Cache\Adapter\Common\Tests\CacheItemTest::testExpiresAt PHP Метод

    public function testExpiresAt()
    {
        $item = new CacheItem('test_key');
        $this->assertNull($item->getExpirationDate());
        $item->expiresAt(new \DateTime('+1 second'));
        $this->assertEquals(new \DateTime('+1 second'), $item->getExpirationDate());
    }