The blacklisting of these static variables is necessary because code coverage
will otherwise consume too much memory. The problem did not exist in earlier
PHPUnit versions because all classes beginning with PHPUnit are automatically
blacklisted, and code coverage as well as a few other internal classes were
still internal parts of PHPunit. These were now moved to PHP_ namespace,
causing the problem with backupStaticAttributes.
PHPBB3-9967
Calling initialisation to then use the member directly seems more
complicated than just having a method that returns the instance or
creates it if necessary.
PHPBB3-9868
There is now a phpbb_database_test_case which can be used as a base class for tests that require database access. You have to set up a test_config.php file in your tests/ directory containing host, user, pass etc.
Extra test functionality has been moved to phpbb_test_case_helpers to provide the same functionality in database tests and regular tests without duplicating the code. This is achieved through delegation of method calls.
