/**
     * setUpBeforeClass.
     *
     * Run Fixture to prepare the test cars table
     */
    public static function setUpBeforeClass()
    {
        self::$connection = DatabaseConnection::connect();
        $sqlQuery = 'CREATE TABLE IF NOT EXISTS cars
			(
				`id`	INTEGER PRIMARY KEY AUTOINCREMENT,
				`name`	TEXT,
				`model`	TEXT,
				`year`	INTEGER
			)';
        self::$connection->exec($sqlQuery);
        self::seedDatabase();
    }
 /**
  * Create a PDO connection if one does not exist.
  *
  * @return void
  */
 public static function connect()
 {
     if (is_null(self::$connection)) {
         self::$connection = DatabaseConnection::connect();
     }
 }