/**
* @param DateTime $startDate
* @param DateTime $endDate
* @return TimeSpan
*/
public static function asInterval(DateTime $startDate, DateTime $endDate)
{
$newThis = new TimeSpan();
$newThis->checkStartEndDateAndSetInterval($startDate, $endDate);
$newThis->setStartDate($startDate);
$newThis->setEndDate($endDate);
return $newThis;
}
/**
* @param TimeSpan $timeSpan
*/
private function assertTimeSpan(TimeSpan $timeSpan)
{
$this->assertEquals(new DateTime("2012-01-01"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2012-07-01"), $timeSpan->getEndDate());
$this->assertEquals(0, $timeSpan->getYearsComponent());
$this->assertEquals(6, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->setEndDate(new DateTime("2012-06-01"));
$this->assertEquals(new DateTime("2012-01-01"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2012-06-01"), $timeSpan->getEndDate());
$this->assertEquals(0, $timeSpan->getYearsComponent());
$this->assertEquals(5, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->setEndDate(new DateTime("2013-01-01"));
$this->assertEquals(new DateTime("2012-01-01"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2013-01-01"), $timeSpan->getEndDate());
$this->assertEquals(1, $timeSpan->getYearsComponent());
$this->assertEquals(0, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->clearStartEndDate();
$this->assertNull($timeSpan->getStartDate());
$this->assertNull($timeSpan->getEndDate());
$this->assertEquals(1, $timeSpan->getYearsComponent());
$this->assertEquals(0, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->setEndDate(new DateTime("2013-01-01"));
$this->assertEquals(new DateTime("2012-01-01"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2013-01-01"), $timeSpan->getEndDate());
$this->assertEquals(1, $timeSpan->getYearsComponent());
$this->assertEquals(0, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->setStartDate(new DateTime("2012-01-01"));
$this->assertEquals(new DateTime("2012-01-01"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2013-01-01"), $timeSpan->getEndDate());
$this->assertEquals(1, $timeSpan->getYearsComponent());
$this->assertEquals(0, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
$timeSpan->setStartDate(new DateTime("2012-01-02"));
$this->assertEquals(new DateTime("2012-01-02"), $timeSpan->getStartDate());
$this->assertEquals(new DateTime("2013-01-01"), $timeSpan->getEndDate());
$this->assertEquals(1, $timeSpan->getYearsComponent());
$this->assertEquals(0, $timeSpan->getMonthsComponent());
$this->assertEquals(0, $timeSpan->getDaysComponent());
}
