class Till(object):
def __init__(self, menu, order_klass=Order, receipt_klass=Receipt):
self._menu = menu
self._order_klass = order_klass
self._current_order = self._order_klass()
self._receipt_klass = receipt_klass
def_delegator('_current_order', 'view_order')
def ring_up(self, item, quantity):
self._menu.verify_in_menu(item)
self._current_order.ring_up(item, quantity)
def receipt_as_json(self):
receipt = self._receipt_klass(self._current_order.view_order(),
self._menu.view_menu())
return receipt.receipt_as_json()
def test_called_in_non_class_scope(self):
with self.assertRaises(NotCalledInClassScope):
def_delegator("what", "ever")
class Foo(object):
def_delegator("bar.baz", "qoox")
class Foo(object):
def_delegator("bar", "baz")
class Foo(object):
def_delegator("s", "__len__")
def __init__(self):
self.s = set()
def test_called_in_non_class_scope(self):
with self.assertRaises(NotCalledInClassScope):
def_delegator("what", "ever")
class Foo(object):
def_delegator("dct", "keys")
dct = {'key': 42}