Add a yaml verification to tox testing

Ensure that all yaml is valid when running testing
to ensure that no yaml files are invalid or broken
in anvil.

Change-Id: I292029b9403499fb3b83ed259abb2867f136ad25

tools/verify_yaml

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+#    Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import os
+import sys
+
+import yaml
+
+
+def iter_yamls(base):
+    for root, _dirs, files in os.walk(base):
+        for f in files:
+            if f.endswith(".yaml"):
+                yield os.path.join(root, f)
+
+
+def main():
+    for yaml_filename in iter_yamls(os.getcwd()):
+        with open(yaml_filename, 'rb') as handle:
+            yaml.safe_load(handle)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

tox.ini

@@ -9,6 +9,7 @@ setenv = VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = nosetests {posargs}
+           {toxinidir}/tools/verify_yaml
 
 [tox:jenkins]
 downloadcache = ~/cache/pip