/// <summary>
///A test for GetNode
///</summary>
public void GetNodeTestHelper(ref SortedTree <ClassAsTreeValue <string> > tree)
{
AddNodeTestHelper(ref tree);
SortedTree <ClassAsTreeValue <string> > .SortedTreeNode node = tree.GetNode(A);
Assert.IsTrue(node != null, "there should be one (A) element on the tree");
Assert.AreEqual(node.Value, A);
}
