self = <astropy.units.tests.test_quantity_array_methods.TestQuantityReshapeFuncs object at 0x415d6d9128>

    @pytest.mark.xfail(IS_S390X and NUMPY_LT_1_22, reason="Numpy GitHub Issue 19153")
    def test_flat_attributes(self):
        """While ``flat`` doesn't make a copy, it changes the shape."""
        q = np.arange(6.).reshape(3, 1, 2) * u.m
        qf = q.flat
        # see TestQuantityArrayCopy.test_flat for tests of iteration
        # and slicing and setting. Here we test the properties and methods to
        # match `numpy.ndarray.flatiter`
        assert qf.base is q
        # testing the indices -- flat and full -- into the array
        assert qf.coords == (0, 0, 0)  # to start
        assert qf.index == 0
        # now consume the iterator
        endindices = [(qf.index, qf.coords) for x in qf][-2]  # next() oversteps
>       assert endindices[0] == 5
E       assert 0 == 5

astropy/units/tests/test_quantity_array_methods.py:143: AssertionError

xfail(sys.byteorder == 'big' and NUMPY_LT_1_22)