PhpSpec\Formatter\Html\ReportFailedItem::formatBacktrace PHP Method

    private function formatBacktrace()
    {
        $backtrace = '';
        foreach ($this->event->getBacktrace() as $step) {
            if (isset($step['line']) && isset($step['file'])) {
                $backtrace .= "#{$step['line']} {$step['file']}";
                $backtrace .= "<br />";
                $backtrace .= PHP_EOL;
            }
        }
        return rtrim($backtrace, "<br />" . PHP_EOL);
    }