1. You should be able to interact with the your code via a REPL like IRB or the JavaScript console. (You don't need to implement a command line interface that takes input from STDIN.)

2. Deposits, withdrawal.

3. Account statement (date, amount, balance) printing.

4. Data can be kept in memory (it doesn't need to be stored to a database or anything).

Given a client makes a deposit of 1000 on 10-01-2012 And a deposit of 2000 on 13-01-2012 And a withdrawal of 500 on 14-01-2012 When she prints her bank statement Then she would see:

date       || credit || debit   || balance
14/01/2012 ||        || 500.00  || 2500.00
13/01/2012 || 2000.00||         || 3000.00
10/01/2012 || 1000.00||         || 1000.00

I started by diagramming the bank out in full. I came to conclusion that I would need three classes. Following good TDD practice I wrote tests for all of my methods, with nearly complete test coverage. I used the Statement class for storing my transaction history, with Transactions used for creating each record of a transaction that takes place when deposit or withdraw are called, in Account.

• Clone this repository from GitHub.

• Navigate in the terminal to the bank_tech_test directory.

• Run bundle in the terminal to install all the required gems from the Gemfile

• Open up your REPL of choice (pry, irb etc.) and run require "./lib/account"

• To make a new account object, input account = Account.new

• From there you can use any of the methods, withdraw, deposit or print_statement to use the program.