Re: [Qemu-devel] Re: [PATCH 0/4] qemu-iotests: Backing file tests

[malc <av1474@comtv.ru>]

On Thu, 16 Jul 2009, Christoph Hellwig wrote:

> On Thu, Jul 16, 2009 at 12:08:56PM +0200, Kevin Wolf wrote:
> > This series adds some patches for backing files to qemu-iotests. It is meant to
> > be applied on top of the recently posted patch introducing test 016.
> 
> Thanks, I've put all the patches in.
> 
> It would be good if we could get Akkarit ASAP as I really don't want
> to keep failing tests for the major formats (really just raw and qcow2)
> around for more than nessecary.
> 
> I wonder if we'll eventually have to add an xfail mechanism for the
> other formats as we can't really rely on them being maintained and
> getting fixed ASAP.
> 
> These patches also bring two issues up I'll want to eventually fixed:
> 
>  - the use of the $(( )) synatx is a bashism.  We'll either need to
>    switch to officially requiring bash and using #!/bin/bash in the
>    first line or switch to use Posix sh synax using let or the expr
>    helper.  Given how nice $(( )) is I'd lean towards the former.

$(()) is POSIX:
http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_04

>  - We'll probably want to introduce standard $TEST_BACKING_IMG and
>    similar variables aswell as shell functions for creating and dealing
>    with them now that they get more common.  Same for the .orig stuff
>    we use when creating compressed images.
> 
> none of that is really ugent, though.
> 
> 

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