From d844ec06407b139334de2e770285500f238b96cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Sat, 28 Jan 2023 18:52:39 +0100
Subject: [PATCH] Fix: Return array with node from getNeighborsAndSelf() when
 node is root

---
 src/Node/NodeTrait.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Node/NodeTrait.php b/src/Node/NodeTrait.php
index 8b7672d..3a6a4d2 100644
--- a/src/Node/NodeTrait.php
+++ b/src/Node/NodeTrait.php
@@ -129,6 +129,12 @@ public function getNeighbors(): array
 
     public function getNeighborsAndSelf(): array
     {
+        if (null === $this->parent) {
+            return [
+                $this,
+            ];
+        }
+
         return $this->getParent()->getChildren();
     }