MQE-920: MSI MFTF Test Cases 2

- Merging necessary Checkout Action Group/Section to the Checkout module.
- Moving necessary Checkout files to the "app/code" directory.

Author: ivy00johns

dev/tests/acceptance/tests/functional/Magento/FunctionalTest/Checkout/ActionGroup/StorefrontProductCartActionGroup.xml renamed to app/code/Magento/Checkout/Test/Mftf/ActionGroup/StorefrontProductCartActionGroup.xml

@@ -21,6 +21,24 @@
         <waitForText userInput="{{productCount}}" selector="{{StorefrontMinicartSection.productCount}}" time="30" stepKey="assertProductCount"/>
     </actionGroup>
 
+    <!-- Add Product to Cart from the category page with specified quantity and check message and product count in Minicart -->
+    <actionGroup name="StorefrontAddCategoryProductToCartWithQuantityActionGroup">
+        <arguments>
+            <argument name="product"/>
+            <argument name="quantity" defaultValue="1" type="string"/>
+            <argument name="checkQuantity" defaultValue="1" type="string"/>
+        </arguments>
+        <moveMouseOver selector="{{StorefrontCategoryProductSection.ProductInfoByName(product.name)}}" stepKey="moveMouseOverProduct" />
+        <click selector="{{StorefrontCategoryProductSection.ProductAddToCartByName(product.name)}}" stepKey="clickAddToCart" />
+        <!-- @TODO: Use general message selector after MQE-694 is fixed -->
+        <waitForElement selector="{{StorefrontMessagesSection.messageProductAddedToCart(product.name)}}" time="30" stepKey="assertMessage"/>
+        <waitForText userInput="{{checkQuantity}}" selector="{{StorefrontMinicartSection.productCount}}" time="30" stepKey="assertProductCount"/>
+        <conditionalClick selector="{{StorefrontMinicartSection.showCart}}" dependentSelector="{{StorefrontMinicartSection.miniCartOpened}}" visible="false" stepKey="openMiniCart"/>
+        <waitForElementVisible selector="{{StorefrontMinicartSection.viewAndEditCart}}" stepKey="waitForViewAndEditCartVisible"/>
+        <fillField selector="{{StorefrontMinicartSection.itemQuantity(product.name)}}" userInput="{{quantity}}" stepKey="setProductQtyToFiftyInMiniCart"/>
+        <click selector="{{StorefrontMinicartSection.itemQuantityUpdate(product.name)}}" stepKey="updateQtyInMiniCart"/>
+    </actionGroup>
+
     <!-- Add Product to Cart from the product page and check message and product count in Minicart -->
     <actionGroup name="StorefrontAddProductToCartActionGroup">
         <arguments>

dev/tests/acceptance/tests/functional/Magento/FunctionalTest/Checkout/Section/StorefrontMiniCartSection.xml renamed to app/code/Magento/Checkout/Test/Mftf/Section/StorefrontMiniCartSection.xml

@@ -23,5 +23,7 @@
         <element name="viewAndEditCart" type="button" selector=".action.viewcart" timeout="30"/>
         <element name="miniCartItemsText" type="text" selector=".minicart-items"/>
         <element name="deleteMiniCartItem" type="button" selector=".action.delete" timeout="30"/>
+        <element name="itemQuantity" type="input" selector="//a[text()='{{productName}}']/../..//input[contains(@class,'cart-item-qty')]" parameterized="true"/>
+        <element name="itemQuantityUpdate" type="button" selector="//a[text()='{{productName}}']/../..//span[text()='Update']" parameterized="true"/>
     </section>
 </sections>