public async Task AbrirComandaServiceTest() { int idComanda = 5; var repository = new Mock <IComandaRepository>(); repository.Setup(s => s.AbrirComandaAsync()) .Returns(Task.Run(() => idComanda)); var service = new ComandaService(repository.Object); var result = await service.AbrirComandaAsync(); Assert.Equal(result, idComanda); }