Refactor the devserver to make it easier to control caching

chrome/common/extensions/docs/server2/reference_resolver_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 sys
 import unittest
 
 from file_system import FileNotFoundError
 from in_memory_object_store import InMemoryObjectStore
 from reference_resolver import ReferenceResolver
+from test_object_store import TestObjectStore
 
 class FakeAPIDataSource(object):
   def __init__(self, json_data):
     self._json = json_data
 
   def get(self, key):
     if key not in self._json:
       raise FileNotFoundError(key)
     return self._json[key]
 
   def GetAllNames(self):
     return self._json.keys()
 
 class APIDataSourceTest(unittest.TestCase):
   def setUp(self):
     self._base_path = os.path.join(sys.path[0], 'test_data', 'test_json')
 
   def _ReadLocalFile(self, filename):
     with open(os.path.join(self._base_path, filename), 'r') as f:
       return f.read()
 
   def testGetLink(self):
     data_source = FakeAPIDataSource(
         json.loads(self._ReadLocalFile('fake_data_source.json')))
     resolver = ReferenceResolver(data_source,
                                  data_source,
-                                 InMemoryObjectStore(''))
+                                 TestObjectStore('test'))
     self.assertEqual({
       'href': 'foo.html',
       'text': 'foo',
       'name': 'foo'
     }, resolver.GetLink('foo', namespace='baz'))
     self.assertEqual({
       'href': 'foo.html#type-foo_t1',
       'text': 'foo.foo_t1',
       'name': 'foo_t1'
     }, resolver.GetLink('foo.foo_t1', namespace='baz'))
@@ skipping 107 matching lines @@
                                  namespace='baz'))
 
     # Allow bare "$ref:foo.bar." at the end of a string.
     self.assertEqual(
         '<a href="bar.html#type-bon">bar.bon</a>.',
         resolver.ResolveAllLinks('$ref:bar.bon.',
                                  namespace='baz'))
 
 if __name__ == '__main__':
   unittest.main()