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