def METHOD_NAME(self):
    """Test callback remove unwanted attributes."""
    attributes = ('history', 'creation_date', 'tracking_id', 'comment')
    for _ in range(2):
        cube = _create_sample_cube()
        for attr in attributes:
            cube.attributes[attr] = attr
        self._save_cube(cube)
    for temp_file in self.temp_files:
        cubes = load(temp_file, callback='default')
        cube = cubes[0]
        self.assertEqual(1, len(cubes))
        self.assertTrue((cube.data == np.array([1, 2])).all())
        self.assertTrue(
            (cube.coord('latitude').points == np.array([1, 2])).all())
        for attr in attributes:
            self.assertTrue(attr not in cube.attributes)