Make subprocess2.check_call() compliant with subprocess.check_call().

tests/subprocess2_test.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 subprocess2.py."""
 
 import optparse
 import os
 import sys
@@ skipping 64 matching lines @@
         results.update(kwargs)
         results['args'] = args
       def communicate(self):
         return None, None
     subprocess2.subprocess.Popen = fake_Popen
     return results
 
   def test_check_call_defaults(self):
     results = self._fake_communicate()
     self.assertEquals(
-        ['stdout', 'stderr'], subprocess2.check_call(['foo'], a=True))
+        ['stdout', 'stderr'], subprocess2.check_call_out(['foo'], a=True))
     expected = {
         'args': ['foo'],
         'a':True,
     }
     self.assertEquals(expected, results)
 
   def test_communicate_defaults(self):
     results = self._fake_Popen()
     self.assertEquals(
         ((None, None), -8), subprocess2.communicate(['foo'], a=True))
@@ skipping 103 matching lines @@
   do('CCC')
   if options.sleep:
     time.sleep(10)
   return options.return_value
 
 
 if __name__ == '__main__':
   if len(sys.argv) > 1 and sys.argv[1] == '--child':
     sys.exit(child_main(sys.argv[2:]))
   unittest.main()