def __len__(self):
        return self._nzoom
Unlike the standard assertRaises, this checks that a function raises a
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/gis/maps/google/zoom.py/GoogleZoom.__len__--crossover with--dataset/ETHPy150Open mongodb/mongo-python-driver/test/utils.py/assertRaisesExactly