public function testSequence()
{
$ticker = new Ticker(['0', '1', '2', '3']);
$this->assertEquals('0', $ticker->__toString());
$this->assertEquals('1', $ticker->__toString());
$this->assertEquals('2', $ticker->__toString());
$this->assertEquals('3', $ticker->__toString());
$this->assertEquals('0', $ticker->__toString());
}
