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863a0bd515
gh-120242: Fix handling of `[setUp,tearDown]Class` in `test_datetime` (GH-120243)
(cherry picked from commit 95f4db88d5)
Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
67 lines
2.7 KiB
Python
67 lines
2.7 KiB
Python
import unittest
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import sys
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import functools
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from test.support.import_helper import import_fresh_module
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TESTS = 'test.datetimetester'
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def load_tests(loader, tests, pattern):
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try:
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pure_tests = import_fresh_module(TESTS,
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fresh=['datetime', '_pydatetime', '_strptime'],
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blocked=['_datetime'])
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fast_tests = import_fresh_module(TESTS,
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fresh=['datetime', '_strptime'],
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blocked=['_pydatetime'])
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finally:
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# XXX: import_fresh_module() is supposed to leave sys.module cache untouched,
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# XXX: but it does not, so we have to cleanup ourselves.
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for modname in ['datetime', '_datetime', '_strptime']:
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sys.modules.pop(modname, None)
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test_modules = [pure_tests, fast_tests]
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test_suffixes = ["_Pure", "_Fast"]
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# XXX(gb) First run all the _Pure tests, then all the _Fast tests. You might
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# not believe this, but in spite of all the sys.modules trickery running a _Pure
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# test last will leave a mix of pure and native datetime stuff lying around.
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for module, suffix in zip(test_modules, test_suffixes):
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test_classes = []
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for name, cls in module.__dict__.items():
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if not isinstance(cls, type):
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continue
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if issubclass(cls, unittest.TestCase):
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test_classes.append(cls)
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elif issubclass(cls, unittest.TestSuite):
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suit = cls()
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test_classes.extend(type(test) for test in suit)
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test_classes = sorted(set(test_classes), key=lambda cls: cls.__qualname__)
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for cls in test_classes:
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cls.__name__ += suffix
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cls.__qualname__ += suffix
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@functools.wraps(cls, updated=())
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class Wrapper(cls):
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@classmethod
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def setUpClass(cls_, module=module):
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cls_._save_sys_modules = sys.modules.copy()
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sys.modules[TESTS] = module
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sys.modules['datetime'] = module.datetime_module
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if hasattr(module, '_pydatetime'):
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sys.modules['_pydatetime'] = module._pydatetime
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sys.modules['_strptime'] = module._strptime
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super().setUpClass()
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@classmethod
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def tearDownClass(cls_):
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super().tearDownClass()
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sys.modules.clear()
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sys.modules.update(cls_._save_sys_modules)
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tests.addTests(loader.loadTestsFromTestCase(Wrapper))
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return tests
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if __name__ == "__main__":
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unittest.main()
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