shouldBePersisted example

    public function save(Cart $cart, SalesChannelContext $context): void
    {
        $shouldPersist = $this->shouldPersist($cart);

        $this->eventDispatcher->dispatch(new CartSavedEvent($context, $cart));

        $event = new CartVerifyPersistEvent($context, $cart, $shouldPersist);

        $this->eventDispatcher->dispatch($event);
        if (!$event->shouldBePersisted()) {
            $this->delete($cart->getToken(), $context);

            return;
        }

        $content = $this->serializeCart($cart, $context);

        $this->redis->set(self::PREFIX . $cart->getToken(), $content, ['EX' => $this->expireDays * 86400]);
    }

    public function delete(string $token, SalesChannelContext $context): void
    {

public function save(Cart $cart, SalesChannelContext $context): void
    {
        if ($cart->getBehavior()?->isRecalculation()) {
            return;
        }

        $shouldPersist = $this->shouldPersist($cart);

        $event = new CartVerifyPersistEvent($context, $cart, $shouldPersist);
        $this->eventDispatcher->dispatch($event);

        if (!$event->shouldBePersisted()) {
            $this->delete($cart->getToken(), $context);

            return;
        }

        $payloadExists = $this->payloadExists();

        $sql = <<<'SQL' INSERT INTO `cart` (`token`, `currency_id`, `shipping_method_id`, `payment_method_id`, `country_id`, `sales_channel_id`, `customer_id`, `price`, `line_item_count`, `cart`, `rule_ids`, `created_at`) VALUES (:token, :currency_id, :shipping_method_id, :payment_method_id, :country_id, :sales_channel_id, :customer_id, :price, :line_item_count, :payload, :rule_ids, :now) ON DUPLICATE KEY UPDATE `currency_id` = :currency_id, `shipping_method_id` = :shipping_method_id, `payment_method_id` = :payment_method_id, `country_id` = :country_id, `sales_channel_id` = :sales_channel_id, `customer_id` = :customer_id,`price` = :price, `line_item_count` = :line_item_count, `cart` = :payload, `rule_ids` = :rule_ids, `updated_at` = :now;

        $persister = new CartPersister($connection, $eventDispatcher, $cartSerializationCleaner, false);

        $cart = new Cart('existing');

        $persister->save(
            $cart,
            $this->getSalesChannelContext($cart->getToken())
        );
        static::assertInstanceOf(CartVerifyPersistEvent::class, $caughtEvent, CartVerifyPersistEvent::class D ' did not run');
        static::assertFalse($caughtEvent->shouldBePersisted());
        static::assertCount(0, $caughtEvent->getCart()->getLineItems());
    }

    public function testCartVerifyPersistEventIsFiredAndPersisted(): void
    {
        $caughtEvent = null;
        $this->addEventListener($this->getContainer()->get('event_dispatcher'), CartVerifyPersistEvent::class, static function DCartVerifyPersistEvent $event) use (&$caughtEvent): void {
            $caughtEvent = $event;
        });

        $cart = new Cart('existing');