How can I refer to the output of a test file when writing a script

Beginner here, I am trying to find a way to be able to define the "deposit" variable to result in different outputs based on the previous line of the output. For example, if the previous output of the code is "Sorry, minimum balance must be maintained. Account is frozen." I want any future deposits to have no impact on the balance, and to print "Sorry, account frozen." I have attached below the code I have so far. Thank you very much!

def withdraw(self, amount):
    self.balance -= amount
    if self.balance < self.min_balance:
        print("Sorry, minimum balance must be maintained. Account is frozen") 
        self.balance += amount
    return self.balance

def deposit(self, amount):
    self.balance += amount
    if self.balance - amount < self.min_balance and self.balance - amount != 0:
        print("Sorry, account frozen.")
        self.balance -= amount  
    return self.balance + amount

I expect the output to read: Account: FR646 Paul Depositing 500 Withdrawing 180 Withdrawing 180 Sorry, minimum balance must be maintained. Account is frozen Depositing 500 Sorry, account frozen. Balance: 320

Whereas, what I currently see is: Account: FR646 Paul Depositing 500 Withdrawing 180 Withdrawing 180 Sorry, minimum balance must be maintained. Account is frozen Depositing 500 Balance: 820