Docserver: Add support for viewing docs with a codereview patch applied

chrome/common/extensions/docs/server2/rietveld_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 os
+import sys
+import unittest
+from appengine_url_fetcher import AppEngineUrlFetcher
+from appengine_wrappers import files
+from fake_fetchers import ConfigureFakeFetchers
+from file_system import FileNotFoundError
+from object_store_creator import ObjectStoreCreator
+from patch_servlet import PatchData
+from rietveld_file_system import RietveldFileSystem
+from svn_constants import EXTENSIONS_PATH
+import url_constants
+
+class RietveldFileSystemTest(unittest.TestCase):
+  def setUp(self):
+    ConfigureFakeFetchers(os.path.join(sys.path[0], os.pardir))
+    self._file_system = RietveldFileSystem(
+        EXTENSIONS_PATH,
+        PatchData.Create('14096030'),
+        AppEngineUrlFetcher(url_constants.CODEREVIEW_SERVER),
+        ObjectStoreCreator.Factory('1-0', 'test', persistent=False))
+
+  def _ReadLocalFile(self, filename):
+    with open(os.path.join(sys.path[0],
+                           'test_data',
+                           'rietveld_file_system',
+                           'expected',
+                           filename), 'r') as f:
+      return f.read()
+
+  def testRead(self):
+    self.assertEqual(
+        self._ReadLocalFile('test_foo.html'),
+        self._file_system.ReadSingle(
+            'docs/templates/public/extensions/test_foo.html'))
+    self.assertEqual(
+        self._ReadLocalFile('extensions_sidenav.json'),
+        self._file_system.ReadSingle(
+            'docs/templates/json/extensions_sidenav.json'))
+    self.assertRaises(FileNotFoundError, self._file_system.ReadSingle,
+        'docs/templates/public/extensions/runtime.html')
+
+if __name__ == '__main__':
+  unittest.main()