AlgoLib.Tests.TrieTests.Remove C# (CSharp) Method

        public void Remove()
        {
            const int InitialCount = 5;

            var trie = new Trie<bool>
                {
                    { "ABC", false }, { "AB", false }, { "ADE", false }, { "ABCDE", false }, { "X", false }
                };

            Assert.IsFalse((trie as IDictionary<string, bool>).Remove(new KeyValuePair<string, bool>("XY", true)));
            Assert.IsFalse((trie as IDictionary<string, bool>).Remove(new KeyValuePair<string, bool>("ABCD", true)));
            Assert.IsFalse((trie as IDictionary<string, bool>).Remove(new KeyValuePair<string, bool>("ABCDE", true)));
            Assert.AreEqual(InitialCount, trie.Count);
            Assert.IsTrue((trie as IDictionary<string, bool>).Remove(new KeyValuePair<string, bool>("ABCDE", false)));
            Assert.AreEqual(InitialCount - 1, trie.Count);
            Assert.IsTrue(trie.Remove("X"));
            Assert.AreEqual(InitialCount - 2, trie.Count);
            Assert.IsTrue(trie.Remove("ABC"));
            Assert.AreEqual(InitialCount - 3, trie.Count);
            Assert.IsFalse(trie.ContainsKey("ABC"));
            Assert.IsTrue(trie.ContainsKey("AB"));
            Assert.IsTrue(trie.ContainsKey("ADE"));
        }