### Question:
ItemCartServiceImpl extends ServiceImpl<ItemCartMapper, ItemCart> implements ItemCartService { @Override public List<ItemCartDto> list(@NonNull String nickName) { List<ItemCart> itemCartList = list(new QueryWrapper<ItemCart>() .eq("member_nickname", nickName).eq("item_cart_status", 0)); return convertService.convert(itemCartList); } @Autowired  ItemCartServiceImpl(ConvertService convertService,
			ItemCartMapper itemCartMapper); @Override boolean add(@NonNull ItemCartDto itemCartDto); @Override List<ItemCartDto> list(@NonNull String nickName); @Override boolean updateQuantity(@NonNull String nickName, @NonNull String itemId,
			@NonNull Integer quantity); @Override boolean submitOrder(@NotNull Long itemCartId); @Override boolean submitOrder(@NotNull List<Long> itemCartIds); @Override boolean clear(@NonNull String nickName); @Override boolean delete(@NonNull String nickName, @NonNull String itemId);  }### Answer:
@Test public void list() { }