PHPUnit not clearing all tables properly

[mikeselander]

On a current client, we are creating sites as fixtures for some complicated functionality tests, but they are not getting cleared from the database upon test startup. I now have over 20 site tables in the test database and it would be really great if Altis would just clear any and all tables with the tests prefix.

[roborourke]

As discussed on slack the problem is that the WP test framework only loops over the tables that the $wpdb object is aware during the initial bootstrap process. Some code is not included or hooked up during the initial install so this isn't reliable. We should change this to remove all tables with the wptests_ prefix