Re: c++ compiler

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From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c++
Subject	Re: c++ compiler
Date	Sun, 07 Aug 2011 08:33:54 +1200
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On 08/ 7/11 01:38 AM, Dombo wrote:
> Op 06-Aug-11 11:42, Ian Collins schreef:
>>>
>>> Unit tests never are. Even when the code coverage is 100% there is still
>>> no guarantee that you have covered all possible execution flows.
>>
>> There should be if you wrote the tests first.
>
> If you believe that than those tests give you a false sense of security.

Hence my use of "should".  One of these days I will write the perfect 
set of tests.  Until then I still end up resorting to a debugger from 
time to time.  I still consider this to be a failure in my process.

> If you write the test first (as I do) you still have no guarantee it
> covers every possible scenario (even when the code coverage is 100%).
> Usually code fails on scenarios that weren't anticipated, rather than
> the scenario's that were anticipated (and tested). As long as tests (and
> specifications for that matter) are created by humans chances are that
> they are flawed as well.

Very true.  Just make sure to add a test to show the new scenario fails 
before fixing it.

-- 
Ian Collins

Thread

c++ compiler krishnakanth <kmanivan82@gmail.com> - 2011-08-03 13:34 -0700
  Re: c++ compiler Victor Bazarov <v.bazarov@comcast.invalid> - 2011-08-03 17:11 -0400
    Re: c++ compiler "Waldek M." <wm@localhost.localdomain> - 2011-08-04 21:40 +0200
      Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-04 15:06 -0700
      Re: c++ compiler Qi <no@no.no> - 2011-08-05 10:14 +0800
        Re: c++ compiler Miles Bader <miles@gnu.org> - 2011-08-05 15:02 +0900
          Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-05 02:11 -0700
            Re: c++ compiler Miles Bader <miles@gnu.org> - 2011-08-05 18:41 +0900
              Re: c++ compiler Victor Bazarov <v.bazarov@comcast.invalid> - 2011-08-05 07:58 -0400
                Re: c++ compiler "Waldek M." <wm@localhost.localdomain> - 2011-08-05 21:30 +0200
                Re: c++ compiler Ian Collins <ian-news@hotmail.com> - 2011-08-06 09:53 +1200
                Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-05 15:10 -0700
                Re: c++ compiler Ian Collins <ian-news@hotmail.com> - 2011-08-06 10:20 +1200
                Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-05 18:30 -0700
                Re: c++ compiler Ian Collins <ian-news@hotmail.com> - 2011-08-06 15:25 +1200
                Re: c++ compiler Dombo <dombo@disposable.invalid> - 2011-08-06 10:42 +0200
                Re: c++ compiler Ian Collins <ian-news@hotmail.com> - 2011-08-06 21:42 +1200
                Re: c++ compiler Dombo <dombo@disposable.invalid> - 2011-08-06 15:38 +0200
                Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-06 11:58 -0700
                Re: c++ compiler yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-08-09 13:28 +0000
                Re: c++ compiler Ian Collins <ian-news@hotmail.com> - 2011-08-07 08:33 +1200
              Re: c++ compiler BGB <cr88192@hotmail.com> - 2011-08-05 12:34 -0700
  Re: c++ compiler "Mel Smith" <med_cutout_syntel@aol.com> - 2011-08-05 15:13 -0600

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