text: 
  #
  # This source file is part of appleseed.
  # Visit http://appleseedhq.net/ for additional information and resources.
  #
  # This software is released under the MIT license.
  #
  # Copyright (c) 2015-2016 Esteban Tovagliari, The appleseedhq Organization
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  import unittest
  import appleseed as asr
  
  class TestDict2Dict(unittest.TestCase):
      """
      Test conversions between python dictionaries
      and appleseed's ParamArrays
      """
  
      def setUp(self):
          pass
  
      def test_roundtrip(self):
          src_params = {
              'int'   : 1,
              'float' : 2.0,
              'string': 'string'
          }
  
          light = asr.Light('point_light', 'light', src_params)
          dst_params = light.get_parameters()
  
          self.assertEqual(src_params, dst_params)
  
      def tearDown(self):
          pass
  
  if __name__ == "__main__":
      unittest.main()
  