MAGETWO-91762: [Magento Cloud] - MYSQL Message queue is fetching mess…

…ages from new to old

- Change queue messages sorting order from DESC to ASC

app/code/Magento/MysqlMq/Model/ResourceModel/Queue.php

@@ -151,7 +151,7 @@ public function getMessages($queueName, $limit = null)
                 'queue_message_status.status IN (?)',
                 [QueueManagement::MESSAGE_STATUS_NEW, QueueManagement::MESSAGE_STATUS_RETRY_REQUIRED]
             )->where('queue.name = ?', $queueName)
-            ->order('queue_message_status.updated_at DESC');
+            ->order('queue_message_status.updated_at ASC');
 
         if ($limit) {
             $select->limit($limit);

app/code/Magento/MysqlMq/Test/Unit/Model/ResourceModel/QueueTest.php

@@ -206,7 +206,7 @@ public function testGetMessages()
             ]
         )->willReturnSelf();
         $select->expects($this->once())
-            ->method('order')->with('queue_message_status.updated_at DESC')->willReturnSelf();
+            ->method('order')->with('queue_message_status.updated_at ASC')->willReturnSelf();
         $select->expects($this->once())->method('limit')->with($limit)->willReturnSelf();
         $connection->expects($this->once())->method('fetchAll')->with($select)->willReturn($messages);
         $this->assertEquals($messages, $this->queue->getMessages($queueName, $limit));