* Test method for {@link com.neuralnetwork
* .shared.links.Link#setHead(com.neuralnetwork.shared.neurons.INeuron)}.
*/
@Test
public final void testSetHead() {
IHiddenNeuron h = new HiddenNeuron();
IHiddenNeuron t = new HiddenNeuron();
ILink l = new Link(h, t, new OneValue());
l.setHead(t);
assertEquals(l.getHead(), t);
try {