId{get;set;} public ClsCustomController(){ myId = ApexPages.currentPage().getParameters().get('id'); mylist = [select ID,Link__c,Product__c,Hierarchy_Name__c ,Item_Position__c,Primary_Product_Group__c , Probability__c ,Quantity__c , NetPrice__c,LineStatus__c , Validated__c,Line_Item_Id__c from myCustomObject__c where Proposal__c =: myId]; } public ClsCustomController(ApexPages.StandardController controller){ qte = (myCustomObject__c)controller.getRecord(); mylist = [select ID,Link__c,Product__c,Hierarchy_Name__c ,Item_Position__c,Primary_Product_Group__c , Probability__c ,Quantity__c , NetPrice__c,LineStatus__c , Validated__c,Line_Item_Id__c from myCustomObject__c where Proposal__c =: myId]; }}---------------------------------------------------------------------------------------test class ----------------@isTest(SeeAllData=true)public class ClsCustomController {static testMethod void ClsCustomController() {myCustomObject__c myObject = new myCustomObject__c(); myObject.id = propSO.id; myObject.Hierarchy_Name__c = 'Indoor SF6-Insulated Load Break Switch GSec'; myObject.Item_Position__c ='1'; myObject.Primary_Product_Group__c = true; myObject.Probability__c =Decimal.valueOf(30); myObject.Quantity2__c =Decimal.valueOf(30); myObject.NetPrice__c =Decimal.valueOf(1000); myObject.LineStatus__c = 'Open'; myObject.Validated__c = true; myObject.DerivedFromId__c = 'a2X25000004rSPuEAM'; insert proposalLineItem; Test.startTest(); PageReference pageRef = Page.VFCustomController;Test.setCurrentPage(pageRef);pageRef.getParameters().put('id',myObject.id); ApexPages.StandardController sc = new ApexPages.StandardController(myObject); ClsCustomController myClass = new ClsCustomController(sc);ClsCustomController myClass1 = new ClsCustomController();Test.stopTest(); }}