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from .. import abc
from .. import util
from . import util as builtin_util
frozen_machinery, source_machinery = util.import_importlib('importlib.machinery')
import sys
import unittest
class FindSpecTests(abc.FinderTests):
"""Test find_spec() for built-in modules."""
def test_module(self):
# Common case.
with util.uncache(builtin_util.NAME):
found = self.machinery.BuiltinImporter.find_spec(builtin_util.NAME)
self.assertTrue(found)
self.assertEqual(found.origin, 'built-in')
# Built-in modules cannot be a package.
test_package = None
# Built-in modules cannobt be in a package.
test_module_in_package = None
# Built-in modules cannot be a package.
test_package_in_package = None
# Built-in modules cannot be a package.
test_package_over_module = None
def test_failure(self):
name = 'importlib'
assert name not in sys.builtin_module_names
spec = self.machinery.BuiltinImporter.find_spec(name)
self.assertIsNone(spec)
def test_ignore_path(self):
# The value for 'path' should always trigger a failed import.
with util.uncache(builtin_util.NAME):
spec = self.machinery.BuiltinImporter.find_spec(builtin_util.NAME,
['pkg'])
self.assertIsNone(spec)
Frozen_FindSpecTests, Source_FindSpecTests = util.test_both(FindSpecTests,
machinery=[frozen_machinery, source_machinery])
class FinderTests(abc.FinderTests):
"""Test find_module() for built-in modules."""
def test_module(self):
# Common case.
with util.uncache(builtin_util.NAME):
found = self.machinery.BuiltinImporter.find_module(builtin_util.NAME)
self.assertTrue(found)
self.assertTrue(hasattr(found, 'load_module'))
# Built-in modules cannot be a package.
test_package = test_package_in_package = test_package_over_module = None
# Built-in modules cannot be in a package.
test_module_in_package = None
def test_failure(self):
assert 'importlib' not in sys.builtin_module_names
loader = self.machinery.BuiltinImporter.find_module('importlib')
self.assertIsNone(loader)
def test_ignore_path(self):
# The value for 'path' should always trigger a failed import.
with util.uncache(builtin_util.NAME):
loader = self.machinery.BuiltinImporter.find_module(builtin_util.NAME,
['pkg'])
self.assertIsNone(loader)
Frozen_FinderTests, Source_FinderTests = util.test_both(FinderTests,
machinery=[frozen_machinery, source_machinery])
if __name__ == '__main__':
unittest.main()