HttpCacheKeyGenerator example

$item = new CacheItem();

        $cache->expects(static::once())->method('getItem')->willReturn($item);

        $cache->expects(static::once())->method('save')->with($item);

        $store = new CacheStore(
            $cache,
            $this->createMock(CacheStateValidator::class),
            new EventDispatcher(),
            $this->createMock(AbstractCacheTracer::class),
            new HttpCacheKeyGenerator('test', new EventDispatcher(), []),
            $this->createMock(MaintenanceModeResolver::class),
            []
        );

        $store->lock($request);

        static::assertTrue($item->get());

        $reflectionClass = new \ReflectionClass($item);
        $prop = $reflectionClass->getProperty('expiry');
        $prop->setAccessible(true);