code: def test_ill_inputs(self):
      self.run_test(3, -1, "gaussian")
      self.run_test(3, -1, "cauchy")
      self.run_test(3, 100, "cauchy")
  
      with self.assertRaisesRegexp(ValueError, ""):
          self.run_test(3, -1, "gassian")
  
file_path: NiftyNet/tests/approximated_smoothing_test.py
imports: from __future__ import absolute_import, print_function
  import numpy
  import tensorflow
  from niftynet.layer.approximated_smoothing import SmoothingLayer
  from tests.niftynet_testcase import NiftyNetTestCase
label_desc: Use image node_id 6 for calling the SmoothingTest obj's underlying member method code with example usage: obj.test_ill_inputs() without return types