Re: Reiser4 O_DIRECT

[David Masover <ninja@slaphack.com>]

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Hans Reiser wrote:
> Valdis.Kletnieks@vt.edu wrote:
> 
> 
>>On Mon, 23 May 2005 12:52:12 +0300, Markus =?UNKNOWN?Q?T=F6rnqvist?= said:
>> 
>>
>>
>>>On Sun, May 22, 2005 at 07:22:51PM -0500, David Masover wrote:
>>>   
>>>
>>>
>>>>Of course, I've worked on sufficiently few big projects that I'm still
>>>>naive enough to believe that unit tests _can_ catch everything, if
>>>>they're done right.  I'm sure I'll eventually be proven wrong...
>>>>     
>>>>
>>>
>>>I'm sure a testing professional will happily prove you wrong ;)
>>>   
>>>
>>
>>It's *never* the testing professional that disproves "unit tests can catch everything".
>>
>>It's the guy with the creeping-horror Cobol/Python database that finds the stuff
>>that unit tests can't catch.. ;)
>>
>> 
>>
> 
> My favorite for version 3 (we now test for this in v4 testing) was
> mozilla truncating files longer rather than shorter.  Legal but was not
> tested for....

I see how that works.  I'm going to have to think a bit harder now.

My feeling is that you create the standard as you create the test, not
the other way around.  If the test works, then there are by definition
few bugs if any in the system itself -- any other bugs are actually in
the application, not the system.

Still, your true ignorance is what you don't know that you don't know.
There's always something that you didn't think to think of.  And I'm
thinking of putting that as a disclaimer on all my mail...

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