def assertIsNotNone(self, x):
        if x is None:
            raise AssertionError("{} is None".format(x))
Consume tokens until one matches the given token or token set
dataset/ETHPy150Open ga4gh/server/tests/datadriven/__init__.py/TestCase.assertIsNotNone--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/antlr3/antlr3/recognizers.py/BaseRecognizer.consumeUntil