Move code starting the editor into a common function.

tests/gcl_unittest.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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."""
 
 # pylint is too confused.
 # pylint: disable=E1101,E1103,E1120,W0212,W0403
 
@@ skipping 66 matching lines @@
         'CODEREVIEW_SETTINGS_FILE_NOT_FOUND',
         'CMDchange', 'CMDchanges', 'CMDcommit', 'CMDdelete', 'CMDdeleteempties',
         'CMDdescription', 'CMDdiff', 'CMDhelp', 'CMDlint', 'CMDnothave',
         'CMDopened', 'CMDpassthru', 'CMDpresubmit', 'CMDrename', 'CMDsettings',
         'CMDstatus', 'CMDtry', 'CMDupload',
         'ChangeInfo', 'Command', 'DEFAULT_LINT_IGNORE_REGEX',
         'DEFAULT_LINT_REGEX', 'CheckHomeForFile', 'DoPresubmitChecks',
         'ErrorExit', 'FILES_CACHE', 'FilterFlag', 'GenUsage',
         'GenerateChangeName', 'GenerateDiff', 'GetCLs', 'GetCacheDir',
         'GetCachedFile', 'GetChangelistInfoFile', 'GetChangesDir',
-        'GetCodeReviewSetting', 'GetEditor', 'GetFilesNotInCL', 'GetInfoDir',
+        'GetCodeReviewSetting', 'GetFilesNotInCL', 'GetInfoDir',
         'GetModifiedFiles', 'GetRepositoryRoot', 'ListFiles',
         'LoadChangelistInfoForMultiple', 'MISSING_TEST_MSG',
         'OptionallyDoPresubmitChecks', 'REPOSITORY_ROOT', 'REVIEWERS_REGEX',
         'RunShell', 'RunShellWithReturnCode', 'SVN',
         'TryChange', 'UnknownFiles', 'Warn',
         'attrs', 'breakpad', 'defer_attributes', 'fix_encoding',
         'gclient_utils', 'json', 'main', 'need_change', 'need_change_and_args',
         'no_args', 'optparse', 'os', 'presubmit_support', 'random', 're',
         'rietveld',
         'string', 'subprocess2', 'sys', 'tempfile', 'time',
@@ skipping 483 matching lines @@
     self.assertEquals(retval, 0)
     self.assertEquals(change_info.description,
         'deescription\n\nCommitted: http://view/12345')
     self.assertTrue(change_info._deleted)
     self.assertTrue(change_info._closed)
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()