QuoteRepository get methods won't return CartInterface but Quote model

[msieprawski]

Preconditions

1. Magento 2.2.0 CE
2. PHP 7.024

Steps to reproduce

1. Create custom module with following etc/di.xml` file:

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <preference for="Magento\Quote\Api\Data\CartInterface" type="Vendor\Module\Model\Quote" />
</config>

2. Create \Vendor\Module\Model\Quote object which extends \Magento\Quote\Model\Quote.
3. Now execute following code:

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$cartRepository = $objectManager->create(\Magento\Quote\Api\CartRepositoryInterface::class);
$cartRepository->get(70); // use existing quote ID

Expected result

1. The result will be an object of instance Vendor\Module\Model\Quote

Actual result

1. Actual result is an object of instance Magento\Quote\Model\Quote

It's caused by invalid vendor/magento/module-quote/Model/QuoteRepository.php::loadQuote method which uses Magento\Quote\Model\QuoteFactory in the very first line instead of Magento\Quote\Api\Data\CartInterfaceFactory.

The solution is to override QuoteRepository's loadQuote method and use CartInterfaceFactory.

[msieprawski]

Any updates on this one?

[magento-engcom-team]

@msieprawski, thank you for your report.
We've acknowledged the issue and added to our backlog.

[cpjeanpaul]

So... ?

[m2-assistant]

Hi @Bartlomiejsz. Thank you for working on this issue.
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