peekAll example

        $return = $this->flashes[$type];

        unset($this->flashes[$type]);

        return $return;
    }

    public function all(): array
    {
        $return = $this->peekAll();
        $this->flashes = [];

        return $return;
    }

    /** * @return void */
    public function set(string $type, string|array $messages)
    {
        $this->flashes[$type] = (array) $messages;
    }

        $return = $this->flashes[$type];

        unset($this->flashes[$type]);

        return $return;
    }

    public function all(): array
    {
        $return = $this->peekAll();
        $this->flashes = [];

        return $return;
    }

    /** * @return void */
    public function set(string $type, string|array $messages)
    {
        $this->flashes[$type] = (array) $messages;
    }

protected function tearDown(): void
    {
        unset($this->bag);
        parent::tearDown();
    }

    public function testInitialize()
    {
        $bag = new FlashBag();
        $bag->initialize($this->array);
        $this->assertEquals($this->array, $bag->peekAll());
        $array = ['should' => ['change']];
        $bag->initialize($array);
        $this->assertEquals($array, $bag->peekAll());
    }

    public function testGetStorageKey()
    {
        $this->assertEquals('_symfony_flashes', $this->bag->getStorageKey());
        $attributeBag = new FlashBag('test');
        $this->assertEquals('test', $attributeBag->getStorageKey());
    }

    

$array = [
            'new' => [
                'notice' => 'Foo',
                'error' => 'Bar',
            ],
        ];

        $this->bag->initialize($array);
        $this->assertEquals([
            'notice' => 'Foo',
            'error' => 'Bar',
            ], $this->bag->peekAll()
        );

        $this->assertEquals([
            'notice' => 'Foo',
            'error' => 'Bar',
            ], $this->bag->peekAll()
        );
    }

    public function testGet()
    {
        

    public function toolbarAction(Request $request, string $token = null): Response
    {
        if (null === $this->profiler) {
            throw new NotFoundHttpException('The profiler must be enabled.');
        }

        if (!$request->attributes->getBoolean('_stateless') && $request->hasSession()
            && ($session = $request->getSession())->isStarted() && $session->getFlashBag() instanceof AutoExpireFlashBag
        ) {
            // keep current flashes for one more request if using AutoExpireFlashBag             $session->getFlashBag()->setAll($session->getFlashBag()->peekAll());
        }

        if ('empty' === $token || null === $token) {
            return new Response('', 200, ['Content-Type' => 'text/html']);
        }

        $this->profiler->disable();

        if (!$profile = $this->profiler->loadProfile($token)) {
            return new Response('', 404, ['Content-Type' => 'text/html']);
        }

        

$sessionMetadata = [];
        $sessionAttributes = [];
        $flashes = [];
        if ($request->hasSession()) {
            $session = $request->getSession();
            if ($session->isStarted()) {
                $sessionMetadata['Created'] = date(\DATE_RFC822, $session->getMetadataBag()->getCreated());
                $sessionMetadata['Last used'] = date(\DATE_RFC822, $session->getMetadataBag()->getLastUsed());
                $sessionMetadata['Lifetime'] = $session->getMetadataBag()->getLifetime();
                $sessionAttributes = $session->all();
                $flashes = $session->getFlashBag()->peekAll();
            }
        }

        $statusCode = $response->getStatusCode();

        $responseCookies = [];
        foreach ($response->headers->getCookies() as $cookie) {
            $responseCookies[$cookie->getName()] = $cookie;
        }

        $dotenvVars = [];
        

$nonces = $this->cspHandler->updateResponseHeaders($request, $response);
        }

        // do not capture redirects or modify XML HTTP Requests         if ($request->isXmlHttpRequest()) {
            return;
        }

        if ($response->headers->has('X-Debug-Token') && $response->isRedirect() && $this->interceptRedirects && 'html' === $request->getRequestFormat()) {
            if ($request->hasSession() && ($session = $request->getSession())->isStarted() && $session->getFlashBag() instanceof AutoExpireFlashBag) {
                // keep current flashes for one more request if using AutoExpireFlashBag                 $session->getFlashBag()->setAll($session->getFlashBag()->peekAll());
            }

            $response->setContent($this->twig->render('@WebProfiler/Profiler/toolbar_redirect.html.twig', ['location' => $response->headers->get('Location'), 'host' => $request->getSchemeAndHttpHost()]));
            $response->setStatusCode(200);
            $response->headers->remove('Location');
        }

        if (self::DISABLED === $this->mode
            || !$response->headers->has('X-Debug-Token')
            || $response->isRedirection()
            || ($response->headers->has('Content-Type') && !str_contains($response->headers->get('Content-Type') ?? '', 'html'))
            

                )
            );

        $session = new Session(new MockArraySessionStorage());
        $this->translatorCallback($session);

        $response = $this->controller->addProductByNumber($request, $context);

        static::assertEquals(new Response(), $response);

        static::assertArrayHasKey('danger', $session->getFlashBag()->peekAll());
    }

    public function testAddPromotion(): void
    {
        $code = Uuid::randomHex();

        $request = new Request([], ['code' => $code]);
        $cart = new Cart(Uuid::randomHex());
        $context = $this->createMock(SalesChannelContext::class);
        $uniqueKey = PromotionItemBuilder::PLACEHOLDER_PREFIX . $code;
        $item = new LineItem($uniqueKey, PromotionProcessor::LINE_ITEM_TYPE);
        

$sessionMetadata = [];
        $sessionAttributes = [];
        $flashes = [];
        if ($request->hasSession()) {
            $session = $request->getSession();
            if ($session->isStarted()) {
                $sessionMetadata['Created'] = date(\DATE_RFC822, $session->getMetadataBag()->getCreated());
                $sessionMetadata['Last used'] = date(\DATE_RFC822, $session->getMetadataBag()->getLastUsed());
                $sessionMetadata['Lifetime'] = $session->getMetadataBag()->getLifetime();
                $sessionAttributes = $session->all();
                $flashes = $session->getFlashBag()->peekAll();
            }
        }

        $statusCode = $response->getStatusCode();

        $responseCookies = [];
        foreach ($response->headers->getCookies() as $cookie) {
            $responseCookies[$cookie->getName()] = $cookie;
        }

        $dotenvVars = [];
        

$groups = [
            'info' => $errors->getNotices(),
            'warning' => $errors->getWarnings(),
            'danger' => $errors->getErrors(),
        ];

        $request = $this->container->get('request_stack')->getMainRequest();
        $exists = [];

        if ($request && $request->hasSession() && $request->getSession() instanceof FlashBagAwareSessionInterface) {
            $exists = $request->getSession()->getFlashBag()->peekAll();
        }

        $flat = [];
        foreach ($exists as $messages) {
            $flat = array_merge($flat, $messages);
        }

        /** @var array<string, Error[]> $groups */
        foreach ($groups as $type => $errors) {
            foreach ($errors as $error) {
                $parameters = [];

                

/** * {@inheritdoc} */
  public function addWarning($message, $repeat = FALSE) {
    return $this->addMessage($message, static::TYPE_WARNING, $repeat);
  }

  /** * {@inheritdoc} */
  public function all() {
    return $this->flashBag->peekAll();
  }

  /** * {@inheritdoc} */
  public function deleteAll() {
    return $this->flashBag->clear();
  }

  /** * {@inheritdoc} */

$this->storage->start();
        $this->assertEquals($id, $this->storage->getId());
    }

    public function testRegenerate()
    {
        $this->storage->start();
        $id = $this->storage->getId();
        $this->storage->regenerate();
        $this->assertNotEquals($id, $this->storage->getId());
        $this->assertEquals(['foo' => 'bar'], $this->storage->getBag('attributes')->all());
        $this->assertEquals(['notice' => 'hello'], $this->storage->getBag('flashes')->peekAll());

        $id = $this->storage->getId();
        $this->storage->regenerate(true);
        $this->assertNotEquals($id, $this->storage->getId());
        $this->assertEquals(['foo' => 'bar'], $this->storage->getBag('attributes')->all());
        $this->assertEquals(['notice' => 'hello'], $this->storage->getBag('flashes')->peekAll());
    }

    public function testGetId()
    {
        $this->assertEquals('', $this->storage->getId());