public void CanEnumerateDepthFirstSearch()
{
var tree = new BinarySearchTree<int, int>(new[] {3, 2, 1, 2, 4, 3}.AsKeyValueList());
var expected = new[] {3, 2, 1, 2, 4, 3};
CollectionAssert.AreEqual(expected, tree.DepthFirstSearchEnumerator().Select(_ => _.Value).ToList());
}
public void AppearInRootAfterAddingFirstElement()
{
var tree = new BinarySearchTree<int, int>();
var element = 1.AsKeyValue();
tree.Insert(element);
Assert.IsTrue(tree.BreadthFirstSearchEnumerator().Contains(element));
Assert.IsTrue(tree.DepthFirstSearchEnumerator().Contains(element));
}
public void CountInEnumeratorsMustMatchCountInTree()
{
var tree = new BinarySearchTree<int, int>();
tree.Insert(1.AsKeyValue());
tree.Insert(3.AsKeyValue());
tree.Insert(2.AsKeyValue());
Assert.AreEqual(3, tree.BreadthFirstSearchEnumerator().Count());
Assert.AreEqual(3, tree.DepthFirstSearchEnumerator().Count());
}