Re: [Discuss-gnuradio] howto example error

[Michael Dickens]

Hi Pengyu - The way testing works right now under OSX (assuming you're using 
OSX and MacPorts, yes?), you have to specify -all- of the dependency paths 
correctly before calling GR_ADD_TEST.  The "test_howto" is probably a C++ 
compiled executable, which CMake will know how to link correctly because of 
dependencies already specified; it does not currently call GR_ADD_TEST.  But 
"qa_square_ff" is probably a Python script, which means that the PYTHONPATH and 
DYLD_LIBRARY_PATH must be set in a shell script in order to find the correct 
files (python script and the just built swig-ified library).

Inside your "gr-howto/build" directory, if you do
{{{
find . -name "*.sh"
}}}
it should list at least 1 script.  If you look through those found, you'll 
figure out which one is called for "qa_square_ff" 
("gr-howto/build/python/qa_square_ff_test.sh").  You'll see PYTHONPATH and 
DYLD_LIBRARY_PATH being set to something, but probably not quite what you want.

What you do to correct this is, just before the call to GR_ADD_TEST in 
gr-howto/python/CMakeLists.txt, you set "GR_TEST_LIBRARY_DIRS" to the 
top-level's "lib" build directory, and GR_TEST_PYTHON_DIRS to the top-level's 
"python/howto" directory.  When you re-run cmake, find the shell script and the 
correct PYTHONPATH and DYLD_LIBRARY_PATH should now be set.  With these paths 
correct, "make test" should now function.

I hope this helps.  Feel free to ping me off-list and I'll work you through 
this in greater detail. - MLD

ps> I'm currently working on fixing this issue to work with much greater 
robustness than the current model ... but it's just a "work in progress" branch 
right now & won't be integrated until probably mid-summer.

On May 22, 2014, at 5:25 PM, Pengyu Zhang <address@hidden> wrote:
> I'm playing with the howto example as shown by the following link on a 
> Macbook Pro machine.
> 
> http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules
> 
> I can go until $make. When I run $make test, an error pops up and shows
> 
> $ make test
> Running tests...
> Test project /Users/pzhang/tmp/gr-howto/build
>     Start 1: test_howto
> 1/2 Test #1: test_howto .......................   Passed    0.02 sec
>     Start 2: qa_square_ff
> 2/2 Test #2: qa_square_ff .....................***Failed    0.55 sec
> 
> 50% tests passed, 1 tests failed out of 2
> 
> Total Test time (real) =   0.59 sec
> 
> The following tests FAILED:
>         2 - qa_square_ff (Failed)
> Errors while running CTest
> make: *** [test] Error 8
> 
> I tried $ctest -V, the error message shows
> 
> $ ctest -V
> UpdateCTestConfiguration  from 
> :/Users/pzhang/tmp/gr-howto/build/DartConfiguration.tcl
> UpdateCTestConfiguration  from 
> :/Users/pzhang/tmp/gr-howto/build/DartConfiguration.tcl
> Test project /Users/pzhang/tmp/gr-howto/build
> Constructing a list of tests
> Done constructing a list of tests
> Checking test dependency graph...
> Checking test dependency graph end
> test 1
>     Start 1: test_howto
> 
> 1: Test command: /bin/sh 
> "/Users/pzhang/tmp/gr-howto/build/lib/test_howto_test.sh"
> 1: Test timeout computed to be: 9.99988e+06
> 1:
> 1:
> 1/2 Test #1: test_howto .......................   Passed    0.02 sec
> test 2
>     Start 2: qa_square_ff
> 
> 2: Test command: /bin/sh 
> "/Users/pzhang/tmp/gr-howto/build/python/qa_square_ff_test.sh"
> 2: Test timeout computed to be: 9.99988e+06
> 2: Fatal Python error: PyThreadState_Get: no current thread
> 2: /Users/pzhang/tmp/gr-howto/build/python/qa_square_ff_test.sh: line 7: 
> 36036 Abort trap: 6           
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2 
> /Users/pzhang/tmp/gr-howto/python/qa_square_ff.py
> 2/2 Test #2: qa_square_ff .....................***Failed    0.52 sec
> 
> 50% tests passed, 1 tests failed out of 2
> 
> Total Test time (real) =   0.56 sec
> 
> The following tests FAILED:
>         2 - qa_square_ff (Failed)
> Errors while running CTest
> 
> It seems that the following command does not execute correctly. 
> 
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2 
> /Users/pzhang/tmp/gr-howto/python/qa_square_ff.py
> 
> Therefore I enter this command in the terminal and an error shows
> 
> $/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2 
> /Users/pzhang/tmp/gr-howto/python/qa_square_ff.py
> Traceback (most recent call last):
>   File "/Users/pzhang/tmp/gr-howto/python/qa_square_ff.py", line 24, in 
> <module>
>     import howto_swig as howto
> ImportError: No module named howto_swig
> 
> I suppose howto_swig should be added to the python path by gr_modtool. Any 
> idea how could I get over this problem? Thanks.