public function testMoveNodeToBecomeRoot() { $item = Entity::find(1); $item->moveTo(0, 2); $item = Entity::find(2); $item->moveTo(0, 3); $item = Entity::find(3); $item->moveTo(0, 4); $item = Entity::find(4); $item->moveTo(0, 5); $item = Entity::find(1); $item->moveTo(0); $this->assertEquals(1, ClosureTable::whereDescendant(1)->count()); }