def assertData(self, key, value, request=-1):
        try:
            request = self.server.requests[request]
        except __HOLE__:
            raise AssertionError('Cannot assert data without request')
        self.assertIn(value, request.data.getvalue(key, []))
dataset/ETHPy150Open smartfile/client-python/tests.py/TestServerTestCase.assertData