Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/mac/gyptest-global-settings.py

Index: test/mac/gyptest-global-settings.py
diff --git a/test/mac/gyptest-global-settings.py b/test/mac/gyptest-global-settings.py
index 648d32cded99df9ae66acc84cf069dc733003de3..f4ed16630e2f731893d615baa3dbd58cb4b5a3c0 100644
--- a/test/mac/gyptest-global-settings.py
+++ b/test/mac/gyptest-global-settings.py
@@ -15,6 +15,13 @@ import sys
 
 if sys.platform == 'darwin':
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
+
+  # The xcode-ninja generator handles gypfiles which are not at the
+  # project root incorrectly.
+  # cf. https://code.google.com/p/gyp/issues/detail?id=460
+  if test.format == 'xcode-ninja':
+    test.skip_test()
+
   test.run_gyp('src/dir2/dir2.gyp', chdir='global-settings', depth='src')
   # run_gyp shouldn't throw.