newsupernova/vendor/magento/module-backend/Test/Mftf/ActionGroup/LoginActionGroup.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="LoginActionGroup">
        <amOnPage url="{{_ENV.MAGENTO_BACKEND_NAME}}" stepKey="navigateToAdmin"/>
        <fillField userInput="{{_ENV.MAGENTO_ADMIN_USERNAME}}" selector="{{AdminLoginFormSection.username}}" stepKey="fillUsername"/>
        <fillField userInput="{{_ENV.MAGENTO_ADMIN_PASSWORD}}" selector="{{AdminLoginFormSection.password}}" stepKey="fillPassword"/>
        <click selector="{{AdminLoginFormSection.signIn}}" stepKey="clickLogin"/>
    </actionGroup>
</actionGroups>