text: # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  import unittest
  
  from openstack import utils
  
  
  class Test_urljoin(unittest.TestCase):
  
      def test_strings(self):
          root = "http://www.example.com"
          leaves = "foo", "bar"
  
          result = utils.urljoin(root, *leaves)
          self.assertEqual(result, "http://www.example.com/foo/bar")
  
      def test_with_none(self):
          root = "http://www.example.com"
          leaves = "foo", None
  
          result = utils.urljoin(root, *leaves)
          self.assertEqual(result, "http://www.example.com/foo/")
  