MAGETWO-71022: After return is complete in Admin, 'remaining quantity' in customer account shows incorrect value

- Added automated test

Author: tsoyaleksey

app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminInvoiceActionGroup.xml

@@ -38,4 +38,16 @@
         </arguments>
         <see selector="{{AdminInvoiceItemsSection.skuColumn}}" userInput="{{product.sku}}" stepKey="seeProductSkuInGrid"/>
     </actionGroup>
+
+    <actionGroup name="goToInvoiceIntoOrder">
+        <click selector="{{AdminOrderDetailsMainActionsSection.invoice}}" stepKey="clickInvoiceAction"/>
+        <seeInCurrentUrl url="{{AdminInvoiceNewPage.url}}" stepKey="seeOrderInvoiceUrl"/>
+        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="New Invoice" stepKey="seePageNameNewInvoicePage"/>
+    </actionGroup>
+
+    <actionGroup name="submitInvoiceIntoOrder">
+        <click selector="{{AdminInvoiceMainActionsSection.submitInvoice}}" stepKey="clickSubmitInvoice"/>
+        <seeInCurrentUrl url="{{AdminOrderDetailsPage.url}}" stepKey="seeViewOrderPageInvoice"/>
+        <see selector="{{AdminOrderDetailsMessagesSection.successMessage}}" userInput="The invoice has been created." stepKey="seeInvoiceCreateSuccess"/>
+    </actionGroup>
 </actionGroups>

app/code/Magento/Shipping/Test/Mftf/ActionGroup/AdminShipmentActionGroup.xml

@@ -35,4 +35,16 @@
         </arguments>
         <see selector="{{AdminShipmentItemsSection.skuColumn}}" userInput="{{product.sku}}" stepKey="seeProductSkuInGrid"/>
     </actionGroup>
+
+    <actionGroup name="goToShipmentIntoOrder">
+        <click selector="{{AdminOrderDetailsMainActionsSection.ship}}" stepKey="clickShipAction"/>
+        <seeInCurrentUrl url="{{AdminShipmentNewPage.url}}" stepKey="seeOrderShipmentUrl"/>
+        <see selector="{{AdminHeaderSection.pageTitle}}" userInput="New Shipment" stepKey="seePageNameNewInvoicePage"/>
+    </actionGroup>
+
+    <actionGroup name="submitShipmentIntoOrder">
+        <click selector="{{AdminShipmentMainActionsSection.submitShipment}}" stepKey="clickSubmitShipment"/>
+        <seeInCurrentUrl url="{{AdminOrderDetailsPage.url}}" stepKey="seeViewOrderPageShipping"/>
+        <see selector="{{AdminOrderDetailsMessagesSection.successMessage}}" userInput="The shipment has been created." stepKey="seeShipmentCreateSuccess"/>
+    </actionGroup>
 </actionGroups>