Re:GPL doesn't need to be tested. (Score 1)

Those people who use the GPL to licence their software do so on the understanding that they are granting some particular rights to 3rd parties. However, for all we know, in some jurisdictions, the GPL may grant more rights (or fewer rights) than intended.

Therefore, contrary to you claim, court cases such as these do indeed "test the GPL". They test whether or not it has the desired effects.