public void Detach_not_set_node_must_not_throw_an_expetion()
{
var root = new BinaryTreeSpec(1);
root.DetachLeftNode();
root.DetachRightNode();
Assert.IsFalse(root.HasLeft);
}
public void Detach_right_node_must_clear_relationship_in_both_ways()
{
var root = new BinaryTreeSpec(1);
var right = new BinaryTreeSpec(3);
root.SetRigth(right);
root.DetachRightNode();
Assert.IsFalse(root.HasLeft);
Assert.IsTrue(right.IsRoot);
}