Arsse/tests/cases/Db/MySQL/TestDriver.php

<?php
/** @license MIT
 * Copyright 2017 J. King, Dustin Wilson et al.
 * See LICENSE and AUTHORS files for details */

declare(strict_types=1);
namespace JKingWeb\Arsse\TestCase\Db\MySQL;

/**
 * @group slow
 * @covers \JKingWeb\Arsse\Db\MySQL\Driver<extended>
 * @covers \JKingWeb\Arsse\Db\MySQL\ExceptionBuilder
 * @covers \JKingWeb\Arsse\Db\SQLState */
class TestDriver extends \JKingWeb\Arsse\TestCase\Db\BaseDriver {
    use \JKingWeb\Arsse\TestCase\DatabaseDrivers\MySQL;

    protected $create = "CREATE TABLE arsse_test(id bigint auto_increment primary key)";
    protected $lock = ["SET lock_wait_timeout = 1", "LOCK TABLES arsse_meta WRITE"];
    protected $setVersion = "UPDATE arsse_meta set value = '#' where `key` = 'schema_version'";
    protected static $insertDefaultValues = "INSERT INTO arsse_test(id) values(default)";

    protected function exec($q): bool {
        if (!is_array($q)) {
            $q = [$q];
        }
        foreach ($q as $query) {
            static::$interface->query($query);
            if (static::$interface->sqlstate !== "00000") {
                throw new \Exception(static::$interface->error);
            }
        }
        return true;
    }

    protected function query(string $q) {
        $r = static::$interface->query($q);
        if ($r) {
            $row = $r->fetch_row();
            $r->free();
            if ($row) {
                return $row[0];
            } else {
                return null;
            }
        }
        return null;
    }
}