magento-test/app/code/Magento/Cms/Test/Mftf/ActionGroup/VerifyMediaGalleryStorageActionsActionGroup.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="VerifyMediaGalleryStorageActionsActionGroup">
        <annotations>
            <description>Validates that the Media Gallery 'Cancel'/'Create Folder' buttons are present.</description>
        </annotations>

        <waitForPageLoad stepKey="waitForPageLoad1"/>
        <waitForLoadingMaskToDisappear stepKey="waitForLoading1"/>
        <waitForLoadingMaskToDisappear stepKey="waitForLoading2"/>
        <see selector="{{MediaGallerySection.CancelBtn}}" userInput="Cancel" stepKey="seeCancelBtn"/>
        <see selector="{{MediaGallerySection.CreateFolder}}" userInput="Create Folder" stepKey="seeCreateFolderBtn"/>
    </actionGroup>
</actionGroups>