public static function setUpBeforeClass()
{
parent::setUpBeforeClass();
self::$ancestor = self::$client->key(self::$kind, 'Grandpa Frank');
$key1 = self::$client->key(self::$kind, 'Frank');
$key1->ancestorKey(self::$ancestor);
$key2 = self::$client->key(self::$kind, 'Dave');
$key2->ancestorKey(self::$ancestor);
$key3 = self::$client->key(self::$kind, 'Greg');
self::$client->insertBatch([self::$client->entity(self::$ancestor, self::$data[0]), self::$client->entity($key1, self::$data[1]), self::$client->entity($key2, self::$data[2]), self::$client->entity($key3, self::$data[3])]);
self::$deletionQueue[] = self::$ancestor;
self::$deletionQueue[] = $key1;
self::$deletionQueue[] = $key2;
self::$deletionQueue[] = $key3;
}