config.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <payment>
            <fake>
                <model>Magento\TestModuleFakePaymentMethod\Gateway\Facade</model>
                <title>Fake Payment Method</title>
                <payment_action>authorize</payment_action>
                <active>1</active>
                <is_gateway>1</is_gateway>
                <can_use_checkout>1</can_use_checkout>
                <can_authorize>1</can_authorize>
                <can_capture>1</can_capture>
                <can_refund>1</can_refund>
                <can_void>1</can_void>
                <can_cancel>1</can_cancel>
                <cctypes>AE,VI,MC,DI,JCB,CUP,DN,MI</cctypes>
                <useccv>1</useccv>
                <order_status>processing</order_status>
            </fake>
            <fake_vault>
                <model>Magento\TestModuleFakePaymentMethod\Gateway\VaultFacade</model>
                <title>Fake Payment Method Vault</title>
                <active>1</active>
                <instant_purchase>
                    <supported>1</supported>
                </instant_purchase>
            </fake_vault>
        </payment>
    </default>
</config>