magento-test/app/code/Magento/Customer/Test/Mftf/ActionGroup/SwitchAccountActionGroup.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
    <!--Sign out-->
    <actionGroup name="SignOut">
        <annotations>
            <description>Click on the Backend Admin current Admin User menu. Click on 'Logout'. Validate that you are logged out.</description>
        </annotations>

        <click selector="{{SignOutSection.admin}}" stepKey="clickToAdminProfile"/>
        <click selector="{{SignOutSection.logout}}" stepKey="clickToLogOut"/>
        <waitForPageLoad stepKey="waitForPageLoad"/>
        <see userInput="You have logged out." stepKey="seeSuccessMessage"/>
        <waitForElementVisible selector="//*[@data-ui-id='messages-message-success']" stepKey="waitForSuccessMessageLoggedOut" time="5"/>
    </actionGroup>
</actionGroups>