Docserver: refactor Servlet, ObjectStore, and ServerInstance architecture to

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

 # 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.
 
 from future import Future
 from object_store import ObjectStore
 
 class TestObjectStore(ObjectStore):
   '''An object store which records its namespace and behaves like a dict.
   Specify |init| with an initial object for the object store.
   Use CheckAndReset to assert how many times Get/Set/Del have been called. Get
   is a special case; it is only incremented once the future has had Get called.
   '''
-  def __init__(self, namespace, init=None, **optargs):
+  def __init__(self, namespace, start_empty=False, init=None):
     self.namespace = namespace
+    self.start_empty = start_empty
     self._store = {} if init is None else init
+    if start_empty:
+      assert not self._store
     self._get_count = 0
     self._set_count = 0
     self._del_count = 0
 
   #
   # ObjectStore implementation.
   #
 
   def GetMulti(self, keys):
     class FutureImpl(object):
@@ skipping 27 matching lines @@
         errors.append('%s: expected %s got %s' % (desc, expected, actual))
     try:
       return (len(errors) == 0, ', '.join(errors))
     finally:
       self.Reset()
 
   def Reset(self):
     self._get_count = 0
     self._set_count = 0
     self._del_count = 0