Subject: Re: TDD and what tests do other than try to find bugs
From: (Rob Warnock)
Date: Thu, 04 Oct 2007 19:53:56 -0500
Newsgroups: comp.lang.lisp
Message-ID: <>
Ken Tilton  <> wrote:
| Duane Rettig wrote:
| > ... anyone who does not do testing at various steps along the design
| > _and_ maintenance/redesign process is just begging for trouble.
| I thought that is why we occasionally move code into production. There 
| is no substitute for real world conditions, if you ask me. Oh, sure, I 
| could sit here spinning my reals trying to reassure myself my code is 
| correct, but it's just no good, is it? I'll never think of everything 
| anyway, So why hold up a production release?

Just a couple of recent examples why not:   ;-}  ;-}
    Deploy first, test later
    Arizona State University decided to act like a 90s-style .com:
    deploy first, even if the software is buggy, try to cope with
    the problems, and fix the code later. didn't work very well.
    3,000 employees were unpaid or underpaid, and the backup procedures
    couldn't scale by nearly enough.
    LAUSD payroll fiasco
    ...a similar fiasco has been afflicting employees in the
    Los Angeles Unified School District (LAUSD) since early this year.
    Some eight months after "going live" with their new payroll
    system, employees are still receiving incorrect paychecks or no
    paychecks at all.  The administration does not yet know whether
    correct W2 forms will be issued in January.  Employees retiring
    cannot get correct pension benefits.


Rob Warnock			<>
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