code: def test_qspline_lambda_nonzero(self):
      for xp, scp in [(cupy, cupyx.scipy), (np, scipy)]:
          with pytest.raises(ValueError):
              scp.signal.qspline1d(xp.asarray([1.0, 2, 3, 4, 5]), 1)
  
imports: import sys
  import unittest
  import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.signal
  import numpy
label_desc: Use image node_id 2 for calling the TestQSpline obj's underlying member method code with example usage: obj.test_qspline_lambda_nonzero() without return types