new_contents: # -*- coding: utf-8 -*-
  # Licensed to the StackStorm, Inc ('StackStorm') under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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 unittest2
  
  from st2common.util.compat import to_ascii
  
  __all__ = [
      'CompatUtilsTestCase'
  ]
  
  
  class CompatUtilsTestCase(unittest2.TestCase):
      def test_to_ascii(self):
          expected_values = [
              ('already ascii', 'already ascii'),
              (u'foo', 'foo'),
              ('٩(̾●̮̮̃̾•̃̾)۶', '()'),
              ('\xd9\xa9', '')
          ]
  
          for input_value, expected_value in expected_values:
              result = to_ascii(input_value)
              self.assertEqual(result, expected_value)
  
subject: Add tests for to_ascii function.