public function testExactLimits()
{
$Time = new Duration();
$this->assertEquals('1d 00:00:00', $Time->fromString('24:00:00')->string());
$this->assertEquals('10:00:00', $Time->fromString('10:00:00')->string());
$this->assertEquals('1:00:00', $Time->fromString(' 1:00:00')->string());
$this->assertEquals('10:00', $Time->fromString(' 10:00')->string());
$this->assertEquals('1:00', $Time->fromString(' 1:00')->string());
}
/**
* Test instance creation from a string.
*
*/
function test_from_string()
{
$duration = Duration::fromString('-7:09:12:06.10');
$this->assertEqual($duration->days(), -7);
$this->assertEqual($duration->hours(), -9);
$this->assertEqual($duration->minutes(), -12);
$this->assertEqual($duration->seconds(), -6);
$duration = Duration::fromString('+0:01:02');
$this->assertEqual($duration->days(), 0);
$this->assertEqual($duration->hours(), 1);
$this->assertEqual($duration->minutes(), 2);
$this->assertEqual($duration->seconds(), 0);
$duration = Duration::fromString('0:00:00:00');
$this->assertEqual($duration->days(), 0);
$this->assertEqual($duration->hours(), 0);
$this->assertEqual($duration->minutes(), 0);
$this->assertEqual($duration->seconds(), 0);
// 50 years (18250 days)
$duration = Duration::fromString('18250:12:00:00');
$this->assertEqual($duration->days(), 18250);
$this->assertEqual($duration->hours(), 12);
$this->assertEqual($duration->minutes(), 0);
$this->assertEqual($duration->seconds(), 0);
// 500 years (182500 days)
$duration = Duration::fromString('182500:12:00:00');
$this->assertEqual($duration->days(), 182500);
$this->assertEqual($duration->hours(), 12);
$this->assertEqual($duration->minutes(), 0);
$this->assertEqual($duration->seconds(), 0);
// -500 years (-182500 days)
$duration = Duration::fromString('-182500:12:00:00');
$this->assertEqual($duration->days(), -182500);
$this->assertEqual($duration->hours(), -12);
$this->assertEqual($duration->minutes(), 0);
$this->assertEqual($duration->seconds(), 0);
// 500,000,000 years (182500000000 days)
$duration = Duration::fromString('182500000000:12:00:00');
$this->assertEqual($duration->days(), 182500000000);
$this->assertEqual($duration->hours(), 12);
$this->assertEqual($duration->minutes(), 0);
$this->assertEqual($duration->seconds(), 0);
// Beyond 4 billion years, the precision drops from
// second precision to hour precision.
// 50,000,000,000 years (18250000000000 days)
$duration = Duration::fromString('18250000000000:12:00:00');
$this->assertEqual($duration->days(), 18250000000000);
$this->assertEqual($duration->hours(), 12);
// $this->assertEqual($duration->minutes(), 0);
// $this->assertEqual($duration->seconds(), 0);
}