B2B-1703: Add MFTF test for MC-38558

 - Fixing failing test

Author: dhaecker

app/code/Magento/Catalog/Test/Mftf/Data/ProductData.xml

@@ -72,6 +72,11 @@
         <requiredEntity type="product_extension_attribute">EavStockItem</requiredEntity>
         <requiredEntity type="custom_attribute_array">CustomAttributeCategoryIds</requiredEntity>
     </entity>
+    <entity name="SimpleProduct_NoSpaces" extends="SimpleProduct" type="product">
+        <data key="name" unique="suffix">SimpleProduct</data>
+        <data key="sku" unique="suffix">SimpleProduct</data>
+        <data key="urlKey" unique="suffix">simpleproduct</data>
+    </entity>
     <entity name="ProductForPartialSearch" extends="SimpleProduct" type="product">
         <data key="sku">partialTestSku</data>
     </entity>

app/code/Magento/Checkout/Test/Mftf/ActionGroup/StorefrontAddProductToCartActionGroup.xml

@@ -18,6 +18,7 @@
         </arguments>
 
         <click selector="{{StorefrontProductInfoMainSection.AddToCart}}" stepKey="clickAddToCart"/>
+        <waitForPageLoad stepKey="waitForPageLoad"/>
         <waitForElementVisible selector="{{StorefrontCategoryMainSection.SuccessMsg}}" stepKey="waitForSuccessMessage"/>
         <see selector="{{StorefrontProductPageSection.messagesBlock}}" userInput="You added {{product.name}} to your shopping cart." stepKey="assertSuccessMessage"/>
         <seeLink stepKey="assertLinkToShoppingCart" url="{{_ENV.MAGENTO_BASE_URL}}checkout/cart/" userInput="shopping cart"/>