fix test import

theano/sandbox/cuda/tests/test_basic_ops.py

@@ -11,7 +11,7 @@ import theano.tensor as T
 # Skip test if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
 try:
-    import cuda_ndarray.cuda_ndarray as cuda_ndarray
+    import theano.sandbox.cuda as cuda_ndarray
 except ImportError:
     raise SkipTest('Optional package cuda_ndarray not available')
 

theano/sandbox/cuda/tests/test_blas.py

@@ -8,7 +8,7 @@ import numpy
 # Skip test if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
 try:
-    import cuda_ndarray
+    import theano.sandbox.cuda as cuda_ndarray
 except ImportError:
     raise SkipTest('Optional package cuda_ndarray not available')
 

theano/sandbox/cuda/tests/test_nnet.py

@@ -14,7 +14,7 @@ import numpy
 # Skip test if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
 try:
-    import cuda_ndarray
+    import theano.sandbox.cuda as cuda_ndarray
 except ImportError:
     raise SkipTest('Optional package cuda_ndarray not available')
 

theano/sandbox/cuda/tests/test_opt.py

@@ -8,7 +8,7 @@ import numpy
 # Skip test if cuda_ndarray is not available.
 from nose.plugins.skip import SkipTest
 try:
-    import cuda_ndarray
+    import theano.sandbox.cuda as cuda_ndarray
 except ImportError:
     raise SkipTest('Optional package cuda_ndarray not available')