magento-test/app/code/Magento/Store/Test/Mftf/ActionGroup/AdminSwitchWebsiteActionGroup.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">
    <actionGroup name="AdminSwitchWebsiteActionGroup">
        <annotations>
            <description>Selects the provided Website from the 'Store View' dropdown menu on the Admin Grid pages.</description>
        </annotations>
        <arguments>
            <argument name="website"/>
        </arguments>

        <scrollToTopOfPage stepKey="scrollToTop"/>
        <click selector="{{AdminMainActionsSection.storeViewDropdown}}" stepKey="clickWebsiteSwitchDropdown"/>
        <waitForElementVisible selector="{{AdminMainActionsSection.websiteByName('Main Website')}}" stepKey="waitForWebsiteAreVisible"/>
        <click selector="{{AdminMainActionsSection.websiteByName(website.name)}}" stepKey="clickWebsiteByName"/>
        <waitForElementVisible selector="{{AdminConfirmationModalSection.ok}}" stepKey="waitingForInformationModal"/>
        <click selector="{{AdminConfirmationModalSection.ok}}" stepKey="confirmStoreSwitch"/>
        <see userInput="{{website.name}}" selector="{{AdminMainActionsSection.storeSwitcher}}" stepKey="seeNewWebsiteName"/>
    </actionGroup>
</actionGroups>