/**
* @group unit
*/
public function testSetTimezone()
{
$agg = new DateHistogram('hist', 'created', '1h');
$agg->setTimezone('-02:30');
$expected = array('date_histogram' => array('field' => 'created', 'interval' => '1h', 'time_zone' => '-02:30'));
$this->assertEquals($expected, $agg->toArray());
$this->assertInstanceOf('Elastica\\Aggregation\\DateHistogram', $agg->setTimezone('-02:30'));
}
