public void Destroy_ShouldProduceDesiredResults()
{
// Arrange.
var leafNodeOne = new TestTreeNode(1);
var leafNodeTwo = new TestTreeNode(2);
var leafNodeThree = new TestTreeNode(3);
var leafNodeFour = new TestTreeNode(4);
var leafNodeFive = new TestTreeNode(5);
var targetNode = new TestTreeNode(9, new TestTreeNode[]
{
leafNodeOne,
new TestTreeNode(12, new TestTreeNode[]
{
leafNodeFive
})
});
var rootNode = new TestTreeNode(6, new TestTreeNode[]
{
new TestTreeNode(7, new TestTreeNode[]
{
targetNode
}),
new TestTreeNode(8, new TestTreeNode[]
{
new TestTreeNode(10, new TestTreeNode[]
{
leafNodeTwo
}),
new TestTreeNode(11, new TestTreeNode[]
{
leafNodeThree,
leafNodeFour
})
})
});
// Act.
targetNode.Destroy();
// Assert.
targetNode.Value.Should().Be(0);
targetNode.Parent.Should().BeNull();
targetNode.Children.Count().Should().Be(0);
rootNode.Children.First().IsLeaf.Should().BeTrue();
}
