public function testGetDuration()
{
$interval = new DateInterval(new Date(2012, 01, 01), new Date(2012, 01, 01));
$this->assertEquals(new Duration(0, TimeUnit::day()), $interval->getDuration());
$interval = new DateInterval(new Date(2012, 01, 01), new Date(2012, 01, 03));
$this->assertEquals(new Duration(2, TimeUnit::day()), $interval->getDuration());
}
public function testHowToGetEachDayBetween2Dates()
{
$interval = new DateInterval(new Date(2013, 1, 1), new Date(2013, 1, 2));
$duration = $interval->getDuration();
$dates = array();
do {
$nextDate = $interval->getCurrent();
$dates[] = $nextDate;
} while ($interval->nextDate());
$this->assertEquals(array(new Date(2013, 1, 1), new Date(2013, 1, 2)), $dates);
}
