def test_add_input_connection(self):
connections = len(self.node.input_connections)
self.node.add_input_connection(Connection(ProtoNode(), self.node))
self.assertEqual(connections + 1, len(self.node.input_connections))
self.failUnlessRaises(ValueError, self.node.add_input_connection,
Connection(Node(), Node()))
def setUp(self):
self.node = ProtoNode()
self.node._activation_type = ACTIVATION_SIGMOID
self.node._error_func = sigmoid_derivative
