Re: TDD: Test-Driven Design or Test-Driven Development?

From: Phlip (phlip_cpp_at_yahoo.com)
Date: 02/29/04 

Date: Sun, 29 Feb 2004 00:26:00 GMT

Keith Ray wrote:

> Vladimir wrote:

> > I will never get tired of repeating...
> >
> > If you intent to get tests pass you'll succeed. If you then approach
> > software with intention to make it fail you'll succeed again. Wow!
Amazing!
> > :)
> >
> > As a software tester with some experience in the area I never believed
in
> > tests designed to show things are working. Tests should be malicious to
be
> > effective.
>
> Interestingly enough, TestDrivenDevelopment has two expected results
> 1. the programmer-test is written AND FAILS because the code to pass
> the test isn't written yet.
> 2. the code is written and the PROGRAMMER TEST PASSES
>
> If you get an unexpected pass in step 1, then examine what went wrong.
>
> If you get an unexpected failure in step 2, then examine what went wrong.

Thank you. The above does not "test" the code in a QC sense.

It tests the >programmer<. If their mental model differs from the code's
true status, those two checks come at very efficient junctures to detect
this situation. 

-- 
  Phlip
    http://www.xpsd.org/cgi-bin/wiki?TestFirstUserInterfaces

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