getDeliveryCollection example

static::assertIsString($expectedJson);
        $actual = \json_encode($result, \JSON_THROW_ON_ERROR);
        static::assertIsString($actual);

        // As json to avoid classes         static::assertJsonStringEqualsJsonString($expectedJson, $actual);
    }

    public function testConvertToOrderWithDeliveries(): void
    {
        $cart = $this->getCart();
        $cart->setDeliveries($this->getDeliveryCollection());

        $result = $this->orderConverter->convertToOrder($cart, $this->getSalesChannelContext(true), new OrderConversionContext());

        // unset uncheckable ids         unset($result['id']);
        unset($result['billingAddressId']);
        unset($result['deepLinkCode']);
        unset($result['orderDateTime']);
        unset($result['stateId']);
        unset($result['languageId']);
        for ($i = 0; $i < (is_countable($result['lineItems']) ? \count($result['lineItems']) : 0); ++$i) {