public void SuccessWhenRemoveNodeRightChildNoLeftChild()
{
//arrange
var vm = new BinaryTree();
var rightChildHasNoLeft = new List<Node>
{
new Node{Value = 4, IsExpanded = true, IsSelected = true},
new Node{Value = 6, IsExpanded = true},
new Node{Value = 5, IsExpanded = true},
new Node{Value = 7, IsExpanded = true},
new Node{Value = 8, IsExpanded = true},
};
rightChildHasNoLeft.ForEach(vm.AddSearchNode);
var sixthNode = rightChildHasNoLeft.First(t => t.Value == 6);
//act
vm.RemoveNodeEntrance(sixthNode);
//assert
Assert.IsFalse(vm.Contains(sixthNode));
Assert.IsTrue(vm.HeadNode.RightNode.Value == 7);
Assert.IsTrue(vm.HeadNode.RightNode.LeftNode.Value == 5);
Assert.IsTrue(vm.HeadNode.RightNode.RightNode.Value == 8);
}
public void SuccessWhenRemoveNodeNorightChild()
{
//arrange
var vm = new BinaryTree();
vm.AddDefaultTreeCommand.Execute(null);
var eightNode = BinaryTree.NodeList.First(t => t.Value == 8);
//act
vm.RemoveNodeEntrance(eightNode);
//assert
Assert.IsFalse(vm.Contains(eightNode));
Assert.IsTrue(vm.HeadNode.RightNode.Value == 6);
Assert.IsTrue(vm.HeadNode.RightNode.LeftNode.Value == 5);
Assert.IsTrue(vm.HeadNode.RightNode.RightNode.Value == 7);
}