magento-test/app/code/Magento/MediaGalleryUi/Test/Mftf/ActionGroup/AdminEnhancedMediaGalleryUploadImageActionGroup.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="AdminEnhancedMediaGalleryUploadImageActionGroup">
        <annotations>
            <description>Uploads the provided Image to Media Gallery. If you use this action group, you MUST add steps to delete the image in the "after" steps.</description>
        </annotations>
        <arguments>
            <argument name="image"/>
        </arguments>
        <waitForPageLoad stepKey="waitForPageFullyLoaded"/>
        <waitForElement selector="{{AdminEnhancedMediaGalleryActionsSection.upload}}" stepKey="waitForUploadButton"/>
        <attachFile selector="{{AdminEnhancedMediaGalleryActionsSection.upload}}" userInput="{{image.value}}" stepKey="uploadImage"/>
        <waitForPageLoad stepKey="waitForPageLoad"/>
        <comment userInput="BIC workaround" stepKey="waitForLoadingMaskToDisappear"/>
    </actionGroup>
</actionGroups>