Alex\BehatLauncher\Controller\RunController::restartAction PHP Method

    public function restartAction(Request $request, $id)
    {
        $unitQuery = $request->query->get('unit');
        try {
            $run = $this->getRunStorage()->getRun($id);
        } catch (\InvalidArgumentException $e) {
            throw $this->createNotFoundException(sprintf('Run #%s not found.', $id));
        }
        $failed = $request->query->get('failed');
        foreach ($run->getUnits() as $unit) {
            if ($unitQuery && $unitQuery != $unit->getId()) {
                continue;
            }
            if ($failed && !$unit->isFailed()) {
                continue;
            }
            if ($unit->isFinished()) {
                $unit->reset();
                $this->getRunStorage()->saveRunUnit($unit);
            }
        }
        return $this->redirect($this->generateUrl('run_show', array('id' => $id)));
    }