Re: [PATCH] xfstests: don't remove trailing zeros from integers

[Eric Sandeen <sandeen@redhat.com>]

On 2/28/13 6:26 PM, Eric Whitney wrote:
> _within_tolerance strips trailing zeros from the min and max range
> values it outputs.  This leads to damage if the min or max value is
> an integer containing trailing zeros rather than a real number with
> a fractional part containing trailing zeros. Xfstest 289 can exhibit
> this problem when its input is out of range.  Modify the code so it
> will only remove trailing zeros found after a decimal point.

whoops, that's not too good.

It's only for the output message in a failure case though, correct?
But it makes the error output unhelpful.

Seems a little weird that it still leaves the trailing decimal:

$ echo 20000.00 | sed -e '/\./s/0*$//'
20000.

but that's not a big deal. The patch makes it better and
the output is understandable even if it has a trailing
decimal (which it had before anyway) so:

Reviewed-by: Eric Sandeen <sandeen@redhat.com>

> Signed-off-by: Eric Whitney <enwlinux@gmail.com>
> ---
>  common.filter |    6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/common.filter b/common.filter
> index 9e4c90c..1df2f97 100644
> --- a/common.filter
> +++ b/common.filter
> @@ -106,8 +106,10 @@ EOF
>  
>    # fix up min, max precision for output
>    # can vary for 5.3, 6.2
> -  _min=`echo $_min | sed -e 's/0*$//'` # get rid of trailling zeroes
> -  _max=`echo $_max | sed -e 's/0*$//'` # get rid of trailling zeroes
> +
> +  # remove any trailing zeroes from min, max if they have fractional parts
> +  _min=`echo $_min | sed -e '/\./s/0*$//'`
> +  _max=`echo $_max | sed -e '/\./s/0*$//'`
>  
>    if [ $_in_range -eq 1 ] 
>    then
> 

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