GetSkills.Controllers.ManageController.LinkLoginCallback C# (CSharp) Method

        public async Task<ActionResult> LinkLoginCallback()
        {
            var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync(XsrfKey, User.Identity.GetUserId());
            if (loginInfo == null)
            {
                return RedirectToAction("ManageLogins", new { Message = ManageMessageId.Error });
            }
            var result = await UserManager.AddLoginAsync(User.Identity.GetUserId(), loginInfo.Login);
            return result.Succeeded ? RedirectToAction("ManageLogins") : RedirectToAction("ManageLogins", new { Message = ManageMessageId.Error });
        }

        public void ManageController_LinkLoginCallback_Test()
        {
            // Initialization
            ManageController ctl = new ManageController();

            // To test if it is null
            var result = ctl.LinkLoginCallback();
            Assert.IsNotNull(result);
        }