[Octave-bug-tracker] [bug #41756] assert wrongly returning no error

[John Hunt]

URL:
  <http://savannah.gnu.org/bugs/?41756>

                 Summary: assert wrongly returning no error
                 Project: GNU Octave
            Submitted by: huntj
            Submitted on: Sun 02 Mar 2014 08:15:39 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.0
        Operating System: GNU/Linux

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Details:

A weird behavior, probably due to a Ctrl-C during a long test,
and perhaps related to persistent variables in assert.
Can not be reproduced in a fresh octave session.


octave:232> assert(1, 2)
octave:233> OCTAVE_VERSION
ans = 3.8.0
octave:234> test assert
  ***** error <O(3x0)s+E(0x2)> assert (zeros (3,0), zeros (0,2))
!!!!! error failed.
Expected <O(3x0)s+E(0x2)> but got no error
octave:236> assert(false) # this one is OK
error: assert (false) failed


It seems that the error messages are evaluated, although not printed, since
when there are differences the elapsed time is longer.

octave:245> tic; assert(1:10000, (1:10000)+1); toc
Elapsed time is 13.1188 seconds.
octave:246> tic; assert(1:10000, (1:10000)); toc
Elapsed time is 0.0127668 seconds.






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