code: def test_offlimit_offset(self):
      data = np.zeros(10)
      B = Buffer(data=data)
      # with self.assertRaises(ValueError):
      #    B.set_data(np.ones(1), offset=10 * data.dtype.itemsize)
      self.assertRaises(
          ValueError,
          B.set_subdata,
          np.ones(1),
          offset=10 * data.dtype.itemsize,
      )
  
imports: import unittest
  import numpy
  from vispy.testing import run_tests_if_main
  from vispy.gloo.buffer import Buffer, DataBuffer, DataBufferView, VertexBuffer, IndexBuffer
label_desc: Use image node_id 6 for calling the BufferTest obj's underlying member method code with example usage: obj.test_offlimit_offset() without return types