public void TestCyclicDependency()
        {
            string testexample     = "a=>" + "\r\n" + "b=>c" + "\r\n" + "c=>f" + "\r\n" + "d=>a" + "\r\n" + "e=>" + "\r\n" + "f=>b";
            string expectedresult  = "Cyclic Dependency.";
            IStringManipulations s = new StringManipulations();

            Assert.AreEqual(s.JobDependencey(testexample), expectedresult);
        }
        public void TestSelfDependency()
        {
            string testexample     = "a=>" + "\r\n" + "b=>" + "\r\n" + "c=>c";
            string expectedresult  = "Jobs cannot Depend on themselves.";
            IStringManipulations s = new StringManipulations();

            Assert.AreEqual(s.JobDependencey(testexample), expectedresult);
        }