openSection example

$event = $stopwatch->stop('foo');

        $this->assertIsFloat($event->getStartTime());
        $this->assertIsFloat($event->getEndTime());
        $this->assertIsFloat($event->getDuration());
    }

    public function testSection()
    {
        $stopwatch = new Stopwatch();

        $stopwatch->openSection();
        $stopwatch->start('foo', 'cat');
        $stopwatch->stop('foo');
        $stopwatch->start('bar', 'cat');
        $stopwatch->stop('bar');
        $stopwatch->stopSection('1');

        $stopwatch->openSection();
        $stopwatch->start('foobar', 'cat');
        $stopwatch->stop('foobar');
        $stopwatch->stopSection('2');

        

class TraceableEventDispatcher extends BaseTraceableEventDispatcher
{
    protected function beforeDispatch(string $eventName, object $event): void
    {
        switch ($eventName) {
            case KernelEvents::REQUEST:
                $event->getRequest()->attributes->set('_stopwatch_token', substr(hash('sha256', uniqid(mt_rand(), true)), 0, 6));
                $this->stopwatch->openSection();
                break;
            case KernelEvents::VIEW:
            case KernelEvents::RESPONSE:
                // stop only if a controller has been executed                 if ($this->stopwatch->isStarted('controller')) {
                    $this->stopwatch->stop('controller');
                }
                break;
            case KernelEvents::TERMINATE:
                $sectionId = $event->getRequest()->attributes->get('_stopwatch_token');
                if (null === $sectionId) {
                    

class TraceableEventDispatcher extends BaseTraceableEventDispatcher
{
    /** * @return void */
    protected function beforeDispatch(string $eventName, object $event)
    {
        switch ($eventName) {
            case KernelEvents::REQUEST:
                $event->getRequest()->attributes->set('_stopwatch_token', substr(hash('sha256', uniqid(mt_rand(), true)), 0, 6));
                $this->stopwatch->openSection();
                break;
            case KernelEvents::VIEW:
            case KernelEvents::RESPONSE:
                // stop only if a controller has been executed                 if ($this->stopwatch->isStarted('controller')) {
                    $this->stopwatch->stop('controller');
                }
                break;
            case KernelEvents::TERMINATE:
                $sectionId = $event->getRequest()->attributes->get('_stopwatch_token');
                if (null === $sectionId) {