magento-test/app/code/Magento/Checkout/Test/Mftf/ActionGroup/StorefrontCheckCartActionGroup.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="StorefrontCheckCartActionGroup">
        <annotations>
            <description>Goes to the Storefront Shopping Cart page. Validates that the provided Subtotal, Shipping, Shipping Method and Total are present and correct.</description>
        </annotations>
        <arguments>
            <argument name="subtotal" type="string"/>
            <argument name="shipping" type="string"/>
            <argument name="shippingMethod" type="string" defaultValue="Flat Rate - Fixed"/>
            <argument name="total" type="string"/>
        </arguments>

        <seeInCurrentUrl url="{{CheckoutCartPage.url}}" stepKey="assertUrl"/>
        <waitForPageLoad stepKey="waitForCartPage"/>
        <conditionalClick selector="{{CheckoutCartSummarySection.shippingHeading}}" dependentSelector="{{CheckoutCartSummarySection.shippingMethodForm}}" visible="false" stepKey="openEstimateShippingSection"/>
        <waitForElementVisible selector="{{CheckoutCartSummarySection.flatRateShippingMethod}}" stepKey="waitForShippingSection"/>
        <checkOption selector="{{CheckoutCartSummarySection.flatRateShippingMethod}}" stepKey="selectShippingMethod"/>
        <scrollTo selector="{{CheckoutCartSummarySection.subtotal}}" stepKey="scrollToSummary"/>
        <see userInput="{{subtotal}}" selector="{{CheckoutCartSummarySection.subtotal}}" stepKey="assertSubtotal"/>
        <see userInput="({{shippingMethod}})" selector="{{CheckoutCartSummarySection.shippingMethod}}" stepKey="assertShippingMethod"/>
        <waitForText userInput="{{shipping}}" selector="{{CheckoutCartSummarySection.shipping}}" time="45" stepKey="assertShipping"/>
        <see userInput="{{total}}" selector="{{CheckoutCartSummarySection.total}}" stepKey="assertTotal"/>
    </actionGroup>
</actionGroups>