On Saturday, December 12, 2015 at 1:05:29 AM UTC-8, Harbey Leke wrote:
> Create a class called BankAccount
>
> .Create a constructor that takes in an integer and assigns this to a
> `balance` property.
>
> .Create a method called `deposit` that takes in cash deposit amount and
> updates the balance accordingly.
>
> .Create a method called `withdraw` that takes in cash withdrawal amount and
> updates the balance accordingly. if amount is greater than balance return
> `"invalid transaction"`
>
> .Create a subclass MinimumBalanceAccount of the BankAccount class
>
> Please i need help on this i am a beginer into python programming.
>
>
> Also below is a test case given for this project
>
>
> import unittest
> class AccountBalanceTestCases(unittest.TestCase):
> def setUp(self):
> self.my_account = BankAccount(90)
>
> def test_balance(self):
> self.assertEqual(self.my_account.balance, 90, msg='Account Balance
> Invalid')
>
> def test_deposit(self):
> self.my_account.deposit(90)
> self.assertEqual(self.my_account.balance, 180, msg='Deposit method
> inaccurate')
>
> def test_withdraw(self):
> self.my_account.withdraw(40)
> self.assertEqual(self.my_account.balance, 50, msg='Withdraw method
> inaccurate')
>
> def test_invalid_operation(self):
> self.assertEqual(self.my_account.withdraw(1000), "invalid transaction",
> msg='Invalid transaction')
>
> def test_sub_class(self):
> self.assertTrue(issubclass(MinimumBalanceAccount, BankAccount), msg='No
> true subclass of BankAccount')
my solution is:
class BankAccount(object):
def __init__(self, initial_balance):
self.balance = initial_balance
def deposit(self, amount):
self.balance +=amount
def withdraw(self, amount):
if self.balance>= amount:
self.balance -= amount
else:
return invalid transaction
a1 = BankAccount (90)
a1.deposit(90)
a1.withdraw(40)
a1.withdraw(1000)
class MinimumBalanceAccount(BankAccount):
def __init__(self):
BankAccount.__init__(self,minimum_balance)
self.minimum_balance = minimum_balance
my_account = BankAccount(90)
my_account.withdraw(40)
print my_account.balance
It keeps alerting me that,"Error running your script".Where might I have gone
wrong?Please help..
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