new_contents: # Licensed to the Apache Software Foundation (ASF) 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 unittest
  
  from libcloudcore.utils import force_str, force_unicode, force_bytes
  
  
  class TestStringHelpers(unittest.TestCase):
  
      def test_str_str(self):
          self.assertEqual(force_str("foo"), "foo")
  
      def test_str_u(self):
          self.assertEqual(force_str(u"foo"), "foo")
  
      def test_str_b(self):
          self.assertEqual(force_str(b"foo"), "foo")
  
      def test_str_exception(self):
          self.assertRaises(ValueError, force_str, [])
  
      def test_unicode_str(self):
          self.assertEqual(force_unicode("foo"), u"foo")
  
      def test_unicode_u(self):
          self.assertEqual(force_unicode(u"foo"), u"foo")
  
      def test_unicode_b(self):
          self.assertEqual(force_unicode(b"foo"), u"foo")
  
      def test_unicode_exception(self):
          self.assertRaises(ValueError, force_unicode, [])
  
      def test_bytes_str(self):
          self.assertEqual(force_bytes("foo"), b"foo")
  
      def test_bytes_u(self):
          self.assertEqual(force_bytes(u"foo"), b"foo")
  
      def test_bytes_b(self):
          self.assertEqual(force_bytes(b"foo"), b"foo")
  
      def test_bytes_exception(self):
          self.assertRaises(ValueError, force_bytes, [])
  
subject: Test force_str/text/bytes helpers