MC-4543: Convert MassAssignCustomerGroupTest to MFTF

- Fixing text alignment.
- Adding setup/cleanup steps to the "before"/"after" blocks.
- Fixing data references in the "actionGroups".

Author: ivy00johns

app/code/Magento/Customer/Test/Mftf/Test/ChangeCustomerGroupTest.xml

@@ -6,7 +6,8 @@
   */
 -->
 
-<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
+<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
     <test name="ChangingSingleCustomerGroupViaGrid">
         <annotations>
             <title value="Change a single customer group via grid"/>
@@ -20,6 +21,8 @@
 
         <before>
             <createData entity="Simple_US_Customer" stepKey="createCustomer"/>
+
+            <actionGroup ref="LoginAsAdmin" stepKey="loginAsAdmin"/>
         </before>
         <after>
             <!--Delete created product-->
@@ -28,30 +31,33 @@
             <actionGroup ref="AdminDeleteCustomerGroupActionGroup" stepKey="deleteCustomerGroup">
                 <argument name="customerGroupName" value="{{CustomerGroupChange.code}}"/>
             </actionGroup>
+
+            <actionGroup ref="logout" stepKey="logout"/>
         </after>
-        <actionGroup ref="LoginAsAdmin" stepKey="loginAsAdmin"/>
+
         <actionGroup ref="AdminCreateCustomerGroupActionGroup" stepKey="createCustomerGroup">
             <argument name="groupName" value="{{CustomerGroupChange.code}}"/>
             <argument name="taxClass" value="{{CustomerGroupChange.tax_class_name}}"/>
         </actionGroup>
         <actionGroup ref="NavigateToAllCustomerPage" stepKey="navToCustomers"/>
         <actionGroup ref="AdminFilterCustomerByName" stepKey="filterCustomer">
-            <argument name="customerName" value="$createCustomer.fullname$"/>
+            <argument name="customerName" value="{{Simple_US_Customer.fullname}}"/>
         </actionGroup>
         <actionGroup ref="AdminSelectCustomerByEmail" stepKey="selectCustomer">
-            <argument name="customerEmail" value="$createCustomer.email$"/>
+            <argument name="customerEmail" value="$$createCustomer.email$$"/>
         </actionGroup>
         <actionGroup ref="SetCustomerGroupForSelectedCustomersViaGrid" stepKey="setCustomerGroup">
             <argument name="groupName" value="{{CustomerGroupChange.code}}"/>
         </actionGroup>
         <actionGroup ref="AdminFilterCustomerByName" stepKey="filterCustomerAfterGroupChange">
-            <argument name="customerName" value="$createCustomer.fullname$"/>
+            <argument name="customerName" value="{{Simple_US_Customer.fullname}}"/>
         </actionGroup>
         <actionGroup ref="VerifyCustomerGroupForCustomer" stepKey="verifyCustomerGroupSet">
-            <argument name="customerEmail" value="$createCustomer.email$"/>
+            <argument name="customerEmail" value="$$createCustomer.email$$"/>
             <argument name="groupName" value="{{CustomerGroupChange.code}}"/>
         </actionGroup>
     </test>
+
     <test name="ChangingAllCustomerGroupViaGrid" extends="ChangingSingleCustomerGroupViaGrid">
         <annotations>
             <title value="Change all customers' group via grid"/>
@@ -62,6 +68,7 @@
             <group value="customer"/>
             <group value="mtf_migrated"/>
         </annotations>
+
         <remove keyForRemoval="filterCustomer"/>
         <actionGroup ref="AdminSelectAllCustomers" stepKey="selectCustomer">
             <argument name="customerEmail" value="$customer.email$"/>