@isTest
private class CampaignMemberInsertTest {
   private static testMethod void testUpdateCM() {
     

    Test.startTest();
    Account acct = new Account (Name = 'Acme, Inc.');
    insert acct;
    system.debug('Inserted Account, ID: ' + acct.id);

    Contact con = new Contact(
                      FirstName = 'Robin',
                      LastName = 'Koehler',
                      AccountId = acct.Id
                      );
    insert con;   
	
	
	Contact con1 = new Contact(
                      FirstName = 'Robin',
                      LastName = 'Koehler',
                      AccountId = acct.Id
                      );
    insert con1;  
    
    Campaign camp = new Campaign(
                        Name = 'Test',
                        IsActive = TRUE
                        );            
    insert camp;
	
	
	 Campaign camp1 = new Campaign(
                        Name = 'Test',
                        IsActive = TRUE
                        );            
    insert camp1;
 
    CampaignMember member = new CampaignMember(
        ContactId = con.Id,
        Status = 'sent',
        CampaignId = camp.Id
        ); 
    insert member; 
   

    CampaignMember member1 = new CampaignMember(
        ContactId = con1.Id,
        Status = 'sent',
        CampaignId = camp1.Id
        ); 
    insert member1; 
   member1.Status = 'responded';
   update member1 ; 
   
   member.Status = 'responded';
   update member ; 
   
   delete mebmer ;
   
Test.stopTest();           
 
    }
}