Adding AvailabilityFinder to Doc Server

chrome/common/extensions/docs/server2/branch_utility_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 os
 import sys
 import unittest
 
 from branch_utility import BranchUtility
@@ skipping 102 matching lines @@
         self._branch_util.GetBranchForVersion(19))
     self.assertEquals(1025,
         self._branch_util.GetBranchForVersion(18))
     self.assertEquals(963,
         self._branch_util.GetBranchForVersion(17))
     self.assertEquals(696,
         self._branch_util.GetBranchForVersion(11))
     self.assertEquals(396,
         self._branch_util.GetBranchForVersion(5))
 
+  def testGetChannelForVersion(self):
+    self.assertEquals('trunk',
+        self._branch_util.GetChannelForVersion('trunk'))
+    self.assertEquals('dev',
+        self._branch_util.GetChannelForVersion(28))
+    self.assertEquals('beta',
+        self._branch_util.GetChannelForVersion(27))
+    self.assertEquals('stable',
+        self._branch_util.GetChannelForVersion(26))
+    self.assertEquals('stable',
+        self._branch_util.GetChannelForVersion(22))
+    self.assertEquals('stable',
+        self._branch_util.GetChannelForVersion(18))
+    self.assertEquals('stable',
+        self._branch_util.GetChannelForVersion(14))
+    self.assertEquals(None,
+        self._branch_util.GetChannelForVersion(30))
+    self.assertEquals(None,
+        self._branch_util.GetChannelForVersion(42))
+
+
 if __name__ == '__main__':
   unittest.main()