public void ValidLoginCheck()
        {
            TfsTeamWorkItemService service = new TfsTeamWorkItemService();
            bool success = service.Authenticate(Settings.tfsUrl, "jchakraborty", "jchakraborty", "ids");

            Assert.IsTrue(success);
        }
        public void InvalidLoginCheck()
        {
            TfsTeamWorkItemService service = new TfsTeamWorkItemService();

            service.Authenticate(Settings.tfsUrl, "jchakraborty", "jchakraborty1", "ids");
        }