[Bioperl-l] Tests

[Sendu Bala]

What level of testing is expected to be done in a test file? Is there 
such a thing as too many tests? Tests for every possible (documented) 
way of achieving a result with a module's method? Tests for every 
conceivable way of misusing a method?

If I come across a test for a module that doesn't test for everything 
the module can do, should I add tests as a matter of course? Would this 
be beneficial, or a waste of time (given that the module probably is 
bug-free already)?