def testMessageID(self):
        d = {}
        for i in range(1000):
            m = smtp.messageid('testcase')
            self.failIf(m in d)
            d[m] = None
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/mail/test/test_smtp.py/SMTPHelperTestCase.testMessageID/original