public async void DeviceActionsByDeviceId_Not_Exists() { var mock = new ServiceMockFacade <IDeviceService, IDeviceRepository>(); mock.RepositoryMock.Setup(x => x.DeviceActionsByDeviceId(default(int), It.IsAny <int>(), It.IsAny <int>())).Returns(Task.FromResult <List <DeviceAction> >(new List <DeviceAction>())); var service = new DeviceService(mock.LoggerMock.Object, mock.MediatorMock.Object, mock.RepositoryMock.Object, mock.ModelValidatorMockFactory.DeviceModelValidatorMock.Object, mock.DALMapperMockFactory.DALDeviceMapperMock, mock.DALMapperMockFactory.DALDeviceActionMapperMock); List <ApiDeviceActionServerResponseModel> response = await service.DeviceActionsByDeviceId(default(int)); response.Should().BeEmpty(); mock.RepositoryMock.Verify(x => x.DeviceActionsByDeviceId(default(int), It.IsAny <int>(), It.IsAny <int>())); }