| 1 | n/a | from importlib import machinery |
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| 2 | n/a | from . import util as ext_util |
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| 3 | n/a | from .. import abc |
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| 4 | n/a | from .. import util |
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| 5 | n/a | |
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| 6 | n/a | import sys |
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| 7 | n/a | import unittest |
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| 8 | n/a | |
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| 9 | n/a | |
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| 10 | n/a | class LoaderTests(abc.LoaderTests): |
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| 11 | n/a | |
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| 12 | n/a | """Test load_module() for extension modules.""" |
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| 13 | n/a | |
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| 14 | n/a | def setUp(self): |
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| 15 | n/a | self.loader = machinery.ExtensionFileLoader(ext_util.NAME, |
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| 16 | n/a | ext_util.FILEPATH) |
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| 17 | n/a | |
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| 18 | n/a | def load_module(self, fullname): |
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| 19 | n/a | return self.loader.load_module(fullname) |
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| 20 | n/a | |
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| 21 | n/a | def test_load_module_API(self): |
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| 22 | n/a | # Test the default argument for load_module(). |
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| 23 | n/a | self.loader.load_module() |
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| 24 | n/a | self.loader.load_module(None) |
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| 25 | n/a | with self.assertRaises(ImportError): |
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| 26 | n/a | self.load_module('XXX') |
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| 27 | n/a | |
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| 28 | n/a | |
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| 29 | n/a | def test_module(self): |
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| 30 | n/a | with util.uncache(ext_util.NAME): |
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| 31 | n/a | module = self.load_module(ext_util.NAME) |
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| 32 | n/a | for attr, value in [('__name__', ext_util.NAME), |
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| 33 | n/a | ('__file__', ext_util.FILEPATH), |
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| 34 | n/a | ('__package__', '')]: |
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| 35 | n/a | self.assertEqual(getattr(module, attr), value) |
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| 36 | n/a | self.assertIn(ext_util.NAME, sys.modules) |
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| 37 | n/a | self.assertIsInstance(module.__loader__, |
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| 38 | n/a | machinery.ExtensionFileLoader) |
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| 39 | n/a | |
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| 40 | n/a | def test_package(self): |
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| 41 | n/a | # Extensions are not found in packages. |
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| 42 | n/a | pass |
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| 43 | n/a | |
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| 44 | n/a | def test_lacking_parent(self): |
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| 45 | n/a | # Extensions are not found in packages. |
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| 46 | n/a | pass |
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| 47 | n/a | |
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| 48 | n/a | def test_module_reuse(self): |
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| 49 | n/a | with util.uncache(ext_util.NAME): |
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| 50 | n/a | module1 = self.load_module(ext_util.NAME) |
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| 51 | n/a | module2 = self.load_module(ext_util.NAME) |
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| 52 | n/a | self.assertIs(module1, module2) |
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| 53 | n/a | |
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| 54 | n/a | def test_state_after_failure(self): |
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| 55 | n/a | # No easy way to trigger a failure after a successful import. |
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| 56 | n/a | pass |
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| 57 | n/a | |
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| 58 | n/a | def test_unloadable(self): |
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| 59 | n/a | name = 'asdfjkl;' |
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| 60 | n/a | with self.assertRaises(ImportError) as cm: |
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| 61 | n/a | self.load_module(name) |
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| 62 | n/a | self.assertEqual(cm.exception.name, name) |
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| 63 | n/a | |
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| 64 | n/a | |
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| 65 | n/a | def test_main(): |
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| 66 | n/a | from test.support import run_unittest |
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| 67 | n/a | run_unittest(LoaderTests) |
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| 68 | n/a | |
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| 69 | n/a | |
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| 70 | n/a | if __name__ == '__main__': |
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| 71 | n/a | test_main() |
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