public void ItemsGet()
{
var trie = new Trie<bool>();
trie.Add("ABC", false);
trie.Add("AB", false);
trie.Add("ADE", true);
trie.Add("ABCDE", false);
Assert.AreEqual(false, trie["ABC"]);
Assert.AreEqual(false, trie["AB"]);
Assert.AreEqual(true, trie["ADE"]);
Assert.AreEqual(false, trie["ABCDE"]);
}