The most of the model objectes distinguish between the service name which must
be instantiated. Now comes that the tests must be modifyed. They have to copy
the test database to a local temp folder. Further at the end of the test
(cleanup() ) the data base must removed complete. This means: close connection,
colse document, revoke data base.
In this state it make sence to change the test. There should be a super class
wich extends Testcase. In this class all needed functionality is implemented.
The child class only do some minor stuff like setting of the service name to
instantiate.