Tests that save() correctly updates existing links.
function testShortcutSetSave() {
$set = $this->set;
$old_mlids = $this
->getShortcutInformation($set, 'mlid');
$menu_link = $this
->generateShortcutLink('admin', $this
->randomName());
$menu_link
->save();
$set->links[$menu_link
->uuid()] = $menu_link;
$set
->save();
$saved_set = shortcut_set_load($set
->id());
$new_mlids = $this
->getShortcutInformation($saved_set, 'mlid');
$this
->assertTrue(count(array_intersect($old_mlids, $new_mlids)) == count($old_mlids), 'Shortcut::save() did not inadvertently change existing mlids.');
}