public void AllElementsConnectedToANodeCanBeFound()
{
IList <IFiniteElement> results = SUT.GetAllElementsConnectedTo(node1);
Assert.IsNotNull(results);
Assert.AreEqual(1, results.Count);
Assert.IsTrue(results.Contains(spring1));
results = SUT.GetAllElementsConnectedTo(node2);
Assert.IsNotNull(results);
Assert.AreEqual(2, results.Count);
Assert.IsTrue(results.Contains(spring1));
Assert.IsTrue(results.Contains(spring2));
results = SUT.GetAllElementsConnectedTo(node3);
Assert.IsNotNull(results);
Assert.AreEqual(1, results.Count);
Assert.IsTrue(results.Contains(spring2));
FiniteElementNode unconnectedNode = nodeFactory.CreateFor2DTruss(0, 3);
results = SUT.GetAllElementsConnectedTo(unconnectedNode);
Assert.IsNotNull(results);
Assert.AreEqual(0, results.Count);
}