Factor out gcl.GetRepositoryRoot() into scm.SVN.GetCheckoutRoot()

tests/gcl_unittest.py

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 
 """Unit tests for gcl.py."""
 
 # Local imports
 import gcl
 from super_mox import mox, SuperMoxTestBase
@@ skipping 57 matching lines @@
     gcl.SVN.CaptureInfo("/bleh/prout", print_error=False).AndReturn(result)
     self.mox.ReplayAll()
     self.assertRaises(Exception, gcl.GetRepositoryRoot)
 
   def testGetRepositoryRootGood(self):
     gcl.REPOSITORY_ROOT = None
     root_path = gcl.os.path.join('bleh', 'prout', 'pouet')
     gcl.os.getcwd().AndReturn(root_path)
     result1 = { "Repository Root": "Some root" }
     gcl.SVN.CaptureInfo(root_path, print_error=False).AndReturn(result1)
-    gcl.os.getcwd().AndReturn(root_path)
     results2 = { "Repository Root": "A different root" }
     gcl.SVN.CaptureInfo(gcl.os.path.dirname(root_path),
                         print_error=False).AndReturn(results2)
     self.mox.ReplayAll()
     self.assertEquals(gcl.GetRepositoryRoot(), root_path)
 
   def testGetCachedFile(self):
     # TODO(maruel): TEST ME
     pass
 
@@ skipping 263 matching lines @@
     self.mox.ReplayAll()
 
     gcl.UploadCL(change_info, args)
     self.assertEquals(change_info.issue, 1)
     self.assertEquals(change_info.patchset, 2)
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()