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<?php
declare(strict_types=1);
namespace Lcobucci\Clock;
use DateMalformedStringException;
use DateTimeImmutable;
use InvalidArgumentException;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\RequiresPhp;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\TestCase;
#[CoversClass(FrozenClock::class)]
final class FrozenClockTest extends TestCase
{
#[Test]
public function nowShouldReturnAlwaysTheSameObject(): void
{
$now = new DateTimeImmutable();
$clock = new FrozenClock($now);
self::assertSame($now, $clock->now());
self::assertSame($now, $clock->now());
}
#[Test]
public function nowSetChangesTheObject(): void
{
$oldNow = new DateTimeImmutable();
$clock = new FrozenClock($oldNow);
$newNow = new DateTimeImmutable();
$clock->setTo($newNow);
self::assertNotSame($oldNow, $clock->now());
self::assertSame($newNow, $clock->now());
}
#[Test]
public function adjustTimeChangesTheObject(): void
{
$oldNow = new DateTimeImmutable();
$newNow = $oldNow->modify('+1 day');
$clock = new FrozenClock($oldNow);
$clock->adjustTime('+1 day');
self::assertNotEquals($oldNow, $clock->now());
self::assertEquals($newNow, $clock->now());
$clock->adjustTime('-1 day');
self::assertEquals($oldNow, $clock->now());
self::assertNotEquals($newNow, $clock->now());
}
#[Test]
#[RequiresPhp('< 8.3.0')]
public function adjustTimeThrowsForInvalidModifierInPhp82(): void
{
$clock = FrozenClock::fromUTC();
$this->expectException(InvalidArgumentException::class);
$clock->adjustTime('invalid');
}
#[Test]
#[RequiresPhp('>= 8.3.0')]
public function adjustTimeThrowsForInvalidModifier(): void
{
$clock = FrozenClock::fromUTC();
$this->expectException(DateMalformedStringException::class);
$clock->adjustTime('invalid');
}
#[Test]
public function fromUTCCreatesClockFrozenAtCurrentSystemTimeInUTC(): void
{
$clock = FrozenClock::fromUTC();
$now = $clock->now();
self::assertSame('UTC', $now->getTimezone()->getName());
}
}
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