magento-test/app/code/Magento/Payment/Test/Mftf/Metadata/PaymentMethodMeta.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<operations xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:mftf:DataGenerator/etc/dataOperation.xsd">
    <operation name="CreatePaymentMethod" dataType="payment_method" type="create">
        <field key="method">string</field>
    </operation>
    <operation name="cashondeliveryPaymentMethodSetup" dataType="cashondelivery_payment_method" type="create" auth="adminFormKey" url="/admin/system_config/save/section/payment/" method="POST">
        <object key="groups" dataType="cashondelivery_payment_method">
            <object key="cashondelivery" dataType="cashondelivery_payment_method">
                <object key="fields" dataType="cashondelivery_payment_method">
                    <object key="active" dataType="active">
                        <field key="value">string</field>
                    </object>
                    <object key="title" dataType="title">
                        <field key="value">string</field>
                    </object>
                </object>
            </object>
        </object>
    </operation>
</operations>