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[Octave-bug-tracker] [bug #53435] tests: camorbit.m, camroll.m: two fail


From: Mike Miller
Subject: [Octave-bug-tracker] [bug #53435] tests: camorbit.m, camroll.m: two failing tests on i686
Date: Fri, 23 Mar 2018 02:34:34 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0

URL:
  <http://savannah.gnu.org/bugs/?53435>

                 Summary: tests: camorbit.m, camroll.m: two failing tests on
i686
                 Project: GNU Octave
            Submitted by: mtmiller
            Submitted on: Thu 22 Mar 2018 11:34:33 PM PDT
                Category: Test Suite
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

    _______________________________________________________

Details:

In testing Octave built for i686, I am seeing 1 test failure in camorbit.m and
1 test failure in camroll.m.

Both test failures look like candidates for increasing the tolerances, if
someone familiar with these functions can verify that this makes sense.


 hf = figure ("visible", "off");
 unwind_protect
   sphere ();
   camorbit(20, 30, "data", [1 2 3]);
   p = campos ();
   u = camup ();
   ## Matlab 2014a
   pm = [-0.215772672525099  -9.04926615428815  14.7669978066852];
   um = [0.413058199972826  0.773801198226611  0.48022351989284];
   assert (p, pm, -5e-15);
   assert (u, um, -5e-15);
 unwind_protect_cleanup
   close (hf);
 end_unwind_protect
!!!!! test failed
ASSERT errors for:  assert (p,pm,-5e-15)

  Location  |  Observed  |  Expected  |  Reason
    (1)        -0.21577     -0.21577     Rel err 1.2477e-14 exceeds tol 5e-15
by 7e-15


 hf = figure ("visible", "off");
 unwind_protect
   peaks ();
   p = camup ();
   assert (p, [0 0 1], eps);
   camroll (30);
   p = camup ();
   ## from Matlab R2014a
   q = [0.826398839602911  0.255644120004753  0.50170812412194];
   assert (p, q, 10*eps);
   camroll (-30);
   ## note it does not go back to [0 0 1]: instead orthog to camera view:
   p = camup ();
   assert (dot (p, camtarget () - campos ()), 0, eps);
   q = [0.496200420425837  0.646660977913424  0.57932264103285];
   assert (p, q, 10*eps);
 unwind_protect_cleanup
   close (hf);
 end_unwind_protect
!!!!! test failed
ASSERT errors for:  assert (dot (p, camtarget () - campos ()),0,eps)

  Location  |  Observed  |  Expected  |  Reason
     ()      -4.3993e-15       0         Abs err 4.3993e-15 exceeds tol
2.2204e-16 by 4e-15






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