Elastica\Query\QueryString::setTimezone PHP 메소드

    public function setTimezone($timezone)
    {
        return $this->setParam('time_zone', $timezone);
    }

 /**
  * @group unit
  */
 public function testSetTimezone()
 {
     $timezone = 'Europe/Paris';
     $text = 'date:[2012 TO 2014]';
     $query = new QueryString($text);
     $query->setTimezone($timezone);
     $expected = array('query_string' => array('query' => $text, 'time_zone' => $timezone));
     $this->assertEquals($expected, $query->toArray());
     $this->assertInstanceOf('Elastica\\Query\\QueryString', $query->setTimezone($timezone));
 }