improve xcode_emulation.py

test/ios/gyptest-deployment-target.py

Index: test/ios/gyptest-deployment-target.py
diff --git a/test/ios/gyptest-deployment-target.py b/test/ios/gyptest-deployment-target.py
new file mode 100644
index 0000000000000000000000000000000000000000..6c09d9dc0409f46c2ebfe047e0ffd39deb19d915
--- /dev/null
+++ b/test/ios/gyptest-deployment-target.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2013 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 that IPHONEOS_DEPLOYMENT_TARGET works.
+"""
+
+import TestGyp
+
+import sys
+
+if sys.platform == 'darwin':
+  test = TestGyp.TestGyp(formats=['make', 'ninja', 'xcode'])
+
+  test.run_gyp('deployment-target.gyp', chdir='deployment-target')
+
+  test.build('deployment-target.gyp', test.ALL, chdir='deployment-target')
+
+  test.pass_test()
+