public function testCloningQueryBuilderUniqueConverterInstance()
{
$reflection = new \ReflectionClass(get_class($this->node));
$property = $reflection->getProperty('converter');
$property->setAccessible(true);
$this->node->setConverter($this->getMockBuilder('Doctrine\\ODM\\PHPCR\\Query\\Builder\\ConverterInterface')->getMock());
$clone = clone $this->node;
$this->assertNotSame($property->getValue($this->node), $property->getValue($clone), 'Cloned instance of QueryBuilder does not have an unique Converter instance.');
}