Suppress output from generate_stubs on success

Avoids printing this every build:

[8079->2182/10278 ~17] RULE Generating FFmpeg import libraries.
   Creating library ..\..\out\Debug\lib\avutil-51.lib and object ..\..\out\Debug\lib\avutil-51.exp
[8075->2186/10278 ~17] RULE Generating FFmpeg import libraries.
   Creating library ..\..\out\Debug\lib\avcodec-54.lib and object ..\..\out\Debug\lib\avcodec-54.exp
[8072->2189/10278 ~17] RULE Generating FFmpeg import libraries.
   Creating library ..\..\out\Debug\lib\avformat-54.lib and object ..\..\out\Debug\lib\avformat-54.exp

BUG=126483
R=thakis@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10432002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@138655 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 16 insertions, 2 deletions

diff --git a/tools/generate_stubs/generate_stubs_unittest.py b/tools/generate_stubs/generate_stubs_unittest.py
index 10936f1..13a2bc1 100755
--- a/tools/generate_stubs/generate_stubs_unittest.py
+++ b/tools/generate_stubs/generate_stubs_unittest.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# 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.
 
@@ -19,10 +19,11 @@ errors or positioning.  Most of that should be caught really fast anyways
 during any attempt to use a badly behaving script.
 """
 
+import generate_stubs as gs
 import re
 import StringIO
+import sys
 import unittest
-import generate_stubs as gs
 
 
 def _MakeSignature(return_type, name, params):
@@ -141,6 +142,19 @@ EXPORTS
       self.assertTrue(re.search(pattern, contents),
                       msg='Expected match of "%s" in %s' % (pattern, contents))
 
+  def testQuietRun(self):
+    output = StringIO.StringIO()
+    gs.QuietRun([sys.executable,
+                 '-c', 'print "line 1 and suffix\\nline 2"'],
+                write_to=output)
+    self.assertEqual('line 1 and suffix\nline 2\n', output.getvalue())
+
+    output = StringIO.StringIO()
+    gs.QuietRun([sys.executable,
+                 '-c', 'print "line 1 and suffix\\nline 2"'],
+                 filter='line 1', write_to=output)
+    self.assertEqual('line 2\n', output.getvalue())
+
 
 class PosixStubWriterUnittest(unittest.TestCase):
   def setUp(self):