'Test empty name in case no specs are specified'

def qos_test_empty_name_if_no_specs(self):

    driver = mock.MagicMock()
    driver.VERSION = 'VERSION'
    p = self.proxy(self.default_storage_info, mock.MagicMock(), test_mock.cinder.exception, driver)
    perf_name = p._check_perf_class_on_backend({})
    self.assertEqual('', perf_name)
