def and_then(self, text):
        index = self.testcase.asm[self.start:].find(text)
        if index is not 0:
            self.start += index + len(text)
            self.last = text
        else:
            print(self.testcase.asm)
            raise(
                AssertionError('"%s" was not found after "%s" in code' %
                               (text, self.last)))
        return self
dataset/ETHPy150Open gutomaia/pyNES/pynes/tests/__init__.py/WhatElse.and_then/operator `>` -> `is not`