old_contents: # -*- encoding: utf-8 -*-
  #
  # Copyright 2013 Jay Pipes
  #
  # 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 mock
  import testtools
  
  from talons import helpers
  
  from tests import base
  
  
  class TestHelpers(base.TestCase):
  
      def test_bad_import(self):
          with testtools.ExpectedException(ImportError):
              helpers.import_function('not.exist.function')
  
      def test_no_function_in_module(self):
          with testtools.ExpectedException(ImportError):
              helpers.import_function('sys.noexisting')
  
      def test_not_callable(self):
          with testtools.ExpectedException(TypeError):
              helpers.import_function('sys.stdout')
  
new_contents: # -*- encoding: utf-8 -*-
  #
  # Copyright 2013 Jay Pipes
  #
  # 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 testtools
  
  from talons import helpers
  
  from tests import base
  
  
  class TestHelpers(base.TestCase):
  
      def test_bad_import(self):
          with testtools.ExpectedException(ImportError):
              helpers.import_function('not.exist.function')
  
      def test_no_function_in_module(self):
          with testtools.ExpectedException(ImportError):
              helpers.import_function('sys.noexisting')
  
      def test_not_callable(self):
          with testtools.ExpectedException(TypeError):
              helpers.import_function('sys.stdout')
  
subject: Remove unused mock import in test_helpers.py