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66 lines
2.3 KiB
66 lines
2.3 KiB
# We can monkey-patch in a thread, but things don't work as expected.
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from __future__ import print_function
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import sys
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import threading
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from gevent import monkey
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import gevent.testing as greentest
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class Test(greentest.TestCase):
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@greentest.ignores_leakcheck # can't be run multiple times
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def test_patch_in_thread(self):
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all_warnings = []
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try:
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get_ident = threading.get_ident
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except AttributeError:
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get_ident = threading._get_ident
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def process_warnings(warnings):
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all_warnings.extend(warnings)
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monkey._process_warnings = process_warnings
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current = threading.current_thread()
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current_id = get_ident()
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def target():
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tcurrent = threading.current_thread()
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monkey.patch_all()
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tcurrent2 = threading.current_thread()
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self.assertIsNot(tcurrent, current)
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# We get a dummy thread now
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self.assertIsNot(tcurrent, tcurrent2)
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thread = threading.Thread(target=target)
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thread.start()
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try:
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thread.join()
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except: # pylint:disable=bare-except
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# XXX: This can raise LoopExit in some cases.
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greentest.reraiseFlakyTestRaceCondition()
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self.assertNotIsInstance(current, threading._DummyThread)
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self.assertIsInstance(current, monkey.get_original('threading', 'Thread'))
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# We generated some warnings
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if sys.version_info >= (3, 4):
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self.assertEqual(all_warnings,
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['Monkey-patching outside the main native thread. Some APIs will not be '
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'available. Expect a KeyError to be printed at shutdown.',
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'Monkey-patching not on the main thread; threading.main_thread().join() '
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'will hang from a greenlet'])
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else:
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self.assertEqual(all_warnings,
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['Monkey-patching outside the main native thread. Some APIs will not be '
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'available. Expect a KeyError to be printed at shutdown.'])
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# Manual clean up so we don't get a KeyError
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del threading._active[current_id]
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threading._active[(getattr(threading, 'get_ident', None) or threading._get_ident)()] = current
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if __name__ == '__main__':
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greentest.main()
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