Sets up this cookie object.
Runs the shutdown handler.
Detects the error causing the crash if it should be handled.
Determines whether we are dealing with an error that WordPress should handle in order to protect the admin backend against WSODs.
Displays the PHP error template and sends the HTTP status code, typically 500.
Displays the default PHP error template.
Test if loopbacks work as expected.
Test if HTTP requests are blocked.
Test if the REST API is accessible.
Return a set of tests that belong to the site status page.
Add a class to the body HTML tag.
Initiate the WP_Cron schedule test cases.
Populate our list of cron events and store them to a class-wide variable.
Check if any scheduled tasks have been missed.
Run a loopback test on our site.