def test_bad_order_side(self):
bad_side = "not a nor b"
err_regex = '\n'.join([
f'^Tried to initialize Order instance with illegal order side arg: "{bad_side}"\.',
'Only "b" or "a" allowed\.$'
])
with self.assertRaisesRegex(ValueError, err_regex):
Order(bad_side, 100, 5)
def test_promo_vip(self):
item = ItemToBuy('item', 1, 10)
self.buyer = Buyer('Thiago', 110, False)
order = Order(self.buyer, [item])
self.assertEqual(order.due(), 5)
def test_promo_itens(self):
bananas = ItemToBuy('Banana', 2, 1)
order = Order(self.buyer, [bananas] * 6)
self.assertEqual(order.total(), 12)
self.assertEqual(order.due(), 12 - (12 * 0.3))
def test_promo_values(self):
bananas = ItemToBuy('Banana', 5, 6)
order = Order(self.buyer, [bananas])
self.assertEqual(order.total(), 30)
self.assertEqual(order.due(), 30 * 0.65)
def test_due(self):
order = Order(self.buyer, [self.bananas, self.grapes])
self.assertEqual(order.due(), order.total() * 0.65)
def test_total(self):
order = Order(self.buyer, [self.bananas, self.grapes])
self.assertEqual(order.total(), 34.5)
def test_create(self):
order = Order(self.buyer, [self.bananas, self.grapes])
self.assertIsInstance(order, Order)
def create_ask(price, size):
return Order(Order.ASK, price, size)
def create_bid(price, size):
return Order(Order.BID, price, size)
def test_order_size_setter(self):
order = Order("a", 100, 5)
order.size = -5
self.assertIsNone(order.size)
self.assertTrue(order.is_exhausted())