def test_get_balance_returns_sum_of_coins_minus_purchases():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
machine.buy_product(products.Candy)
assert machine.get_balance() == 85
def test_buy_product_returns_instance_when_valid():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
result = machine.buy_product(products.Drink)
assert isinstance(result, products.Drink)
def test_inserted_coins_are_appended_to_coin_list():
machine = VendingMachine()
machine.insert_coin(coins.Loonie())
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Quarter())
assert machine.inserted_coins == [
coins.Loonie(), coins.Toonie(),
coins.Quarter()
]
def get_change(self):
"""
method to return change, larger coin value first
not perfect one since when test 85 we expect 3 quarter and 1 dime
this will give 2 quarter 3 dime 1 nickel
"""
coins_list = [
coins.Toonie(),
coins.Loonie(),
coins.Quarter(),
coins.Dime(),
coins.Nickel()
]
list_changes = []
temp = self.get_balance()
temp -= temp % 5
while temp > 0:
for coin in coins_list:
if temp % coin.value == 0:
list_changes.append(coin)
temp -= coin.value
break
return sorted(list_changes,
key=lambda customer: customer.value,
reverse=True)
def test_get_balance_two_loonie_candy_75():
"""
given that two toonies are inserted into the machine and a candy bar
was purchased, the method should return 85.
"""
machine = vending_machine.VendingMachine()
toonie = coins.Toonie()
candy = products.Candy()
machine.insert_coin(toonie)
machine.insert_coin(toonie)
machine.buy_product(candy)
assert machine.get_balance() == 85
def test_get_change_balance_265():
"""
When the balance is 265, a toonie, two quarters, a dime and a
nickel should be returned
"""
machine = vending_machine.VendingMachine()
quarter = coins.Quarter()
toonie = coins.Toonie()
dime = coins.Dime()
nickel = coins.Nickel()
machine.insert_coin(quarter)
machine.insert_coin(toonie)
machine.insert_coin(quarter)
machine.insert_coin(dime)
machine.insert_coin(nickel)
assert machine.get_change() == [toonie, quarter, quarter, dime, nickel]
def test_vending_machine_whole():
"""
Here we do a integrated test to simulate a action of using vending machine
"""
machine1 = vending_machine.VendingMachine()
quarter = coins.Quarter()
toonie = coins.Toonie()
dime = coins.Dime()
nickel = coins.Nickel()
loonie = coins.Loonie()
candy = products.Candy()
chips = products.Chips()
machine1.insert_coin(toonie)
machine1.insert_coin(loonie)
machine1.insert_coin(loonie)
machine1.insert_coin(toonie)
machine1.insert_coin(quarter)
candy = products.Candy()
chips = products.Chips()
machine1.buy_product(candy)
machine1.buy_product(chips)
assert machine1.get_change() == [
quarter, quarter, dime, dime, dime, nickel
]
def test_toonie_str():
coin = coins.Toonie()
assert str(coin) == '$2'
def test_toonie_value():
coin = coins.Toonie()
assert coin.value == 200
def test_toonie_str_label():
"""
test toonie child class of Coin label is $2
"""
coin = coins.Toonie()
assert str(coin) == '$2'
def test_toonie_value_200():
"""
test child class toonie of Coin value is 200
"""
coin = coins.Toonie()
assert coin.value == 200
def test_buy_product_accepts_candy():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Toonie())
machine.buy_product(products.Candy)
def test_buy_product_accepts_drink():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Loonie())
machine.buy_product(products.Drink)
def test_buy_product_accepts_chips_with_sufficient_balance():
machine = VendingMachine()
machine.insert_coin(coins.Toonie())
machine.insert_coin(coins.Quarter())
machine.buy_product(products.Chips)
