public function testPlus()
{
$point = new TimePoint(2012, 1, 1, 9, 30);
$this->assertEquals(new TimePoint(2015, 1, 1, 9, 30), $point->plus(new Duration(3, TimeUnit::year())));
$this->assertEquals(new TimePoint(2012, 5, 1, 9, 30), $point->plus(new Duration(4, TimeUnit::month())));
$this->assertEquals(new TimePoint(2012, 1, 3, 9, 30), $point->plus(new Duration(2, TimeUnit::day())));
$this->assertEquals(new TimePoint(2012, 1, 1, 12, 30), $point->plus(new Duration(3, TimeUnit::hour())));
$this->assertEquals(new TimePoint(2012, 1, 1, 10, 0), $point->plus(new Duration(30, TimeUnit::minute())));
}
public function testHowToAddRemoveDurationFromIt()
{
$startTimePoint = new TimePoint(2013, 3, 12, 18, 27);
$stopTimePoint = new TimePoint(2013, 3, 14, 18, 27);
$duration = new Duration(2, TimeUnit::day());
$result = $startTimePoint->plus($duration);
$this->assertEquals($result, $stopTimePoint);
}
