magento-test/app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminOpenAndFillCreditMemoRefundActionGroup.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="AdminOpenAndFillCreditMemoRefundActionGroup">
        <annotations>
            <description>Clicks on the 'Credit Memos' section on the Admin Orders edit page. Fills in the provided Refund details (Qty to Refund, Shipping Refund, Adjustment Refund, Adjustment Fee and Row number).</description>
        </annotations>
        <arguments>
            <argument name="itemQtyToRefund" type="string" defaultValue="1"/>
            <argument name="shippingRefund" type="string" defaultValue="0"/>
            <argument name="adjustmentRefund" type="string" defaultValue="0"/>
            <argument name="adjustmentFee" type="string" defaultValue="0"/>
            <argument name="rowNumber" type="string" defaultValue="1"/>
        </arguments>

        <!-- Click 'Credit Memo' button -->
        <click selector="{{AdminOrderDetailsMainActionsSection.creditMemo}}" stepKey="clickCreateCreditMemo"/>
        <seeInCurrentUrl url="{{AdminCreditMemoNewPage.url}}" stepKey="seeNewCreditMemoPage"/>
        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="New Memo" stepKey="seeNewMemoInPageTitle"/>

        <!-- Fill data from dataset: refund -->
        <scrollTo selector="{{AdminCreditMemoItemsSection.header}}" stepKey="scrollToItemsToRefund"/>
        <fillField selector="{{AdminCreditMemoItemsSection.itemQtyToRefund(rowNumber)}}" userInput="{{itemQtyToRefund}}" stepKey="fillQtyToRefund"/>
        <waitForLoadingMaskToDisappear stepKey="waitForActivateButton"/>
        <conditionalClick selector="{{AdminCreditMemoItemsSection.updateQty}}" dependentSelector="{{AdminCreditMemoItemsSection.disabledUpdateQty}}" visible="false" stepKey="clickUpdateButton"/>
        <waitForLoadingMaskToDisappear stepKey="waitForUpdate"/>
        <fillField userInput="{{shippingRefund}}" selector="{{AdminCreditMemoTotalSection.refundShipping}}" stepKey="fillShipping"/>
        <fillField userInput="{{adjustmentRefund}}" selector="{{AdminCreditMemoTotalSection.adjustmentRefund}}" stepKey="fillAdjustmentRefund"/>
        <fillField userInput="{{adjustmentFee}}" selector="{{AdminCreditMemoTotalSection.adjustmentFee}}" stepKey="fillAdjustmentFee"/>
        <waitForElementVisible selector="{{AdminCreditMemoTotalSection.updateTotals}}" stepKey="waitForUpdateTotalsButton"/>
        <click selector="{{AdminCreditMemoTotalSection.updateTotals}}" stepKey="clickUpdateTotals"/>
        <checkOption selector="{{AdminCreditMemoTotalSection.emailCopy}}" stepKey="checkSendEmailCopy"/>
    </actionGroup>
</actionGroups>