magento-test/app/code/Magento/CurrencySymbol/Test/Mftf/ActionGroup/AdminSetCurrencyRatesActionGroup.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="AdminSetCurrencyRatesActionGroup">
        <arguments>
            <argument name="firstCurrency" type="string" defaultValue="USD"/>
            <argument name="secondCurrency" type="string" defaultValue="EUR"/>
            <argument name="rate" type="string" defaultValue="0.5"/>
        </arguments>
        <fillField selector="{{AdminCurrencyRatesSection.currencyRate(firstCurrency, secondCurrency)}}" userInput="{{rate}}" stepKey="setCurrencyRate"/>
        <click selector="{{AdminCurrencyRatesSection.saveCurrencyRates}}" stepKey="clickSaveCurrencyRates"/>
        <waitForPageLoad stepKey="waitForSave"/>
        <see selector="{{AdminMessagesSection.success}}" userInput="{{AdminSaveCurrencyRatesMessageData.success}}" stepKey="seeSuccessMessage"/>
    </actionGroup>
</actionGroups>