def test_withdrawal_converted_to_negative():
"""
Given a positive amount argument for deposit, the amount value is converted
to negative.
"""
account = Account()
amount = 80
account.withdraw(amount)
assert account.get_balance() == -80
def test_withdrawal_appended_to_transactions():
"""The withdraw instance is appended to transactions"""
account = Account()
account.deposit(-300)
account.withdraw(80)
account.withdraw(120)
# all of the withdraw instances or 'transactions' should be in Account(object)
data = ast.literal_eval(repr(account.transactions))
assert account.get_balance() == sum(row[0] for row in data)
def test_negative_deposits_converted_to_positive():
"""
Given a negative amount argument for deposit, the amount value is converted
to positive.
"""
account = Account()
amount = -300
account.deposit(amount)
assert account.get_balance() == 300