示例#1
0
        public void TryAddBijectionTest()
        {
            var bijective = new Bijective <string, int>();

            bijective["A"] = 10;

            Assert.IsFalse(bijective.TryAddBijection("A", 10));
            Assert.IsFalse(bijective.TryAddBijection("B", 10));
            Assert.IsFalse(bijective.TryAddBijection("A", 20));
            Assert.IsTrue(bijective.TryAddBijection("B", 20));

            Assert.IsTrue(bijective.LeftElementExists("B"));
            Assert.IsTrue(bijective.RightElementExists(20));

            var allLeftElementsList = new List <string>(bijective.GetAllLeftElements());

            Assert.AreEqual(2, allLeftElementsList.Count);
            Assert.IsTrue(allLeftElementsList.Contains("B"));

            var allRightElementsList = new List <int>(bijective.GetAllRightElements());

            Assert.AreEqual(2, allRightElementsList.Count);
            Assert.IsTrue(allRightElementsList.Contains(20));

            Assert.IsFalse(bijective.CanAddBijection("B", 20));
            Assert.IsFalse(bijective.CanAddReverseBijection(20, "B"));

            Tuple <string, int> bijection;

            Assert.IsTrue(bijective.TryGetBijection("B", out bijection));
            Assert.AreEqual("B", bijection.Item1);
            Assert.AreEqual(20, bijection.Item2);

            Tuple <int, string> reverseBijection;

            Assert.IsTrue(bijective.TryGetReverseBijection(20, out reverseBijection));
            Assert.AreEqual(20, reverseBijection.Item1);
            Assert.AreEqual("B", reverseBijection.Item2);

            var allBijectionsList = new List <Tuple <string, int> >(bijective.GetAllBijections());

            Assert.AreEqual(2, allBijectionsList.Count);
            Assert.IsTrue(allBijectionsList.Select(b => b.Item1).Contains("B"));
            Assert.IsTrue(allBijectionsList.Select(b => b.Item2).Contains(20));

            var allReverseBijectionsList = new List <Tuple <int, string> >(bijective.GetAllReverseBijections());

            Assert.AreEqual(2, allReverseBijectionsList.Count);
            Assert.IsTrue(allReverseBijectionsList.Select(b => b.Item1).Contains(20));
            Assert.IsTrue(allReverseBijectionsList.Select(b => b.Item2).Contains("B"));
        }