C: A01 LIST "" "*"
  S: * LIST (\Marked \NoInferiors) "/" "inbox"
  S: * LIST () "/" "Fruit"
  S: * LIST () "/" "Fruit/Apple"
  S: * LIST () "/" "Fruit/Banana"
  S: * LIST () "/" "Tofu"
  S: * LIST () "/" "Vegetable"
  S: * LIST () "/" "Vegetable/Broccoli"
  S: * LIST () "/" "Vegetable/Corn"
  S: A01 OK done