[Serializer] Fix Groups tests.

Author: dunglas

Tests/Annotation/GroupsTest.php

@@ -19,23 +19,23 @@
 class GroupsTest extends \PHPUnit_Framework_TestCase
 {
     /**
-     * @expectedException \InvalidArgumentException
+     * @expectedException \Symfony\Component\Serializer\Exception\InvalidArgumentException
      */
     public function testEmptyGroupsParameter()
     {
         new Groups(array('value' => array()));
     }
 
     /**
-     * @expectedException \InvalidArgumentException
+     * @expectedException \Symfony\Component\Serializer\Exception\InvalidArgumentException
      */
     public function testNotAnArrayGroupsParameter()
     {
         new Groups(array('value' => 'coopTilleuls'));
     }
 
     /**
-     * @expectedException \InvalidArgumentException
+     * @expectedException \Symfony\Component\Serializer\Exception\InvalidArgumentException
      */
     public function testInvalidGroupsParameter()
     {