magento-test/app/code/Magento/MysqlMq/etc/di.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\MessageQueue\PublisherPool">
        <arguments>
            <argument name="publishers" xsi:type="array">
                <item name="async" xsi:type="array">
                    <item name="db" xsi:type="object">Magento\Framework\MessageQueue\Publisher</item>
                </item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Framework\MessageQueue\Bulk\PublisherPool">
        <arguments>
            <argument name="publishers" xsi:type="array">
                <item name="async" xsi:type="array">
                    <item name="db" xsi:type="object">Magento\Framework\MessageQueue\Bulk\Publisher</item>
                </item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Framework\MessageQueue\ConnectionTypeResolver">
        <arguments>
            <argument name="resolvers" xsi:type="array">
                <item name="db" xsi:type="object">Magento\MysqlMq\Model\ConnectionTypeResolver</item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Framework\MessageQueue\ExchangeFactory">
        <arguments>
            <argument name="exchangeFactories" xsi:type="array">
                <item name="db" xsi:type="object">\Magento\MysqlMq\Model\Driver\ExchangeFactory</item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Framework\MessageQueue\Bulk\ExchangeFactory">
        <arguments>
            <argument name="exchangeFactories" xsi:type="array">
                <item name="db" xsi:type="object">\Magento\MysqlMq\Model\Driver\Bulk\ExchangeFactory</item>
            </argument>
        </arguments>
    </type>
    <type name="Magento\Framework\MessageQueue\QueueFactory">
        <arguments>
            <argument name="queueFactories" xsi:type="array">
                <item name="db" xsi:type="object">Magento\MysqlMq\Model\Driver\QueueFactory</item>
            </argument>
        </arguments>
    </type>
    <virtualType name="Magento\MysqlMq\Model\Driver\Bulk\ExchangeFactory" type="Magento\MysqlMq\Model\Driver\ExchangeFactory">
        <arguments>
            <argument name="instanceName" xsi:type="string">\Magento\MysqlMq\Model\Driver\Bulk\Exchange</argument>
        </arguments>
    </virtualType>
</config>