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from importlib import machinery
import sys
import types
import unittest
import warnings
from test.test_importlib import util
class SpecLoaderMock:
def find_spec(self, fullname, path=None, target=None):
return machinery.ModuleSpec(fullname, self)
def create_module(self, spec):
return None
def exec_module(self, module):
pass
class SpecLoaderAttributeTests:
def test___loader__(self):
loader = SpecLoaderMock()
with util.uncache('blah'), util.import_state(meta_path=[loader]):
module = self.__import__('blah')
self.assertEqual(loader, module.__loader__)
(Frozen_SpecTests,
Source_SpecTests
) = util.test_both(SpecLoaderAttributeTests, __import__=util.__import__)
class LoaderMock:
def find_module(self, fullname, path=None):
return self
def load_module(self, fullname):
sys.modules[fullname] = self.module
return self.module
class LoaderAttributeTests:
def test___loader___missing(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore", ImportWarning)
module = types.ModuleType('blah')
try:
del module.__loader__
except AttributeError:
pass
loader = LoaderMock()
loader.module = module
with util.uncache('blah'), util.import_state(meta_path=[loader]):
module = self.__import__('blah')
self.assertEqual(loader, module.__loader__)
def test___loader___is_None(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore", ImportWarning)
module = types.ModuleType('blah')
module.__loader__ = None
loader = LoaderMock()
loader.module = module
with util.uncache('blah'), util.import_state(meta_path=[loader]):
returned_module = self.__import__('blah')
self.assertEqual(loader, module.__loader__)
(Frozen_Tests,
Source_Tests
) = util.test_both(LoaderAttributeTests, __import__=util.__import__)
if __name__ == '__main__':
unittest.main()
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