/**
  * @dataProvider providerWithHolidays
  */
 public function testAddBusinessDaysWithHolidays($start, $businessDays, $expectedResult)
 {
     $date = new DateTime($start);
     $date->setHolidays(array('2012-12-24', '2012-12-25', '2012-12-31', '2013-01-01', '2013-12-24', '2013-12-25', '2013-07-23', '2013-07-24', '2013-07-29'));
     $date->addBusinessDaysWithHolidays($businessDays);
     $result = $date->format('Y-m-d');
     $this->assertEquals($expectedResult, $result);
 }