Merge "Bug 1594613: behat test for the forms on admin homepage"

test/behat/features/admin/admin_home.feature

+@javascript @core @core_administration
+Feature: The admin homepage
+Test the forms on the admin homepage
+As an admin
+So I can make sure I can close/open site or clear cache
+
+Scenario: Closing the site
+ Given I log in as "admin" with password "Kupuhipa1"
+ And I follow "Administration"
+ # Verifying I'm on the right page
+ And I should see "Register your Mahara site"
+ And I scroll to the base of id "close_site"
+ And I press "Close"
+ And I should see "Reopen site"
+ And I scroll to the base of id "close_site"
+ And I press "Open"
+ And I should see "Close site"
+ # Checking that the caches can be emptied
+ And I scroll to the base of id "clear_caches"
+ And I press "Clear caches"
+ And I should see "All caches were cleared"