MC-29527: Support sale operation by Magento payment provider gateway

Author: viktym

app/code/Magento/Braintree/Gateway/Command/CaptureStrategyCommand.php

@@ -113,9 +113,9 @@ public function execute(array $commandSubject)
     {
         /** @var \Magento\Payment\Gateway\Data\PaymentDataObjectInterface $paymentDO */
         $paymentDO = $this->subjectReader->readPayment($commandSubject);
-
         $command = $this->getCommand($paymentDO);
-        $this->commandPool->get($command)->execute($commandSubject);
+
+        return $this->commandPool->get($command)->execute($commandSubject);
     }
 
     /**

dev/tests/integration/testsuite/Magento/Checkout/Api/PaymentInformationManagementTest.php renamed to dev/tests/integration/testsuite/Magento/Braintree/PaymentInformationManagementTest.php

@@ -5,14 +5,15 @@
  */
 declare(strict_types=1);
 
-namespace Magento\Checkout\Api;
+namespace Magento\Braintree;
 
 use Braintree\Result\Error;
 use Braintree\Result\Successful;
 use Braintree\Transaction;
 use Braintree\Transaction\CreditCardDetails;
 use Magento\Braintree\Gateway\Http\Client\TransactionSale;
 use Magento\Braintree\Model\Ui\ConfigProvider;
+use Magento\Checkout\Api\PaymentInformationManagementInterface;
 use Magento\Framework\Api\SearchCriteriaBuilder;
 use Magento\Framework\App\State;
 use Magento\Framework\App\Area;