/**
* Will throw an exception if the node is a root node
*
* @param Node $node
*
* @throws Exception\OperationNotAllowedException
*/
private function assertIsNotRoot(Node $node)
{
if (!$node->isRoot()) {
return;
}
throw new OperationNotAllowedException('Could not perform operation on root node.');
}
public function testIsRootNode()
{
$node = new Node(Tree::ROOT_NODE_ID);
$this->assertTrue($node->isRoot());
}