Add automated sys.stdout check.

tests/gclient_utils_test.py

 #!/usr/bin/python
 # Copyright (c) 2010 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 StringIO
 
 # Fixes include path.
 from super_mox import SuperMoxTestBase
 
@@ skipping 92 matching lines @@
         capture_list.append(match.group(1))
     gclient_utils.CheckCallAndFilterAndHeader(
         args, cwd=cwd, always=True, filter_fn=FilterLines)
     self.assertEquals(line_list, ['ahah', 'accb', 'allo', 'addb'])
     self.assertEquals(capture_list, ['cc', 'dd'])
 
   def testCheckCallAndFilter(self):
     args = ['boo', 'foo', 'bar']
     test_string = 'ahah\naccb\nallo\naddb\n'
     self._inner(args, test_string)
+    self.checkstdout('\n________ running \'boo foo bar\' in \'bleh\'\n'
+        'ahah\naccb\nallo\naddb\n\n'
+        '________ running \'boo foo bar\' in \'bleh\'\nahah\naccb\nallo\naddb\n')
 
   def testNoLF(self):
     # Exactly as testCheckCallAndFilterAndHeader without trailing \n
     args = ['boo', 'foo', 'bar']
     test_string = 'ahah\naccb\nallo\naddb'
     self._inner(args, test_string)
+    self.checkstdout('\n________ running \'boo foo bar\' in \'bleh\'\n'
+        'ahah\naccb\nallo\naddb\n'
+        '________ running \'boo foo bar\' in \'bleh\'\nahah\naccb\nallo\naddb')
 
 
 class SplitUrlRevisionTestCase(GclientUtilBase):
   def testSSHUrl(self):
     url = "ssh://test@example.com/test.git"
     rev = "ac345e52dc"
     out_url, out_rev = gclient_utils.SplitUrlRevision(url)
     self.assertEquals(out_rev, None)
     self.assertEquals(out_url, url)
     out_url, out_rev = gclient_utils.SplitUrlRevision("%s@%s" % (url, rev))
@@ skipping 27 matching lines @@
     out_url, out_rev = gclient_utils.SplitUrlRevision("%s@%s" % (url, rev))
     self.assertEquals(out_rev, rev)
     self.assertEquals(out_url, url)
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()
 
 # vim: ts=2:sw=2:tw=80:et: