From: Tino Calancha <tino.calancha@gmail.com>
Date: Sat, 04 Feb 2017 22:42:44 +0900
Prefer set a numeric limit of seconds than using the word 'few'.
For instance, in my box the test `cl-seq-test-bug24264' in
test/lisp/emacs-lisp/cl-seq-tests.el
takes 7 s.
With an explicit numeric threshold is easier to decide whether this test
must be tagged as expensive or not.
In following patch i define a few as 2-3 seconds. Other people might
prefer 4-5 or even higher.
Please, suggest a proper value to consider a test as expensive.
I think 2-3 sec is negligible, and 7 sec is not long enough to annoy.
10 sec or more is beginning to sound like it comes close to "too
long", and 20 sec is definitely too long.