code: def test_break(self):
      config = copy.deepcopy(self.config)
      config.forward_category = "Other"
      with self.assertRaises(ValueError):
          ForwardShapenetDataset(config)
  
imports: import unittest
  import os
  import sys
  import torch
  from omegaconf.dictconfig import DictConfig
  import numpy.testing
  import numpy
  import copy
  from test.mock_models import MockModel
  from torch_points3d.datasets.segmentation.forward.shapenet import _ForwardShapenet, ForwardShapenetDataset
label_desc: Use image node_id 4 for calling the TestForwardData obj's underlying member method code with example usage: obj.test_break() without return types