cpython/Lib/test/test_importlib/builtin/test_finder.py

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from .. import abc
from .. import util
machinery = util.import_importlib('importlib.machinery')
import sys
import unittest
@unittest.skipIf(util.BUILTINS.good_name is None, 'no reasonable builtin module')
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class FindSpecTests(abc.FinderTests):
"""Test find_spec() for built-in modules."""
def test_module(self):
# Common case.
with util.uncache(util.BUILTINS.good_name):
found = self.machinery.BuiltinImporter.find_spec(util.BUILTINS.good_name)
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self.assertTrue(found)
self.assertEqual(found.origin, 'built-in')
# Built-in modules cannot be a package.
test_package = None
# Built-in modules cannot be in a package.
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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(util.BUILTINS.good_name):
spec = self.machinery.BuiltinImporter.find_spec(util.BUILTINS.good_name,
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['pkg'])
self.assertIsNone(spec)
(Frozen_FindSpecTests,
Source_FindSpecTests
) = util.test_both(FindSpecTests, machinery=machinery)
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@unittest.skipIf(util.BUILTINS.good_name is None, 'no reasonable builtin module')
class FinderTests(abc.FinderTests):
"""Test find_module() for built-in modules."""
def test_module(self):
# Common case.
with util.uncache(util.BUILTINS.good_name):
found = self.machinery.BuiltinImporter.find_module(util.BUILTINS.good_name)
self.assertTrue(found)
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self.assertTrue(hasattr(found, 'load_module'))
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# Built-in modules cannot be a package.
test_package = test_package_in_package = test_package_over_module = None
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# 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')
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self.assertIsNone(loader)
def test_ignore_path(self):
# The value for 'path' should always trigger a failed import.
with util.uncache(util.BUILTINS.good_name):
loader = self.machinery.BuiltinImporter.find_module(util.BUILTINS.good_name,
['pkg'])
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self.assertIsNone(loader)
(Frozen_FinderTests,
Source_FinderTests
) = util.test_both(FinderTests, machinery=machinery)
if __name__ == '__main__':
unittest.main()