Behat test: Create external links (Bug 1426983)

Change-Id: Ice4db030da0ca23af78cef9f69e056d9ca5dccad

test/behat/features/admin/create_and_delete_menu_item.feature

+@javascript @core @core_administration
+Feature: Creating/Deleting external links from the Links and Resources sideblock
+   In order to use external links
+   As an admin I need to create an external link and delete it
+   So I can verify that it's usable
+
+Scenario: Creating and deleting external links (Selenium 1426983)
+    # Log in as "Admin" user
+    Given I log in as "admin" with password "Password1"
+    # Verifying log in as successful
+    And I should see "Admin User"
+    # Entering an external link
+    When I follow "Administration"
+    And I choose "Menus" in "Configure site"
+    And I select "Logged-in links and resources" from "Edit:"
+    And I fill in "namenew" with "Test Menu Link"
+    And I fill in "linkedtonew" with "http://www.mahara.org/"
+    And I press "Add"
+    # Verifying item was saved
+    And I should see "Item saved"
+    And I press "Save changes"
+    # Verifying the link as been added successfully
+    And I follow "Return to site"
+    Then I should see "Test Menu Link"
+    And I follow "Administration"
+    And I follow "Configure site"
+    And I choose "Menus" in "Configure site"
+    And I select "Logged-in links and resources" from "Edit:"
+    And I press "Delete"
+    And I press "Save changes"