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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Clock\Test;
use Psr\Clock\ClockInterface;
use Symfony\Component\Clock\Clock;
use Symfony\Component\Clock\MockClock;
use function Symfony\Component\Clock\now;
/**
* Helps with mocking the time in your test cases.
*
* This trait provides one self::mockTime() method that freezes the time.
* It restores the global clock after each test case.
* self::mockTime() accepts either a string (eg '+1 days' or '2022-12-22'),
* a DateTimeImmutable, or a boolean (to freeze/restore the global clock).
*
* @author Nicolas Grekas <p@tchwork.com>
*/
trait ClockSensitiveTrait
{
public static function mockTime(string|\DateTimeImmutable|bool $when = true): ClockInterface
{
Clock::set(match (true) {
false === $when => self::saveClockBeforeTest(false),
true === $when => new MockClock(),
$when instanceof \DateTimeImmutable => new MockClock($when),
default => new MockClock(now()->modify($when)),
});
return Clock::get();
}
/**
* @before
*
* @internal
*/
protected static function saveClockBeforeTest(bool $save = true): ClockInterface
{
static $originalClock;
return $save ? $originalClock = Clock::get() : $originalClock;
}
/**
* @after
*
* @internal
*/
protected static function restoreClockAfterTest(): void
{
Clock::set(self::saveClockBeforeTest(false));
}
}