old_contents: #!/usr/bin/python
  
  # Copyright 2012 Software Freedom Conservancy.
  #
  # 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 selenium.webdriver.common.proxy import Proxy
  
  
  class ProxyTests(unittest.TestCase):
  
      def testCanAddToDesiredCapabilities(self):
          desired_capabilities = {}
          proxy = Proxy()
          proxy.http_proxy = 'some.url:1234'
  
          proxy.add_to_capabilities(desired_capabilities)
  
          expected_capabilities = {
              'proxy': {
                  'proxyType': 'manual',
                  'httpProxy': 'some.url:1234'
              }
          }
  
          self.assertEqual(expected_capabilities, desired_capabilities)
  
new_contents: #!/usr/bin/python
  
  # Copyright 2012 Software Freedom Conservancy.
  #
  # 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 selenium.webdriver.common.proxy import Proxy
  
  
  class ProxyTests(unittest.TestCase):
  
      def testCanAddToDesiredCapabilities(self):
          desired_capabilities = {}
          proxy = Proxy()
          proxy.http_proxy = 'some.url:1234'
  
          proxy.add_to_capabilities(desired_capabilities)
  
          expected_capabilities = {
              'proxy': {
                  'proxyType': 'MANUAL',
                  'httpProxy': 'some.url:1234'
              }
          }
  
          self.assertEqual(expected_capabilities, desired_capabilities)
  
subject: Fix test as well :)