public void Return_CustomerDto_When_Id_Supplied()
{
MockCustomerRepo.Setup(c => c.FetchCustomerById(It.IsAny <int>()))
.ReturnsAsync(CreateNewCustomer());
var result = CustomerServiceSut.FetchCustomerById(12);
Assert.NotNull(result.Result);
Assert.IsType <CustomerDto>(result.Result);
Assert.Equal(12, result.Result.Id);
}
public void Return_Null_When_Id_Zero()
{
var result = CustomerServiceSut.FetchCustomerById(0);
Assert.Null(result.Result);
}
