code: def test_flip_invalid_axis(self, dtype):
      for xp in (numpy, cupy):
          x = testing.shaped_arange((3, 4), xp, dtype)
          with pytest.raises(ValueError):
              xp.flip(x, 2)
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 12 for calling the TestFlip obj's underlying member method code with example usage: obj.test_flip_invalid_axis(dtype) without return types