[CMake] test executable failing only when run in ctest

[Matthew Leotta]

On Jan 26, 2009, at 3:04 PM, Brad King wrote:

> Matthew Leotta wrote:
>> Brad,
>>
>>  Thanks, but I'm not sure if I completely understand your suggestion.
>> Let me clarify.  If I run the test executable
>>
>> ./bvxm_test_all
>>
>> I get no errors and no segfault.  I know how to debug this, but  
>> there is
>> nothing to debug.  If in the same directory I run
>>
>> ctest
>>
>> then the test will segfault.  Even stranger, on some platforms the  
>> test
>> passes, but when I run in ctest it fails (produces the wrong  
>> values) but
>> does not segfault.  On some other platforms everything seems to work
>> both with and without ctest.
>>
>> I'm actually running only the specific test that fails (the 5th  
>> one) with
>>
>> ./bvxm_test_all test_amp_processors
>>
>> or
>>
>> ctest -V -I 5,5
>>
>> but the results are the same.  When I try to debug ctest I never hit
>> breakpoints in bvxm_test_all because ctest spawns off a separate  
>> process
>> for bvxm_test_all, and gdb is attached to ctest.  I'm not much of an
>> expert on using gdb from the command line, I usually debug with an  
>> IDE
>> front end (XCode or KDevelop).
>
> add_test(run_xterm xterm)
>
> $ ctest -R run_xterm
>
> Then run gdb and the test inside the xterm to see if it fails.  It  
> could
> be an environment difference.
>
> -Brad
>

It runs fine from within xterm when xterm is launched as a test by  
ctest.  I suppose this means that the environment setup by ctest is  
not the culprit.  Any other suggestions?

Matt