hasdrubaltn / bank-kata

Bank kata in C# for practising TDD.

Outside-In TDD

Learn and practice the double loop of TDD. Test software modules from the outside, identifying the side effects.

Problem description

Create a simple bank application with the following features:

• Deposit into Account
• Withdraw from an Account
• Print a bank statement to the console

All of the methods must be void and you cannot add anymore methods to the Account class.

Acceptance criteria

Statement should have transactions in the following format:

• DATE | AMOUNT | BALANCE
• date | amount | balance

The scenario for the kata is as follows:

• Given a client makes a deposit of 1000 on 01-04-2014
• And a withdrawal of 100 on 02-04-2014
• And a deposit of 500 on 10-04-2014
• When she prints her bank statement Then she would see

The output should look like the following:

• DATE | AMOUNT | BALANCE
• 10/04/2014 | 500.00 | 1400.00
• 02/04/2014 | -100 | 900.00
• 01/04/2014 | 1000.00 | 1000.00