[Validator] Add check for existing metadata on property

src/Symfony/Component/Validator/Mapping/ClassMetadata.php

@@ -301,6 +301,14 @@ class ClassMetadata extends ElementMetadata implements MetadataInterface, ClassB
         return $this->members[$property];
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function hasPropertyMetadata($property)
+    {
+        return array_key_exists($property, $this->members);
+    }
+
     /**
      * {@inheritdoc}
      */

src/Symfony/Component/Validator/PropertyMetadataContainerInterface.php

@@ -18,6 +18,15 @@ namespace Symfony\Component\Validator;
  */
 interface PropertyMetadataContainerInterface
 {
+    /**
+     * Check if there's any metadata attached to the given named property.
+     *
+     * @param string $property The property name.
+     *
+     * @return Boolean
+     */
+    public function hasPropertyMetadata($property);
+
     /**
      * Returns all metadata instances for the given named property.
      *

src/Symfony/Component/Validator/Tests/ValidatorTest.php

@@ -187,6 +187,10 @@ class ValidatorTest extends \PHPUnit_Framework_TestCase
         $result = $this->validator->validateProperty($entity, 'firstName');
 
         $this->assertCount(1, $result);
+
+        $result = $this->validator->validateProperty($entity, 'lastName');
+
+        $this->assertCount(0, $result);
     }
 
     public function testValidatePropertyValue()

src/Symfony/Component/Validator/Validator.php

@@ -112,6 +112,10 @@ class Validator implements ValidatorInterface
         }
 
         foreach ($this->resolveGroups($groups) as $group) {
+            if (!$metadata->hasPropertyMetadata($property)) {
+                continue;
+            }
+
             foreach ($metadata->getPropertyMetadata($property) as $propMeta) {
                 $propMeta->accept($visitor, $propMeta->getPropertyValue($containingValue), $group, $property);
             }
@@ -139,6 +143,10 @@ class Validator implements ValidatorInterface
         }
 
         foreach ($this->resolveGroups($groups) as $group) {
+            if (!$metadata->hasPropertyMetadata($property)) {
+                continue;
+            }
+
             foreach ($metadata->getPropertyMetadata($property) as $propMeta) {
                 $propMeta->accept($visitor, $value, $group, $property);
             }