public void GetHashCode_WhenDifferent_NotEqual()
{
TreeNode node1 = new TreeNode("Node1");
TreeNode node2 = new TreeNode("Node2");
Assert.AreNotEqual(node1.GetHashCode(), node2.GetHashCode());
}
public void GetHashCode_WhenSame_Equal()
{
TreeNode node1 = new TreeNode("Node1");
TreeNode node2 = new TreeNode("Node1");
Assert.AreEqual(node1.GetHashCode(), node2.GetHashCode());
}