public void TestSetData()
{
Employee emp1 = new Employee(1);
Node <Employee> node1 = new Node <Employee>();
node1.SetData(emp1);
Assert.That(node1.GetData(), Is.EqualTo(emp1));
}
/// <summary>
/// Change the supplied node's data to the data value passed
/// </summary>
/// <param name="newData">The new data to set</param>
/// <param name="node">The node to have its data replaced</param>
/// <returns>The old data from the node</returns>
private T SetData(T newData, Node <T> node)
{
T oldData = node.GetData();
node.SetData(newData);
return(oldData);
}