def testBadAppend(self):
        self.improperAppend(plivohelper.Hangup())
Helper function
dataset/ETHPy150Open plivo/plivohelper-python/tests/test_restxml.py/TestHangup.testBadAppend--crossover with--dataset/ETHPy150Open coursera/dataduct/dataduct/database/tests/test_history_table.py/TestHistoryTable._create_history_table