public function testHolidays()
{
$timer = new EmailPlanner(new \DateTime('2015-11-07 11:14:15'));
$this->assertEquals($timer->isHoliday(new \DateTime('2015-12-25 11:14:15')), true);
$this->assertEquals($timer->isHoliday(new \DateTime('2015-12-01 11:14:15')), false);
}
