Google\Cloud\Tests\System\Datastore\RunQueryTest::setUpBeforeClass PHP Method

    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;
    }