test_numpy.py 文件源码

def test_exponentiation_array_exp_2(self):
        arr = np.array(range(3), dtype=np.float)
        #q = self.Q_(copy.copy(arr), None)
        q = self.Q_(copy.copy(arr), 'meter')
        arr_cp = copy.copy(arr)
        q_cp = copy.copy(q)
        # this fails as expected since numpy 1.8.0 but...
        self.assertRaises(DimensionalityError, op.pow, arr_cp, q_cp)
        # ..not for op.ipow !
        # q_cp is treated as if it is an array. The units are ignored.
        # _Quantity.__ipow__ is never called
        arr_cp = copy.copy(arr)
        q_cp = copy.copy(q)
        self.assertRaises(DimensionalityError, op.ipow, arr_cp, q_cp)