text: #!/usr/bin/env python
  #########################################################################################
  #
  # Test function for sct_dmri_concat_bvecs
  #
  # ---------------------------------------------------------------------------------------
  # Copyright (c) 2017 Polytechnique Montreal <www.neuro.polymtl.ca>
  # Author: Julien Cohen-Adad
  #
  # About the license: see the file LICENSE.TXT
  #########################################################################################
  
  def init(param_test):
      """
      Initialize class: param_test
      """
      # initialization
      default_args = ['-g 40 -b 50 -d 20']
      # assign default params
      if not param_test.args:
          param_test.args = default_args
      return param_test
  
  
  def test_integrity(param_test):
      """
      Test integrity of function
      """
      param_test.output += '\nNot implemented.'
      return param_test