old_contents: #
  #  - Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
  #
  # 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 os
  import testtools
  
  import jenkins_jobs
  from tests.base import mock
  
  
  class TestCaseCacheStorage(testtools.TestCase):
  
      @mock.patch('jenkins_jobs.builder.CacheStorage.get_cache_dir',
                  lambda x: '/bad/file')
      def test_save_on_exit(self):
          """
          Test that the cache is saved on normal object deletion
          """
  
          with mock.patch('jenkins_jobs.builder.CacheStorage.save') as save_mock:
              with mock.patch('os.path.isfile', return_value=False):
                  jenkins_jobs.builder.CacheStorage("dummy")
              save_mock.assert_called_once_with()
  
      @mock.patch('jenkins_jobs.builder.CacheStorage.get_cache_dir',
                  lambda x: '/bad/file')
      def test_cache_file(self):
          """
          Test providing a cachefile.
          """
          test_file = os.path.abspath(__file__)
          with mock.patch('os.path.join', return_value=test_file):
              with mock.patch('yaml.load'):
                  jenkins_jobs.builder.CacheStorage("dummy").data = None
  
new_contents: #
  #  - Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
  #
  # 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 os
  import testtools
  
  import jenkins_jobs
  from tests.base import mock
  
  
  class TestCaseCacheStorage(testtools.TestCase):
  
      @mock.patch('jenkins_jobs.builder.CacheStorage.get_cache_dir',
                  lambda x: '/bad/file')
      def test_save_on_exit(self):
          """
          Test that the cache is saved on normal object deletion
          """
  
          with mock.patch('jenkins_jobs.builder.CacheStorage.save') as save_mock:
              with mock.patch('os.path.isfile', return_value=False):
                  jenkins_jobs.builder.CacheStorage("dummy")
              save_mock.assert_called_with()
  
      @mock.patch('jenkins_jobs.builder.CacheStorage.get_cache_dir',
                  lambda x: '/bad/file')
      def test_cache_file(self):
          """
          Test providing a cachefile.
          """
          test_file = os.path.abspath(__file__)
          with mock.patch('os.path.join', return_value=test_file):
              with mock.patch('yaml.load'):
                  jenkins_jobs.builder.CacheStorage("dummy").data = None
  
subject: Allow save to be called more than once