public function testDateRange()
{
$start = new \MongoDate(strtotime('1985-09-01 01:00:00'));
$end = new \MongoDate(strtotime('1985-09-04'));
$qb = $this->getTestQueryBuilder();
$qb->field('createdAt')->range($start, $end);
$expected = ['createdAt' => ['$gte' => $start, '$lt' => $end]];
$this->assertEquals($expected, $qb->getQueryArray());
}