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import unittest
import sys
import functools
from test.support.import_helper import import_fresh_module
TESTS = 'test.datetimetester'
def load_tests(loader, tests, pattern):
try:
pure_tests = import_fresh_module(TESTS,
fresh=['datetime', '_pydatetime', '_strptime'],
blocked=['_datetime'])
fast_tests = import_fresh_module(TESTS,
fresh=['datetime', '_strptime'],
blocked=['_pydatetime'])
finally:
# XXX: import_fresh_module() is supposed to leave sys.module cache untouched,
# XXX: but it does not, so we have to cleanup ourselves.
for modname in ['datetime', '_datetime', '_strptime']:
sys.modules.pop(modname, None)
test_modules = [pure_tests, fast_tests]
test_suffixes = ["_Pure", "_Fast"]
# XXX(gb) First run all the _Pure tests, then all the _Fast tests. You might
# not believe this, but in spite of all the sys.modules trickery running a _Pure
# test last will leave a mix of pure and native datetime stuff lying around.
for module, suffix in zip(test_modules, test_suffixes):
test_classes = []
for name, cls in module.__dict__.items():
if not isinstance(cls, type):
continue
if issubclass(cls, unittest.TestCase):
test_classes.append(cls)
elif issubclass(cls, unittest.TestSuite):
suit = cls()
test_classes.extend(type(test) for test in suit)
test_classes = sorted(set(test_classes), key=lambda cls: cls.__qualname__)
for cls in test_classes:
cls.__name__ += suffix
cls.__qualname__ += suffix
@functools.wraps(cls, updated=())
class Wrapper(cls):
@classmethod
def setUpClass(cls_, module=module):
cls_._save_sys_modules = sys.modules.copy()
sys.modules[TESTS] = module
sys.modules['datetime'] = module.datetime_module
if hasattr(module, '_pydatetime'):
sys.modules['_pydatetime'] = module._pydatetime
sys.modules['_strptime'] = module._strptime
super().setUpClass()
@classmethod
def tearDownClass(cls_):
super().tearDownClass()
sys.modules.clear()
sys.modules.update(cls_._save_sys_modules)
tests.addTests(loader.loadTestsFromTestCase(Wrapper))
return tests
if __name__ == "__main__":
unittest.main()
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