/bank-tech-test

Primary LanguageRuby

Bank tech test

Requirements

  • You should be able to interact with 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.)
  • Deposits, withdrawal.
  • Account statement (date, amount, balance) printing.
  • Data can be kept in memory (it doesn't need to be stored to a database or anything).

Acceptance criteria

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

My Comments

When writing this tech test I have focused on quality and paying close attention to principles like the single responsibility principle. In doing so I have not had enough time to implement the withdraw method, as paying close attention to the edge cases this would take a long time to craft with best practices. However I hope the detail and principles included in the deposit method would go some way to show my ability as the withdraw method is along the same vein as the deposit method.

Using the project

Install

  1. Fork this repo, and clone to your local machine
  2. Run the command gem install bundle (if you don't have bundle already)
  3. When the installation completes, run bundle
  4. Run irb
  5. Run require './lib/bank.rb'
  6. Run bank = Bank.new
    The bank application is now ready to use and you have two commands: deposit & print_statement
  7. Deposit: You have to pass two parameters into deposit, the amount to be deposited and the date as a string in the following format MM/DD/YYYY. e.g. bank.deposit(1000, '10/10/2012')
  8. Print: to print the statement run bank.print_statement

Testing

  1. Fork this repo, and clone to your local machine
  2. Run the command gem install bundle (if you don't have bundle already)
  3. When the installation completes, run bundle
  4. Run bundle exec rspec
    additionally if you wish to check to formatting please run rubocop

Map of project

These tables are formatted as follows:

class
methods required classes

Map:

Bank
deposit balance
withdraw transaction
print_statement statement
Transaction
deposit transaction_amount
transaction_date
TransactionDate
new_date date
TransactionAmount
new_amount
Balance
update_balance
return_balance
Statement
new statement_history
print_statement
Statement_History
new
print_statement