--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/_test_xlogx.py	Thu Sep 04 14:46:17 2008 -0400
@@ -0,0 +1,27 @@
+from xlogx import xlogx
+
+import unittest
+from theano import compile
+from theano import gradient
+
+from theano.tensor import as_tensor
+import theano._test_tensor as TT
+
+import random
+import numpy.random
+
+class T_XlogX(unittest.TestCase):
+    def test0(self):
+        x = as_tensor([1, 0])
+        y = xlogx(x)
+        y = compile.eval_outputs([y])
+        self.failUnless(numpy.all(y == numpy.asarray([0, 0.])))
+    def test1(self):
+        class Dummy(object):
+            def make_node(self, a):
+                return [xlogx(a)[:,2]]
+        TT.verify_grad(self, Dummy(), [numpy.random.rand(3,4)])
+
+
+if __name__ == '__main__':
+    unittest.main()