VTK: Regression with the update of Ubuntu docker images

[sloriot]

We now have in BGL test the following error in test_bgl_read_write

2024-06-10 00:52:06.126 (  36.851s) [        927E6940]       vtkXMLParser.cxx:375    ERR| vtkXMLDataParser (0x55feeedbe110): Error parsing XML in stream at line 17, column 0, byte index 629: not well-formed (invalid token)
2024-06-10 00:52:06.127 (  36.851s) [        927E6940]       vtkExecutive.cxx:752    ERR| vtkCompositeDataPipeline (0x55feeedbecf0): Algorithm vtkXMLPolyDataReader(0x55feeedd0b80) returned failure for request: vtkInformation (0x55feeeed9940)
  Debug: Off
  Modified Time: 90
  Reference Count: 1
  Registered Events: (none)
  Request: REQUEST_INFORMATION
  ALGORITHM_AFTER_FORWARD: 1
  FORWARD_DIRECTION: 0


test_bgl_read_write: /mnt/testsuite/test/BGL/test_bgl_read_write.cpp:788: void test_bgl_VTP(const char*, bool) [with Mesh = CGAL::Polyhedron_3<CGAL::Simple_cartesian<double>, CGAL::Polyhedron_items_with_id_3>; K = CGAL::Simple_cartesian<double>]: Assertion `ok' failed.`

VTK version on this plateform is vtk-9.1
Maybe the error is specific to this vtk version

[sloriot]

More information on the issue:

The package version is libvtk9-dev is (9.1.0+really9.1.0+dfsg2-7.1build3). I locally have libvtk9-dev is (9.1.0+really9.1.0+dfsg2-5) and don't have any issue.

The error happens in BGL/test/BGL/test_bgl_read_write.cpp:788 while reading data/bones.vtp. Replacing that file with other vtp files (from CGAL or even official vtk repo) trigger the same error.

The output while running the failing version of the program is:

2024-08-19 11:26:10.731 (   7.401s) [        F61D1940]       vtkXMLParser.cxx:375    ERR| vtkXMLDataParser (0x5555559b4f00): Error parsing XML in stream at line 72, column 0, byte index 3807: junk after document element
2024-08-19 11:26:10.731 (   7.401s) [        F61D1940]       vtkExecutive.cxx:752    ERR| vtkCompositeDataPipeline (0x5555559b6780): Algorithm vtkXMLPolyDataReader(0x5555559c2e80) returned failure for request: vtkInformation (0x5555559c4fb0)
  Debug: Off
  Modified Time: 90
  Reference Count: 1
  Registered Events: (none)
  Request: REQUEST_INFORMATION
  ALGORITHM_AFTER_FORWARD: 1
  FORWARD_DIRECTION: 0


ERROR is : ERROR: In ./IO/XML/vtkXMLReader.cxx, line 521
vtkXMLPolyDataReader (0x5555559c2e80): Error parsing input file.  ReadXMLInformation aborting.


test_bgl_read_write: /cgal/BGL/test/BGL/test_bgl_read_write.cpp:788: void test_bgl_VTP(const char*, bool) [with Mesh = CGAL::Polyhedron_3<CGAL::Simple_cartesian<double>, CGAL::Polyhedron_items_with_id_3>; K = CGAL::Simple_cartesian<double>]: Assertion `ok' failed.

I don't think there is a bug on CGAL side and except installing manually a new vtk version on the ubuntu used I don't have a solution.

[sloriot]

The problem seems to come from libexpat1-dev. The vtk package on ubuntu was built with libexpat1-dev 2.6.1 while my system version is 2.5 (guessed from this thread)

[sloriot]

Should be "fixed" by CGAL/cgal-testsuite-dockerfiles#163