text: '''
  Units tests for the cpptraj wrappers for nasqm
  '''
  import os
  import pytest
  import numpy as np
  from pynasqm.nmr.nmrgroupgroup import NMRGroupGroup
  import pynasqm.userinput as nasqm_user_input
  import pynasqm.inputceon as inputceon
  
  def setup_module(module):
      '''
      Switch to test directory
      '''
      os.chdir("tests/nmrTests/nmrGroupGroup")
  
  def teardown_module(module):
      '''
      Return to main directory
      '''
      os.chdir("../../..")
  
  def test_nmrgroupgroup_writer1():
      restricted_atoms1 = [[4055, 4056]]
      restricted_atoms2 = [[4065, 4066]]
      desired_distance = [4]
      writer = NMRGroupGroup(restricted_atoms1, restricted_atoms2, desired_distance)
      result_file = "nmr_groupgroup1.dist"
      answer_file = "nmr_groupgroup_test1.dist"
      writer.write_to(result_file)
      result = open(result_file, 'r').read()
      answer = open(answer_file, 'r').read()
      assert result == answer
  
  def test_nmrgrougroup_writer2():
      restricted_atoms1 = [[4055, 4056], [4055, 4056]]
      restricted_atoms2 = [[4065, 4066], [5678, 5679]]
      desired_distance = [4,5]
      writer = NMRGroupGroup(restricted_atoms1, restricted_atoms2, desired_distance)
      result_file = "nmr_groupgroup2.dist"
      answer_file = "nmr_groupgroup_test2.dist"
      writer.write_to(result_file)
      result = open(result_file, 'r').read()
      answer = open(answer_file, 'r').read()
      assert result == answer
  