diff --git a/tests/unit/z_cleanup.gd b/tests/unit/z_cleanup.gd
new file mode 100644
index 0000000..b9dc2da
--- /dev/null
+++ b/tests/unit/z_cleanup.gd
@@ -0,0 +1,8 @@
+extends 'res://tests/unitbase.gd'
+
+func test_root() -> void:
+	var children_active: Array[String] = []
+	for child in get_tree().root.get_children(): if child.name != "RuntimeScene" and child.name != name: children_active.append(child.name)
+	
+	if children_active.size() == 0: rok()
+	else: rerror("There are still children active in /root/")