private static void CreatePrinter()
{
System.Console.Clear();
System.Console.WriteLine("Enter printer name");
string name = System.Console.ReadLine();
System.Console.WriteLine("Enter printer model");
string model = System.Console.ReadLine();
service.Add(PrintersFabric.Create(name, model));
}
public void Add_NullPrinter_ArgumentNullException() => Assert.Catch <ArgumentNullException>(() => printerService.Add(null));