Hi Frantisek,
I think I understand what you're looking for here, but I don't see how
to make it work. If "are" could be applied to a generated list, then
it would have to evaluate its arguments, which is a pretty fishy thing
for a macro to do. (But possible -- check out clojure.contrib.apply-
macro). Here's how I would write this sequence of assertions:
(deftest zeros-are-equal
(doall (map (fn [[a b]] (is (= a b)))
(combinations [0 0.0 0M] 2))))
To answer your other question, if you want a message on each
assertion, just use "is". That's why I've never been crazy about
"are", I feel like it encourages too much succinctness. You also lose
accurate line numbers in error reports.
But if you want, you can use "do-template" in
clojure.contrib.template, which is how "are" is implemented.
(deftest my-test
(do-template (is (= _1 _2) _3)
4 (+ 2 2) "simple arithmetic"
5 (+ 2 2) "bad arithmetic"))
-Stuart Sierra
On Jan 28, 5:29 pm, Frantisek Sodomka <[email protected]> wrote:
> Oops, error. Sequence passed to 'are' cannot be evaluated => use
> quoted list '( or quoted vector '[ ...
>
> (are (= _1 _2)
> '(3 (+ 1 2)
> 0 (+ -1 1)))
>
> Hm... Since 'are' is basically creating bunch of 'is' tests, I wonder
> how to also add a description message for each test. Thinking along
> the lines:
>
> (are (= _1 _2)
> '(3 (+ 1 2) "should be 3"
> 0 (+ -1 1) "-x + x = 0"))
>
> (are (is (= _1 _2) _3)
> '(3 (+ 1 2) "should be 3"
> 0 (+ -1 1) "-x + x = 0"))
>
> (do-parse (is (= _1 _2) _3)
> '(3 (+ 1 2) "should be 3"
> 0 (+ -1 1) "-x + x = 0"))
>
> Frantisek
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