public void CreateControlBookControlAddedAsListenerToCardReaderAndScanner() { var ctrl = new BorrowController(_display, _reader, _scanner, _printer, _bookDao, _loanDao, _memberDao); _reader.Received().Listener = ctrl; _scanner.Received().Listener = ctrl; Assert.Equal(ctrl, _reader.Listener); Assert.Equal(ctrl, _scanner.Listener); }