def _create_host_instance_with(self, host_controller_class): mock_host_controller = self.mox.CreateMock(host_controller_class) mock_host_controller.feedback = self.mox.CreateMock(ExecutionFeedback) self.mox.ReplayAll() return VirtualEnvDeploymentHost.create_with(self.virtualenv_installer_config, mock_host_controller)