/**
* Obtains the current instant from the system clock.
* <p>
* This will query the {@link Clock#systemUTC() system UTC clock} to
* obtain the current instant.
* <p>
* Using this method will prevent the ability to use an alternate time-source for
* testing because the clock is effectively hard-coded.
*
* @return Instant the current instant using the system clock, not null
*/
public static function now()
{
return Clock::systemUTC()->instant();
}
public function test__equals()
{
$a = Clock::tick(Clock::system(self::PARIS()), Duration::ofMillis(500));
$b = Clock::tick(Clock::system(self::PARIS()), Duration::ofMillis(500));
$this->assertEquals($a->equals($a), true);
$this->assertEquals($a->equals($b), true);
$this->assertEquals($b->equals($a), true);
$this->assertEquals($b->equals($b), true);
$c = Clock::tick(Clock::system(self::MOSCOW()), Duration::ofMillis(500));
$this->assertEquals($a->equals($c), false);
$d = Clock::tick(Clock::system(self::PARIS()), Duration::ofMillis(499));
$this->assertEquals($a->equals($d), false);
$this->assertEquals($a->equals(null), false);
$this->assertEquals($a->equals("other type"), false);
$this->assertEquals($a->equals(Clock::systemUTC()), false);
}
public function test_now()
{
$expected = Instant::nowOf(Clock::systemUTC());
$test = Instant::now();
$diff = Math::abs($test->toEpochMilli() - $expected->toEpochMilli());
$this->assertTrue($diff < 100);
// less than 0.1 secs
}