public async void MachinePolicyId_Create_length()
        {
            Mock <IMachineRepository> machineRepository = new Mock <IMachineRepository>();

            machineRepository.Setup(x => x.Get(It.IsAny <string>())).Returns(Task.FromResult(new Machine()));

            var validator = new ApiMachineRequestModelValidator(machineRepository.Object);
            await validator.ValidateCreateAsync(new ApiMachineRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.MachinePolicyId, new string('A', 51));
        }
        public async void LastIpAddress_Update_null()
        {
            Mock <IMachineRepository> machineRepository = new Mock <IMachineRepository>();

            machineRepository.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult(new Machine()));

            var validator = new ApiMachineRequestModelValidator(machineRepository.Object);
            await validator.ValidateUpdateAsync(default(int), new ApiMachineRequestModel());

            validator.ShouldHaveValidationErrorFor(x => x.LastIpAddress, null as string);
        }
        private async void BeUniqueByName_Update_Not_Exists()
        {
            Mock <IMachineRepository> machineRepository = new Mock <IMachineRepository>();

            machineRepository.Setup(x => x.ByName(It.IsAny <string>())).Returns(Task.FromResult <Machine>(null));
            var validator = new ApiMachineRequestModelValidator(machineRepository.Object);

            await validator.ValidateUpdateAsync(default(string), new ApiMachineRequestModel());

            validator.ShouldNotHaveValidationErrorFor(x => x.Name, "A");
        }