def METHOD_NAME(self):
    list_of_cubes = self.simple_1d_time_cubes()
    cube = stock.simple_2d()
    list_of_cubes.append(cube)
    expected = "hours since 1970-01-01 00:00:00"
    unify_time_units(list_of_cubes)
    self._common(expected, list_of_cubes)