skip tests if opt dependency aren't available.

theano/sandbox/cuda/tests/test_fftconv.py

@@ -7,8 +7,14 @@ from theano.tests import unittest_tools as utt
 # Skip tests if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
 import theano.sandbox.cuda as cuda_ndarray
-if cuda_ndarray.cuda_available == False:
-    raise SkipTest('Optional package cuda disabled')
+if not cuda_ndarray.cuda_available:
+    raise SkipTest('Optional package cuda not available')
+from theano.misc.pycuda_init import pycuda_available
+if not pycuda_available:
+    raise SkipTest('Optional package pycuda not available')
+from theano.sandbox.cuda.fftconv import scikits_cuda_available
+if not scikits_cuda_available:
+    raise SkipTest('Optional package scikits.cuda not available')
 
 from theano.sandbox.cuda import float32_shared_constructor as shared
 import theano.sandbox.cuda.fftconv