def test_transfer_negative_debit(self):
account = Account(999, -10000)
account.transfer(-1000)
self.assertEqual(account.funds, -11500)
def test_transfer_zero_debit(self):
account = Account(999, 10000)
account.transfer(-10000)
self.assertEqual(account.funds, 0)
def test_transfer_deposit(self):
account = Account(999, 10000)
account.transfer(1000)
self.assertEqual(account.funds, 11000)
