Check the existence and executability of scm commands

tests/gclient_utils_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 StringIO
 import sys
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
@@ skipping 12 matching lines @@
     self.mox.StubOutWithMock(subprocess2, 'Popen')
     self.mox.StubOutWithMock(subprocess2, 'communicate')
 
 
 class GclientUtilsUnittest(GclientUtilBase):
   """General gclient_utils.py tests."""
   def testMembersChanged(self):
     members = [
         'Annotated', 'AutoFlush', 'CheckCallAndFilter',
         'CheckCallAndFilterAndHeader', 'Error', 'ExecutionQueue', 'FileRead',
-        'FileWrite', 'FindFileUpwards', 'FindGclientRoot',
-        'GetGClientRootAndEntries', 'GetEditor', 'IsDateRevision',
-        'MakeDateRevision', 'MakeFileAutoFlush', 'MakeFileAnnotated',
-        'PathDifference', 'ParseCodereviewSettingsContent',
+        'FileWrite', 'FindCommandExecutable', 'FindFileUpwards',
+        'FindGclientRoot', 'GetGClientRootAndEntries', 'GetEditor',
+        'IsDateRevision', 'MakeDateRevision', 'MakeFileAutoFlush',
+        'MakeFileAnnotated', 'PathDifference', 'ParseCodereviewSettingsContent',
         'PrintableObject', 'RemoveDirectory', 'RunEditor',
         'SplitUrlRevision', 'SyntaxErrorToError',
         'UpgradeToHttps', 'Wrapper', 'WorkItem',
         'errno', 'lockedmethod', 'logging', 'os', 'Queue', 're', 'rmtree',
         'safe_makedirs', 'stat', 'subprocess2', 'sys', 'tempfile', 'threading',
         'time', 'urlparse',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(gclient_utils, members)
 
@@ skipping 164 matching lines @@
     for content, expected in values:
       self.assertEquals(
           expected, gclient_utils.ParseCodereviewSettingsContent(content))
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()
 
 # vim: ts=2:sw=2:tw=80:et: