diff -r 000000000000 -r 6474c204b198 media/webrtc/trunk/tools/gyp/test/generator-output/gyptest-top-all.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/trunk/tools/gyp/test/generator-output/gyptest-top-all.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Verifies building a project hierarchy created when the --generator-output=
+option is used to put the build configuration files in a separate
+directory tree.
+"""
+
+import TestGyp
+
+# Ninja and Android don't support --generator-output.
+test = TestGyp.TestGyp(formats=['!ninja', '!android'])
+
+test.writable(test.workpath('src'), False)
+
+test.run_gyp('prog1.gyp',
+             '-Dset_symroot=1',
+             '--generator-output=' + test.workpath('gypfiles'),
+             chdir='src')
+
+test.writable(test.workpath('src/build'), True)
+test.writable(test.workpath('src/subdir2/build'), True)
+test.writable(test.workpath('src/subdir3/build'), True)
+
+test.build('prog1.gyp', test.ALL, chdir='gypfiles')
+
+chdir = 'gypfiles'
+
+expect = """\
+Hello from %s
+Hello from inc.h
+Hello from inc1/include1.h
+Hello from inc2/include2.h
+Hello from inc3/include3.h
+Hello from subdir2/deeper/deeper.h
+"""
+
+if test.format == 'xcode':
+  chdir = 'src'
+test.run_built_executable('prog1', chdir=chdir, stdout=expect % 'prog1.c')
+
+if test.format == 'xcode':
+  chdir = 'src/subdir2'
+test.run_built_executable('prog2', chdir=chdir, stdout=expect % 'prog2.c')
+
+if test.format == 'xcode':
+  chdir = 'src/subdir3'
+test.run_built_executable('prog3', chdir=chdir, stdout=expect % 'prog3.c')
+
+test.pass_test()