class RSpec::Mocks::InstanceVerifyingDouble

@private
given class.
method stubs or expectations against the public instance methods of the
A mock providing a custom proxy that can verify the validity of any

def __build_mock_proxy(order_group) 

def __build_mock_proxy(order_group)
  VerifyingProxy.new(self, order_group,
                     @doubled_module,
                     InstanceMethodReference
  )
end