Merge branch 'MC-3288' into 2.3-develop-mftf-pr21

# Conflicts:
#	app/code/Magento/Catalog/Test/Mftf/ActionGroup/StorefrontCheckProductIsMissingInCategoryProductsPageActionGroup.xml
#	app/code/Magento/Catalog/Test/Mftf/ActionGroup/StorefrontNavigateCategoryPageActionGroup.xml

Author: dmitriyprime

app/code/Magento/Catalog/Test/Mftf/ActionGroup/StorefrontCheckProductIsMissingInCategoryProductsPageActionGroup.xml

@@ -5,9 +5,10 @@
   * See COPYING.txt for license details.
   */
 -->
-<!-- Check Products after sort on Storefront-->
+
 <actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <!-- Assert product is missing in category products page -->
     <actionGroup name="StorefrontCheckProductIsMissingInCategoryProductsPageActionGroup">
         <arguments>
             <argument name="productName" type="string"/>

app/code/Magento/Catalog/Test/Mftf/ActionGroup/StorefrontNavigateCategoryPageActionGroup.xml

@@ -6,11 +6,12 @@
 -->
 
 <actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <!-- Navigates storefront category page -->
     <actionGroup name="StorefrontNavigateCategoryPageActionGroup">
         <arguments>
             <argument name="category"/>
         </arguments>
         <!-- Open category page on storefront -->
         <amOnPage url="{{StorefrontCategoryPage.url(category.custom_attributes[url_key])}}" stepKey="navigateStorefrontCategoryPage"/>
-     </actionGroup>
+    </actionGroup>
 </actionGroups>