magento-test/app/code/Magento/Checkout/Test/Mftf/ActionGroup/StorefrontClickOnMiniCartActionGroup.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="StorefrontClickOnMiniCartActionGroup">
        <annotations>
            <description>Scrolls to the Top of the Page. Clicks on the Mini Shopping Cart icon in the Storefront Header.</description>
        </annotations>

        <scrollToTopOfPage stepKey="scrollToTheTopOfThePage"/>
        <waitForElementVisible selector="{{StorefrontMinicartSection.showCart}}" stepKey="waitForElementToBeVisible"/>
        <click selector="{{StorefrontMinicartSection.showCart}}" stepKey="clickOnMiniCart"/>
        <waitForPageLoad stepKey="waitForPageToLoad"/>
    </actionGroup>
</actionGroups>