OpenSUSE :: Change To Validate Success Of Script?

I'm testing some (selfwritten) installer scripts and I'd like to test it on several linux systems. From my script, I create a database and a user, which should have no rights but to the objects created on that database. I create that user with "grant usage on <dbname>.* to 'user'@'%' identified by After that, the user exists, but is not allowed to login with mysql client (same procedure works fine on debian systems). At first thought, I supposed, that I did a mistake on database setup, but then I realized, that I could connect from a different workstation using that user.

To me it looks very strange, that that user sees information_schema and test, but not the database, I used at user creation. From my script I check success of db and user creation by using the created user for connection and exec a 'show databases', which should show the new created db. What am I missing with mysql on Suse systems? Is my expectation wrong, did I make a mistake on database setup or what do I have to change to validate success of my script?