unittest fail when CUDA device not available

[paskino]

The current method used to detect CUDA availability fails miserably

import astra
use_cuda = True
try:
    astra.test_CUDA()
except RuntimeError as re:
    print (re)
    use_cuda = False
except:
    print ("Crash!")
    use_cuda = False

The error is the following and is not properly handled in Python, I suppose

Error: CUDA error 35: CUDA driver version is insufficient for CUDA runtime version.
Error: Failed to allocate 32x2 GPU buffer
python: ./../../src/CudaForwardProjectionAlgorithm.cpp:276: virtual void astra::CCudaForwardProjectionAlgorithm::run(int): Assertion `ok' failed.

[gfardell]

It looks like the cuda version that's been chosen with astra is higher than the drivers support. What happened? it didn't get caught as an exception?