[Serializer] YamlLoader: groups must be an array

dunglas · dunglas · commit b8a9e7cf36f3 · 2016-01-19T09:07:55.000+01:00
diff --git a/src/Symfony/Component/Serializer/Mapping/Loader/YamlFileLoader.php b/src/Symfony/Component/Serializer/Mapping/Loader/YamlFileLoader.php
@@ -74,6 +74,10 @@ public function loadClassMetadata(ClassMetadataInterface $classMetadata)
                     }
 
                     if (isset($data['groups'])) {
+                        if (!is_array($data['groups'])) {
+                            throw new MappingException('The "groups" key must be an array of strings.');
+                        }
+
                         foreach ($data['groups'] as $group) {
                             if (!is_string($group)) {
                                 throw new MappingException('Group names must be strings.');
