KataBank

Kata proposed by Sandro Mancuso at SoCraTes Canaries 2015.

Goal

Develop the Kata doing BDD Outside-in Mockist style.

##Acceptance test

@Test
public void should_print_statement_containing_all_transactions() {
	account.deposit(1000);
	account.withdraw(100);
	account.deposit(500);

	account.printStatement();

	verify(console).printLine("DATE | AMOUNT | BALANCE");
	verify(console).printLine("10/04/2014 | 500 | 1400");
	verify(console).printLine("02/04/2014 | -100 | 900");
	verify(console).printLine("01/04/2014 | 1000 | 1000");
}

Main class definition

Requirement

You cannot change anything in the public interface.

Code

public class AccountService {
	public void deposit(int amount) {
	}

	public void withdraw(int amount) {
	}

	public void printStatement() {
	}
}

My solution

I have 3 main classes:

- Account: Public interface
- Repository: For persistence
- Printer: To print according to the format

I also have other classes:

- Transaction: Model class to store the amount and the date.
- TransactionFactory: To create the Transaction.
- Date: To be able to fake the date responses from the system.
- Output: Interface with printLine method.
- Console: Implementation of the Output interface printing on the console.

How to use it

1.- Install the dependencies using composer

composer install

2.- Execute the tests

phpunit

3.- View code coverage

phpunit --coverage-text