How to implement SimpleTest in Kohana

My boss assigned me to learn how to use Kohana and implement simple test in that. We would like to use it as our framework for future projects.

Being new to both KohanaPHP and SimpleTest, I can't figure out how to do even the simplest test of my helpers. I can't even find a single step-by-step tutorial on how to attach SimpleTest to Kohana.

Anyone here have an idea?

We've created a SimpleTest_controller in Kohana

and it gets the test from a directory tests

define ( 'SIMPLE_TEST', '../tools/simpletest/');
require_once(SIMPLE_TEST . 'unit_tester.php');
require_once(SIMPLE_TEST . 'reporter.php');
require_once( SIMPLE_TEST . 'mock_objects.php');

class SimpleTest_Controller extends Controller {
  function index() {
    $this->runall();
  }

  function runall() {
    $sDir = '../tests/';
    $rDir = opendir( $sDir );

    while ( $sFile = readdir( $rDir ) ) {
      if ( $sFile != '.' && $sFile != '..' ) {
        $this->run( $sFile );
      }
    }
  }

  function run ( $sTests ) {
    $sDir = '../tests/' . $sTests .'/';
    $rDir = opendir( $sDir );
    $test = new GroupTest( $sTests );

    while ( $sFile = readdir( $rDir ) ) {
      if ( $sFile != '.' && $sFile != '..' && !preg_match('/~\d+~/', $sFile) ) {
        include_once($sDir . $sFile);
        $test->addTestCase( substr($sFile, 0, -4 ) );
      }
    }

    $test->run( new HtmlReporter() );
  }
}

you can call domain.com/simpletest to run all or you can call domain.com/simpletest/run/account if you have a accountfolder in your testfolder