test for viewop on GPU

theano/compile/tests/test_viewop.py

+import numpy
+import unittest
+from nose.plugins.skip import SkipTest
+
+import theano
+
+mode_with_opt = theano.compile.mode.get_default_mode()
+mode_with_gpu = theano.compile.mode.get_default_mode().including('gpu')
+
+
+def test_viewop_gpu():
+    from theano.sandbox import cuda
+    if cuda.cuda_available == False:
+        raise SkipTest('Optional package cuda disabled')
+    _x = theano.tensor.fvector('x')
+    x = cuda.gpu_from_host(_x)
+    out = theano.compile.function_module.ViewOp()(x)
+    f = theano.function([x],
+                        [theano.compile.function_module.ViewOp()(x)],
+                       mode=mode_with_gpu)
+    data = numpy.array([1, 2, 3], dtype='float32')
+    assert numpy.allclose(f(data), data)