Check for and disallow rules the process the output of other rules

test/chained-rules/gyptest-chained-rules.py

Index: test/chained-rules/gyptest-chained-rules.py
diff --git a/test/chained-rules/gyptest-chained-rules.py b/test/chained-rules/gyptest-chained-rules.py
new file mode 100644
index 0000000000000000000000000000000000000000..6695e6bed7f0c384abbcddb76d9ba0576eb80afa
--- /dev/null
+++ b/test/chained-rules/gyptest-chained-rules.py
@@ -0,0 +1,18 @@
+#!/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 that we don't have chained rule invocations.
+"""
+
+import TestGyp
+
+# Rules that chain the output of a rule to another rule are challenging to
+# support in all generators, so we purposefully ensure we don't use that
+# behaviour.
+test = TestGyp.TestGyp()
+test.run_gyp('chained-rules.gyp', status=1, stderr=None)
+test.pass_test()