The test `TestKhiops/TextVariables/TextLoadFile` provokes segmentation fault in macOS

[folmos-at-orange]

Description

The test TestKhiops/TextVariable/TextLoadFile which tests reading texts from paths specified in a data table provokes a segmentation fault in macOS.

Questions/Ideas

• Offending line: https://github.com/KhiopsML/khiops/blob/a8c4d087647e6de007f7d7edb23f84e58ac190b5/src/Norm/base/InputBufferedFile.cpp#L2638
  • The return to SystemFile::Read returns -1, then this result is used to allocate memory.
• Quick fix: In the same method instead of testing nLocalRead != 0 test nLocalRead > 0.
• The real fix requires investigating why in at the lowest level fread returns -1 in macOS
• Additionally, the quick fix showed that the output of the test should be specialised for macOS
  • from kht_apply logs command :

    ...
    /Users/folmos/work/khiops/test/LearningTest/TestKhiops/TextVariables/TextLoadFile/results/err.txt
    line 8 field 1 warning : File ./results : Unable to read file (Is a directory) -> warning : File ./results : Unable to open file (Permission denied)
    1 error(s)
    ...

Context

• 10.5.0-b.1
• End-to-end test: TestKhiops/TextVariables/TextLoadFile