public void MinimumValue() { var tree = new BinarySearchTree<int> {15, 6, 18, 3}; Assert.That(tree.Minimum(), Is.EqualTo(3)); }
public void MinimumCalledOnEmptyTreeCausesException() { var tree = new BinarySearchTree<int>(); Assert.Throws<InvalidOperationException>(() => tree.Minimum()); }