In the last three test, in context "#get_by_name" : 

The expectation can be made more strict by:
 
- asserting that Vcloud::Query was called with right set of arguments.
- assertion should test that the output of Vcloud::Query is further return by Vapp. ```expect(obj.class).to be(Vcloud::Core::Vapp)``` checks that the return type is Vapp. but we should check that it should have correct query results. This test would pass even if i return ```Vapp.new("some-valid-id")``` in code.