public void GetUrlTest(string id) { // Arrange. IDataAccess demoDataAccess = new DemoDataAccess(); IServersManager serversManager = new ServersManager(demoDataAccess); ServersController serversController = new ServersController(serversManager); // Act. ActionResult <Server> actionResult = serversController.GetUrl(id); // Assert. ObjectResult expectedResult; Server server = demoDataAccess.GetServerByIdOfFlight(id); if (server != null) { expectedResult = new OkObjectResult(server); } else { expectedResult = new NotFoundObjectResult(id); } Assert.IsInstanceOfType(actionResult.Result, expectedResult.GetType()); }