Docserver: there is only one.

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

 #!/usr/bin/env python
 # Copyright 2013 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 unittest
 
 from chained_compiled_file_system import ChainedCompiledFileSystem
 from compiled_file_system import CompiledFileSystem
 from object_store_creator import ObjectStoreCreator
@@ skipping 10 matching lines @@
   'a.txt': 'new a.txt',
   'new.txt': 'a new file',
   'dir': {
     'b.txt': 'new b.txt',
     'new.txt': 'new file in dir',
   },
 }
 
 class ChainedCompiledFileSystemTest(unittest.TestCase):
   def setUp(self):
-    self._object_store_creator = ObjectStoreCreator(
-        'chained', start_empty=False)
-    self._base_object_store_creator = ObjectStoreCreator(
-        'base', start_empty=False)
+    object_store_creator = ObjectStoreCreator(start_empty=False)
     base_file_system = TestFileSystem(_TEST_DATA_BASE)
-    self._base_factory = CompiledFileSystem.Factory(
-        base_file_system,
-        self._base_object_store_creator)
+    self._base_factory = CompiledFileSystem.Factory(base_file_system,
+                                                    object_store_creator)
     self._file_system = TestFileSystem(_TEST_DATA_NEW)
-    self._patched_factory = CompiledFileSystem.Factory(
-        self._file_system,
-        self._object_store_creator)
+    self._patched_factory = CompiledFileSystem.Factory(self._file_system,
+                                                       object_store_creator)
     self._chained_factory = ChainedCompiledFileSystem.Factory(
         [(self._patched_factory, self._file_system),
          (self._base_factory, base_file_system)])
     self._base_compiled_fs = self._base_factory.CreateIdentity(TestFileSystem)
     self._chained_compiled_fs = self._chained_factory.CreateIdentity(
         TestFileSystem)
 
   def testGetFromFile(self):
     self.assertEqual(self._chained_compiled_fs.GetFromFile('a.txt'),
                      self._base_compiled_fs.GetFromFile('a.txt'))
@@ skipping 11 matching lines @@
     self.assertEqual(self._chained_compiled_fs.GetFromFile('dir/'),
                      self._base_compiled_fs.GetFromFile('dir/'))
     self._file_system.IncrementStat('dir/')
     self.assertNotEqual(self._chained_compiled_fs.GetFromFileListing('dir/'),
                         self._base_compiled_fs.GetFromFileListing('dir/'))
     self.assertEqual(self._chained_compiled_fs.GetFromFileListing('dir/'),
                      self._file_system.ReadSingle('dir/'))
 
 if __name__ == '__main__':
   unittest.main()