StorefrontHeaderSection.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->
<sections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/SectionObject.xsd">
    <section name="StorefrontHeaderSection">
        <element name="storeViewSwitcher" type="button" selector="#switcher-language-trigger"/>
        <element name="storeViewDropdown" type="button" selector=".active ul.switcher-dropdown"/>
        <element name="storeViewOption" type="button" selector="li.view-{{var1}}>a" parameterized="true"/>
        <element name="storeView" type="button" selector="//div[@class='actions dropdown options switcher-options active']//ul//li//a[contains(text(),'{{var}}')]" parameterized="true"/>
        <element name="storeViewList" type="button" selector="//li[contains(.,'{{storeViewName}}')]//a" parameterized="true"/>
    </section>
</sections>