public function testRemovalResetsOffsetsCorrectly()
{
$node = new Node();
$node->appendChild($a = new A());
$b = new B($node);
$node->prependChild($c = new C());
$node->appendChild($d = new D());
$a->remove();
$this->assertSame([$c, $b, $d], $node->getChildren());
}
