public async void ByName_Not_Exists()
{
var mock = new ServiceMockFacade <IMachineRepository>();
mock.RepositoryMock.Setup(x => x.ByName(It.IsAny <string>())).Returns(Task.FromResult <Machine>(null));
var service = new MachineService(mock.LoggerMock.Object,
mock.RepositoryMock.Object,
mock.ModelValidatorMockFactory.MachineModelValidatorMock.Object,
mock.BOLMapperMockFactory.BOLMachineMapperMock,
mock.DALMapperMockFactory.DALMachineMapperMock);
ApiMachineResponseModel response = await service.ByName(default(string));
response.Should().BeNull();
mock.RepositoryMock.Verify(x => x.ByName(It.IsAny <string>()));
}