public void Suffix_Smoke_Test()
{
var tree = new SuffixTree <char>();
tree.Insert("bananaa".ToCharArray());
Assert.IsTrue(tree.Count == 1);
//IEnumerable test
Assert.AreEqual(tree.Count, tree.Count());
Assert.IsTrue(tree.Contains("aa".ToCharArray()));
Assert.IsFalse(tree.Contains("ab".ToCharArray()));
var matches = tree.StartsWith("na".ToCharArray());
Assert.IsTrue(matches.Count == 2);
matches = tree.StartsWith("an".ToCharArray());
Assert.IsTrue(matches.Count == 2);
tree.Delete("bananaa".ToCharArray());
Assert.IsTrue(tree.Count == 0);
//IEnumerable test
Assert.AreEqual(tree.Count, tree.Count());
}