MAGETWO-96107: Additional blank option in country dropdown

- Added some corrections based on comments

Author: sona-sargsyan

app/code/Magento/Config/Test/Mftf/Test/CheckingCountryDropDownWithOneAllowedCountryTest.xml

@@ -19,11 +19,16 @@
             <group value="configuration"/>
         </annotations>
         <before>
-            <actionGroup ref="LoginAsAdmin" stepKey="loginAsAdmin"/>
             <createData entity="EnableAdminAccountAllowCountry" stepKey="setAllowedCountries"/>
         </before>
         <after>
             <createData entity="DisableAdminAccountAllowCountry" stepKey="setDefaultValueForAllowCountries"/>
+            <actionGroup ref="LoginAsAdmin" stepKey="loginAsAdmin"/>
+            <actionGroup ref="DeleteCustomerAdminActionGroup" stepKey="deleteCustomer">
+                <argument name="customer" value="CustomerEntityOne"/>
+            </actionGroup>
+            <actionGroup ref="AdminClearCustomersFiltersActionGroup" stepKey="clearFilters"/>
+            <waitForPageLoad stepKey="WaitForPageToLoad"/>
             <actionGroup ref="logout" stepKey="logout"/>
         </after>
          <!--Flush Magento Cache-->

app/code/Magento/Customer/Test/Mftf/ActionGroup/OpenEditCustomerFromAdminActionGroup.xml

@@ -35,8 +35,21 @@
         <click selector="{{AdminCustomerGridMainActionsSection.delete}}" stepKey="clickDelete"/>
         <waitForAjaxLoad stepKey="waitForLoadConfirmation"/>
         <click selector="{{AdminConfirmationModalSection.ok}}" stepKey="confirmDelete"/>
+        <wait time="5" stepKey="aaa"/>
         <see selector="{{AdminMessagesSection.successMessage}}" userInput="A total of 1 record(s) were deleted" stepKey="seeSuccess"/>
     </actionGroup>
+
+    <actionGroup name="DeleteCustomerAdminActionGroup" extends="DeleteCustomerFromAdminActionGroup">
+        <arguments>
+            <argument name="customer"/>
+        </arguments>
+        <remove keyForRemoval="fillSearch"/>
+        <remove keyForRemoval="clickSubmit"/>
+        <click selector="{{AdminDataGridHeaderSection.filters}}" stepKey="openFiltersSectionOnCustomerPage" after="clickOnButtonToRemoveFiltersIfPresent"/>
+        <fillField userInput="{{customer.email}}" selector="{{AdminDataGridHeaderSection.filterFieldInput('email')}}" stepKey="fillEmailOnFiltersSection" after="openFiltersSectionOnCustomerPage"/>
+        <click selector="{{AdminDataGridHeaderSection.applyFilters}}" stepKey="clickApplyFiltersButton" after="fillEmailOnFiltersSection"/>
+    </actionGroup>
+
     <actionGroup name="AdminClearCustomersFiltersActionGroup">
         <amOnPage url="{{AdminCustomerPage.url}}" stepKey="amOnCustomersPage"/>
         <waitForPageLoad stepKey="WaitForPageToLoad"/>