code: def test_invalid_input_for_interpolated_univariate_spline(self):
      with assert_raises(ValueError) as info:
          x_values = [1, 2, 4, 6, 8.5]
          y_values = [0.5, 0.8, 1.3, 2.5]
          InterpolatedUnivariateSpline(x_values, y_values)
      assert "x and y should have a same length" in str(info.value)
  
      with assert_raises(ValueError) as info:
          x_values = [1, 2, 4, 6, 8.5]
          y_values = [0.5, 0.8, 1.3, 2.5, 2.8]
          w_values = [-1.0, 1.0, 1.0, 1.0]
          InterpolatedUnivariateSpline(x_values, y_values, w=w_values)
      assert "x, y, and w should have a same length" in str(info.value)
  
      with assert_raises(ValueError) as info:
          bbox = -1
          InterpolatedUnivariateSpline(x_values, y_values, bbox=bbox)
      assert "bbox shape should be (2,)" in str(info.value)
  
      with assert_raises(ValueError) as info:
          InterpolatedUnivariateSpline(x_values, y_values, k=6)
      assert "k should be 1 <= k <= 5" in str(info.value)
  
imports: import numpy
  from numpy.testing import assert_equal, assert_almost_equal, assert_array_equal, assert_array_almost_equal, assert_allclose, suppress_warnings
  from pytest import raises
  from numpy import array, diff, linspace, meshgrid, ones, pi, shape
  from scipy.interpolate.fitpack import bisplrep, bisplev
  from scipy.interpolate.fitpack2 import UnivariateSpline, LSQUnivariateSpline, InterpolatedUnivariateSpline, LSQBivariateSpline, SmoothBivariateSpline, RectBivariateSpline, LSQSphereBivariateSpline, SmoothSphereBivariateSpline, RectSphereBivariateSpline
label_desc: Use image node_id 16 for calling the TestUnivariateSpline obj's underlying member method code with example usage: obj.test_invalid_input_for_interpolated_univariate_spline() without return types