From: Caleb Clausen <vikkous@...>
Date: 2008-09-13T04:02:58+09:00
Subject: Re: How to use this Combinatorial testing technique

On 9/11/08, ara.t.howard <ara.t.howard@gmail.com> wrote:
>
> On Sep 11, 2008, at 5:41 PM, Caleb Clausen wrote:
>> Even expression coverage will only give you complete code coverage;
>> data coverage is
>> another matter. Is there a tool or metric for assessing data coverage?
>> I have no idea.
>>
>
> path to insanity if you ask me:
>
>
>    cover_this = Array.new(10000){|i|  define_method("foo_#{ i }"){ i } }

Obviously complete data coverage is out of the question, for almost
all cases. But your coverage of data doesn't have to be complete in
order to be sufficient. Usually, you want to show that you're covering
typical cases, as well as hitting all the corners and edges. But how
do you know you've covered all those edges? That's what I'm wondering
about. Is there some way to assess (for any language, tho ruby would
be nice) how close you're getting to covering a set of data which is
suitably representative of your entire set of possible data?