newsupernova/vendor/magento/module-customer/Test/Mftf/ActionGroup/LoginToStorefrontActionGroup.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="LoginToStorefrontActionGroup">
        <arguments>
            <argument name="Customer"/>
        </arguments>
        <amOnPage stepKey="amOnSignInPage"  url="{{StorefrontCustomerSignInPage.url}}"/>
        <fillField  stepKey="fillEmail" userInput="{{Customer.email}}" selector="{{StorefrontCustomerSignInFormSection.emailField}}"/>
        <fillField  stepKey="fillPassword" userInput="{{Customer.password}}" selector="{{StorefrontCustomerSignInFormSection.passwordField}}"/>
        <click stepKey="clickSignInAccountButton" selector="{{StorefrontCustomerSignInFormSection.signInAccountButton}}"/>
    </actionGroup>
</actionGroups>