def test_one_of_each(self):
checkout = Checkout()
checkout.scan("A")
checkout.scan("B")
checkout.scan("C")
checkout.scan("D")
self.assertEqual(checkout.receipt_text(),
"A: 50\nB: 30\nC: 20\nD: 15\nTotal: 115")
def test_offers(self):
checkout = Checkout()
checkout.scan("A")
checkout.scan("A")
checkout.scan("B")
checkout.scan("A")
checkout.scan("C")
checkout.scan("D")
checkout.scan("B")
self.assertEqual(checkout.total, 2)
self.assertEqual(
checkout.receipt_text(),
"A: 50\nA: 50\nB: 30\nA: 50 - 20 (3 for 130)\nC: 20\nD: 15\nB: 30 - 15 (2 for 45)\nTotal: 210"
)
def test_single_item(self):
checkout = Checkout()
checkout.scan("A")
print(checkout.receipt_text())
self.assertIn("A: 50\nTotal: 50", checkout.receipt_text())
