# Part 1
# (new) apply the patch from the D524, unless it's already committed
# apply the patch from the D522, unless it's already committed
# enable Debug Mode
# execute the test plan of the D522
# Part 2
# disable Debug Mode
# on the Front-End:
# open the `/index.php?env=-login%3Am0--1--s-&events[orda]=OnMissing` URL
# confirm, that you'll see a 404 Page Not Found page
# confirm, that record in the System Log isn't created about this incident
# open the `/index.php?env=-login%3Am0--1--s-&events[ord]=OnMissing` URL
# confirm, that you'll see a 404 Page Not Found page
# confirm, that record in the System Log isn't created about this incident
# in the Admin Console login screen:
# open the `/admin/index.php?env=-login%3Am0--1--s-&events[orda]=OnMissing` URL
# confirm, that a `Oops, something went wrong` text is shown
# confirm, that a System Log record with `Configuration file for prefix "orda" is unknown` text was created
# open the `/admin/index.php?env=-login%3Am0--1--s-&events[ord]=OnMissing` URL
# confirm, that a `Oops, something went wrong` text is shown
# confirm, that a System Log record with `Event "OnMissing" not implemented in class "OrdersEventHandler"` text was created