/**
* Test TimePoint::getRef() method
*/
public function testGetRef()
{
$timePoint = new TimePoint(['a', 'b', 'c']);
$timePoint2 = new TimePoint(['c', 'b', 'a']);
$timePoint3 = new TimePoint(['a', 'b', 'x']);
$this->assertEquals($timePoint->getRef(), $timePoint2->getRef());
$this->assertNotEquals($timePoint->getRef(), $timePoint3->getRef());
}
