LazyRecord\Testing\BaseTestCase::assertTableExists PHP Method

    public function assertTableExists(PDO $conn, $tableName)
    {
        $driverName = $conn->getAttribute(PDO::ATTR_DRIVER_NAME);
        switch ($driverName) {
            case 'mysql':
                $stm = $conn->query("SHOW COLUMNS FROM {$tableName}");
                break;
            case 'pgsql':
                $stm = $conn->query("SELECT * FROM information_schema.columns WHERE table_name = '{$tableName}';");
                break;
            case 'sqlite':
                $stm = $conn->query("select sql from sqlite_master where type = 'table' AND name = '{$tableName}'");
                break;
            default:
                throw new Exception('Unsupported PDO driver');
                break;
        }
        $result = $stm->fetch(PDO::FETCH_ASSOC);
        $this->assertNotEmpty($result);
    }