How do you test a ceramic fuse?
It depends on what you mean by "good". If you want to see if the fuse has blown, then you can just use the "continuity test" setting, or check resistance. The fuse should have less than an ohm of resistance across its terminals.

If by "good", you want to check the fuse to see if it's really going to blow at its rated current, I'm not aware of any non-destructive test for that.