newsupernova/vendor/magento/module-checkout/Test/Mftf/Section/StorefrontMessagesSection.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="StorefrontMessagesSection">
        <!-- @TODO: Use general message selector after MQE-694 is fixed -->
        <element name="messageProductAddedToCart" type="text"
                 selector="//main//div[contains(@class, 'messages')]//div[contains(@class, 'message')]/div[contains(text(), 'You added {{var1}} to your') and a[contains(., 'shopping cart')]]"
                 parameterized="true"
        />
    </section>
</sections>