public function itShouldThrowExceptionsOnDuplicateFieldNames()
{
$class = new ClassMetadataInfo('Doctrine\\Tests\\OXM\\Mapping\\Entity');
$class->mapField(array('fieldName' => 'squibble', 'type' => 'string'));
$class->mapField(array('fieldName' => 'squibble', 'type' => 'string'));
}