When running the tests a database daemon is launched and configured to
use data local to the test directory only. See the actual implementation
of the rundb() function for details (in mysql.pl for instance).

The configuration files specific to the tests are in the conf directory.
The MySQL configuration file (mysql.conf) is created from 
the ../conf/mysql.conf file by the rundb() function of the mysql.pl script.

The database name for test purpose is 'test'. 

When a given test ends, all the files it used are removed. If you want to
keep them, comment the *_clean() lines at the end of the script. If you
want to keep the MySQL server running to query it and find out why and
how a given test failed, comment the stopdb() line in the mysql.pl script
in the END {} instruction near the end.
