public void BoardService_AgregarTableroConUnaIdFaltante() { var boardService = new Mock <IBoardService>(); var mapper = new Mock <IMapper>(); mapper.Setup(m => m.Map <BoardDto, Board>(It.IsAny <BoardDto>())).Returns(new Board()); // Arrange var controller = new BoardController(boardService.Object, mapper.Object); // Act BoardRegisterDto model = new BoardRegisterDto { Player1Id = "1", Player2Id = "" }; boardService.Setup(s => s.Save(model)) .Returns(new ServiceResult <Board> { isSuccess = true, Errors = new List <string> { "Error" } } ); // Assert IActionResult response = controller.Agregar(model); Console.WriteLine(response); Assert.AreEqual(response.GetType(), new BadRequestObjectResult("").GetType()); }