code: def test_line_search_exceptions(self):
      testcases = [
          # Invalid c1 values
          dict(c1=-1, c2=0.5, maxiter=1),
          dict(c1=0, c2=0.5, maxiter=1),
          dict(c1=1, c2=0.5, maxiter=1),
          # Invalid c2 values
          dict(c2=-1, c1=0.5, maxiter=1),
          dict(c2=0, c1=0.5, maxiter=1),
          dict(c2=1, c1=0.5, maxiter=1),
          # c1 > c2
          dict(c1=0.5, c2=0.1, maxiter=1),
          # Invalid `maxiter` values
          dict(c1=0.05, c2=0.1, maxiter=-10),
          dict(c1=0.05, c2=0.1, maxiter=0),
      ]
  
      def func(x):
          return x
  
      for testcase in testcases:
          error_desc = "Line search for {}".format(testcase)
          with self.assertRaises(ValueError, msg=error_desc):
              wolfe.line_search(f=func, f_deriv=func, **testcase)
  
file_path: neupy/tests/algorithms/minsearch/test_wolfe.py
imports: import operator
  from functools import reduce
  from collections import namedtuple
  from itertools import product
  import numpy
  from neupy.algorithms.minsearch import wolfe
  from base import BaseTestCase
label_desc: Use image node_id 2 for calling the WolfeInterpolationTestCase obj's underlying member method code with example usage: obj.test_line_search_exceptions() and returns: x