Method _check_inverse_of_slicing

numpy/lib/tests/test_function_base.py:994–1002

(self, indices)

        return a, nd_a

    def _check_inverse_of_slicing(self, indices):
        a, nd_a = self._create_arrays()
        a_del = delete(a, indices)
        nd_a_del = delete(nd_a, indices, axis=1)
        msg = f'Delete failed for obj: {indices!r}'
        assert_array_equal(setxor1d(a_del, a[indices, ]), a,
                           err_msg=msg)
        xor = setxor1d(nd_a_del[0, :, 0], nd_a[0, indices, 0])
        assert_array_equal(xor, nd_a[0, :, 0], err_msg=msg)

    def test_slices(self):
        lims = [-6, -2, 0, 1, 2, 4, 5]