Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/mac/gyptest-action-envvars.py

Index: test/mac/gyptest-action-envvars.py
diff --git a/test/mac/gyptest-action-envvars.py b/test/mac/gyptest-action-envvars.py
index b4f37c43a29b129e1d08a74469936a1b59a3253b..c84eeaa465ab0e58e690781513ad3d164e28559a 100644
--- a/test/mac/gyptest-action-envvars.py
+++ b/test/mac/gyptest-action-envvars.py
@@ -15,6 +15,12 @@ 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()
+
   CHDIR = 'action-envvars'
   test.run_gyp('action/action.gyp', chdir=CHDIR)
   test.build('action/action.gyp', 'action', chdir=CHDIR, SYMROOT='../build')