magento-test/app/code/Magento/Shipping/Test/Mftf/ActionGroup/AdminAssertCreatedShipmentInShipmentsTabActionGroup.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="AdminAssertCreatedShipmentsInShipmentsTabActionGroup">
        <click stepKey="navigateToShipmentsTab" selector="{{AdminOrderDetailsOrderViewSection.shipments}}"/>
        <waitForPageLoad stepKey="waitForTabLoad"/>
        <grabTextFrom selector="{{AdminShipmentsGridSection.shipmentId}}" stepKey="grabShipmentId"/>
        <assertNotEmpty stepKey="assertShipmentIdIsNotEmpty" after="grabShipmentId">
			<actualResult type="const">$grabShipmentId</actualResult>
        </assertNotEmpty>
    </actionGroup>
</actionGroups>