[Octave-bug-tracker] [bug #54180] libinterp/corefcn/file-io.cc-tst failure and weird output when test suite is run twice

[Andrew Janke]

URL:
  <http://savannah.gnu.org/bugs/?54180>

                 Summary: libinterp/corefcn/file-io.cc-tst failure and weird
output when test suite is run twice
                 Project: GNU Octave
            Submitted by: apjanke
            Submitted on: Sun 24 Jun 2018 10:51:00 PM UTC
                Category: Test Suite
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.0
        Operating System: Mac OS

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Details:

This is in Octave 4.4.0 on macOS 10.13.5, built with the Qt GUI.

When I run `__run_test_suite__` twice in a row inside the Qt GUI, the
`libinterp/corefcn/file-io.cc-tst` produces some weird output and fails one
test on the second and later runs.

>From the second run:


  libinterp/corefcn/file-io.cc-tst ............................ans =
{
  [1,1] =

       2
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     100

}

 PASS     89/90
                                                                  FAIL    1


>From the third and later runs:


  libinterp/corefcn/file-io.cc-tst ............................ans =
{
  [1,1] = [](0x1)
}

 PASS     89/90
                                                                  FAIL    1


This is only when running the test suite in the GUI; it doesn't seem to happen
when run in command line mode.

Full test results (from the fourth run in a session) attached.




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