def get_light_storage(self, backend: str,
options: Dict[str, Any]) -> LightStorage:
"""
Create a light storage instance.
:param backend: A fully qualified name of the backend class.
:param options: The options to pass to the backend.
:return: A light storage instance.
"""
return import_from_module(backend)(**options)
def get_auxiliary_storage(backend: str,
options: Dict[str, Any]) -> AuxiliaryStorage:
"""
Create an auxiliary storage instance.
:param backend: A fully qualified name of the backend class.
:param options: The options to pass to the backend.
:return: An auxiliary storage instance.
"""
return import_from_module(backend)(**options)
def test_import_from_module_invalid_name(self):
with self.assertRaisesMessage(
ValueError, "Invalid fully qualified name: 'OnlyClassName'."):
import_from_module('OnlyClassName')
def test_import_from_module_member_not_found(self):
with self.assertRaisesMessage(
ImportError,
'ThisClassDoesNotExist not found in http.server.'):
import_from_module('http.server.ThisClassDoesNotExist')
def test_import_from_module(self):
result = import_from_module('http.server.HTTPServer')
from http.server import HTTPServer
self.assertIs(result, HTTPServer)