public function testUpdateChildAfterRename()
 {
     $this->pt1->setName('Temp name');
     $this->assertSame($this->pt1, $this->menu->getChild('Temp name'));
     $this->assertEquals(array('Temp name', 'Parent 2'), array_keys($this->menu->getChildren()));
     $this->assertNull($this->menu->getChild('Parent 1'));
 }