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Bank Tech Test

How to use

1. Open your terminal and clone the repository:

git clone [email protected]:edthomas93/bank-tech-test.git

2. Install the gemfiles. The gems are rspec to see all passing tests, simplecov to see the test coverage and rubocop to see any formatting errors:

bundle install

3. To see if the tests are passing and the coverage type from the folder 'bank_tech_test':

rspec

4. To run the program start IRB:

irb

5. Require file you wish to use:

require './lib/account.rb'

6. Create an account:

account = Account.new

7. Process several transactions

  • You can credit the account a certain amount by inputting: account.deposit(amount)
  • You can debit the account a certain amount by inputting: account.withdraw(amount)

8. Print the statement to see your history and balance:

account.print_statement

9. When finished, exit IRB:

exit

Approach

As this is a tech test I was hoping to implement all philosophies that I have learnt at Maker's so far. This included creating user stories and then creating Test-Driven, readable, modularised, DRY code to satisfy these desired features.

####User stories:

As a customer,
To increase the balance in my account,
I want to be able to make deposits.

As a customer,
To access the money I have deposited,
I want to be able to make withdrawals.

As a customer,
To be able to monitor my spending,
I want to be able to view my bank statement.

Specification

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