public void Test8()
        {
            Triangle triChk = new Triangle();

            int[] try1 = { 5, 5, 4 };
            Assert.AreEqual("isosceles", TriangleSolver.Analyse(try1));
            Assert.Pass();
        }
        public void Test7()
        {
            Triangle triChk = new Triangle();

            int[] try1 = { 2147483647, 2147483647, 2147483647 };
            Assert.AreEqual("invalid", TriangleSolver.Analyse(try1));
            Assert.Pass();
        }
        public void Test5()
        {
            Triangle triChk = new Triangle();

            int[] try1 = { 1000, 1000, 1000 };
            Assert.AreEqual("Equilateral", TriangleSolver.Analyse(try1));
            Assert.Pass();
        }
        public void Test6()
        {
            Triangle triChk = new Triangle();

            int[] try1 = { 2147483647 / 2, 2147483647 / 2, 2147483647 / 2 };
            Assert.AreEqual("Equilateral", TriangleSolver.Analyse(try1));
            Assert.Pass();
        }
        public void Test4()
        {
            Triangle triChk = new Triangle();

            int[] try1 = { 12, 9, 8 };
            Assert.AreEqual("Scalene", TriangleSolver.Analyse(try1));
            Assert.Pass();
        }