contextExists example

$currentContext = $this->createSalesChannelContext($currentContextToken);

        $this->contextPersister->save($currentContextToken, [], $currentContext->getSalesChannel()->getId(), $this->customerId);

        $cart = new Cart($currentContextToken);

        $cart->add(new LineItem(Uuid::randomHex(), LineItem::CUSTOM_LINE_ITEM_TYPE));
        $this->getContainer()->get(CartPersister::class)->save($cart, $currentContext);

        static::assertTrue($this->cartExists($currentContextToken));
        static::assertTrue($this->contextExists($currentContextToken));

        $newContext = $this->cartRestorer->restore($this->customerId, $currentContext);

        static::assertTrue($this->cartExists($newContext->getToken()));
        static::assertTrue($this->contextExists($newContext->getToken()));

        static::assertFalse($this->cartExists($currentContextToken));
        static::assertFalse($this->contextExists($currentContextToken));
    }

    public function testCartIsRecalculated(): void
    {

    public function testReplaceWithoutExistingContext(): void
    {
        $token = Random::getAlphanumericString(32);

        $context = $this->createMock(SalesChannelContext::class);
        $salesChannel = (new SalesChannelEntity())->assign(['id' => TestDefaults::SALES_CHANNEL]);
        $context->method('getSalesChannel')->willReturn($salesChannel);
        $newToken = $this->contextPersister->replace($token, $context);

        static::assertTrue($this->contextExists($newToken));
        static::assertFalse($this->contextExists($token));
    }

    public function testSaveReplaceWithExistingContext(): void
    {
        $token = Random::getAlphanumericString(32);

        $this->connection->insert('sales_channel_api_context', [
            'token' => $token,
            'payload' => json_encode([
                'first' => 'test',