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文件: /usr/lib/python3/dist-packages/twisted/trial/test/weird.py
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import unittest from twisted.internet import defer # Used in test_tests.UnhandledDeferredTests class TestBleeding(unittest.TestCase): """This test creates an unhandled Deferred and leaves it in a cycle. The Deferred is left in a cycle so that the garbage collector won't pick it up immediately. We were having some problems where unhandled Deferreds in one test were failing random other tests. (See #1507, #1213) """ def test_unhandledDeferred(self): try: 1 / 0 except ZeroDivisionError: f = defer.fail() # these two lines create the cycle. don't remove them l = [f] l.append(l)
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