def METHOD_NAME(self):
    """Test for comparing coordinate between cubes, where the first
    cube in the list has extra dimension coordinates."""
    cube1 = self.cube.copy()
    cube2 = self.cube.copy()
    cube1.add_aux_coord(self.extra_dim_coord)
    cube1 = iris.util.new_axis(cube1, "height")
    cubelist = iris.cube.CubeList([cube1, cube2])
    result = compare_coords(cubelist)
    self.assertIsInstance(result, list)
    self.assertEqual(len(result[0]), 1)
    self.assertEqual(len(result[1]), 0)
    self.assertEqual(result[0]["height"]["coord"], self.extra_dim_coord)
    self.assertEqual(result[0]["height"]["data_dims"], 0)
    self.assertEqual(result[0]["height"]["aux_dims"], None)