protected function renderBody()
    {
        $slowTests = $this->slow;

        $length = $this->getReportLength($slowTests);
        for ($i = 1; $i <= $length; ++$i) {
            $label = key($slowTests);
            $time = array_shift($slowTests);

            echo sprintf(" %s. %sms to run %s\n", $i, $time, $label);
        }
    }