It seems that Andreas Raab wrote
> It can be tremendously hard to guess in which class
> exactly you may find a test (if any) for a certain method.

I'm using BrowserUnitTestSupport from Romain Robbes, and I really like it.
It has some bugs and the tests are in a different class (as usual), but
with this browser enhancement the test are really "at hand".

It adds a "test" button to the browser. When you press it you switch
between the method and its test. If the test method doesn't exists, it is
created.

enjoy!

German Morales