Extensions Docs Server: Integration testing

chrome/common/extensions/docs/server2/api_data_source_test.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import json
 import os
 import unittest
 
 from file_system_cache import FileSystemCache
@@ skipping 11 matching lines @@
   def testSimple(self):
     cache_builder = FileSystemCache.Builder(LocalFileSystem(self._base_path))
     data_source = APIDataSource(cache_builder, './')
 
     # Take the dict out of the list.
     expected = json.loads(self._ReadLocalFile('expected_test_file.json'))
     expected.update({ 'permissions': None })
     self.assertEqual(expected, data_source['test_file'])
     self.assertEqual(expected, data_source['testFile'])
     self.assertEqual(expected, data_source['testFile.html'])
-
-    self.assertEqual(None, data_source['junk'])
+    self.assertRaises(OSError, data_source.get, 'junk')
 
 if __name__ == '__main__':
   unittest.main()