[Pkg-octave-devel] Unit test bug in octave-signal

[Sébastien Villemot]

On Sun, Nov 05, 2017 at 09:14:08AM +0100, Rafael Laboissière wrote:
> Version 1.3.2-3 of the octave-signal, uploaded yesterday to unstable, builds
> correctly on i386.  However, in order to achieve that, the first unit test
> of function fir2 had to be bypassed [*]:
> 
> #######################################
> ***** xtest
>  f = [0 0.6 0.6 1]; m = [1 1 0 0];
>  b9  = fir2 (30, f, m, 9);
>  b16 = fir2 (30, f, m, 16);
>  b17 = fir2 (30, f, m, 17);
>  b32 = fir2 (30, f, m, 32);
>  assert ( isequal (b9,  b16))
>  assert ( isequal (b17, b32))
>  assert (~isequal (b16, b17))
>  !!!!! known failure
>  assert (isequal (b9, b16)) failed
> #######################################
> 
> This is a highly strange bug that I cannot replicate on my i386 chroot
> (running on an amd64 system).  If someone has access to a native i386 system
> and could track down the problem, I would be grateful.

This test failure seems non-deterministic. I am able to reproduce it in my i386
chroot, but had to run the build three times (without the fir2-*.patch) before
getting an FTBFS.

-- 
⢀⣴⠾⠻⢶⣦⠀  Sébastien Villemot
⣾⠁⢠⠒⠀⣿⡁  Debian Developer
⢿⡄⠘⠷⠚⠋⠀  http://sebastien.villemot.name
⠈⠳⣄⠀⠀⠀⠀  http://www.debian.org
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