MAGETWO-91542: Product belongs to categories with and without event does not shown

- Added automated test script

Author: Davit_Zakharyan

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

@@ -62,6 +62,14 @@
         <seeElement selector="{{StorefrontCategoryProductSection.ProductAddToCartByName(product.name)}}" stepKey="AssertAddToCart" />
     </actionGroup>
 
+    <actionGroup name="StorefrontCheckAddToCartButtonAbsence">
+        <arguments>
+            <argument name="product"/>
+        </arguments>
+        <moveMouseOver selector="{{StorefrontCategoryProductSection.ProductInfoByName(product.name)}}" stepKey="moveMouseOverProduct" />
+        <dontSeeElement selector="{{StorefrontCategoryProductSection.ProductAddToCartByName(product.name)}}" stepKey="checkAddToCartButtonAbsence"/>
+    </actionGroup>
+
     <actionGroup name="StorefrontSwitchCategoryViewToListMode">
         <click selector="{{StorefrontCategoryMainSection.modeListButton}}" stepKey="switchCategoryViewToListMode"/>
         <waitForElement selector="{{StorefrontCategoryMainSection.CategoryTitle}}" time="30" stepKey="waitForCategoryReload"/>