require_once(APPPATH . '/controllers/test/Toast.php');
require_once(APPPATH . '/class/dollar.php');

class Money_report_test extends Toast
{
 function __construct() {
  parent::__construct(__FILE__);
 }

 function test_Multiplication() {
  $five = new Dollar(5);

  $this->_assert_equals(new Dollar(10), $five->times(2));
  $this->_assert_equals(new Dollar(15), $five->times(3));
 }

 function test_Equality() {
  $obj = new Dollar(5);
  $this->_assert_true($obj->equals(new Dollar(5)));
  $this->_assert_false($obj->equals(new Dollar(6)));
 }
}

class Dollar
{
 private $amount;

 function __construct($amount) {
  $this->amount = $amount;
 }

 function times($multiplier) {
  return new Dollar($this->amount * $multiplier);
 }

 function equals($object) {
  return $this->amount == $object->amount;
 }
}

Toast Unit Tests:

1. [PASSED] money_report_test -> Multiplication
2. [PASSED] money_report_test -> Equality