[Octave-bug-tracker] [bug #57703] Regressions running test suite

[Dmitri A. Sergatskov]

Follow-up Comment #1, bug #57703 (project octave):

I got the same on Fedora. For Qhull it is more verbose:


octave:2> test scripts/geometry/griddatan.m
????? scripts/geometry/griddatan.m does not exist in path
octave:3> test geometry/griddatan.m
QH6239 Qhull precision error: Initial simplex is cocircular or cospherical. 
Use option 'Qz' for the Delaunay triangulation or Voronoi diagram of
cocircular/cospherical points.  Option 'Qz' adds a point "at infinity".    Use
option 'Qs' to search all points for the initial simplex.

While executing:  | qhull d Qt Qbb Qc 
Options selected for Qhull 2015.2 2016/01/18:
  run-id 2043580498  delaunay  Qtriangulate  Qbbound-last  Qcoplanar-keep
  _pre-merge  _zero-centrum  Qinterior-keep  Pgood  _max-width  1
  Error-roundoff 1.4e-15  _one-merge 9.7e-15  Visible-distance 2.8e-15
  U-coplanar-distance 2.8e-15  Width-outside 5.5e-15  _wide-facet 1.7e-14
***** testif HAVE_QHULL <*56515>
 x = [ 0, 0; 1, 1; 0, 1; 1, 0 ];
 y = [ 1; 2; 3; 4 ];
 xi = [ .5, .5 ];
 yi = griddatan (x, y, xi);
!!!!! regression: https://octave.org/testfailure/?56515
__delaunayn__: qhull failed
PASSES 2 out of 3 tests



Dmitri.
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