implementation_guidelines.md

Implementation Guidelines

  Note: Start with an 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 | 500.00 | 1400.00");
	verify(console).printLine("02/04/2014 | -100.00 | 900.00");
	verify(console).printLine("01/04/2014 | 1000.00 | 1000.00");
}

Tests should be done through the Account class:

public class Account {

    public void deposit(int amount);

    public void withdraw(int amount);

    public void printStatement();
}