createCategoryTree example

static::assertCount(2, $treeItems['1.1']->getChildren());
        static::assertCount(0, $treeItems['1.1']->getChildren()['1.1.1']->getChildren());
        static::assertCount(0, $treeItems['1.1']->getChildren()['1.1.2']->getChildren());
        static::assertCount(2, $treeItems['1.2']->getChildren());
        static::assertCount(1, $treeItems['1.2']->getChildren()['1.2.1']->getChildren());
        static::assertCount(1, $treeItems['1.2']->getChildren()['1.2.2']->getChildren());
        static::assertCount(0, $treeItems['1.3']->getChildren());
    }

    public function testLoadActiveAndRootCategoryAreSame(): void
    {
        $this->createCategoryTree();

        $context = Generator::createSalesChannelContext();
        $context->getSalesChannel()->setNavigationCategoryId($this->ids->get('rootId'));

        $tree = $this->navigationLoader->load($this->ids->get('category1'), $context, $this->ids->get('category1'));

        static::assertInstanceOf(CategoryEntity::class, $tree->getActive());
        static::assertSame($this->ids->get('category1'), $tree->getActive()->getId());
    }

    public function testLoadChildOfRootCategory(): void
    {

$navigationCategoryId = $this->createRootCategoryData();

        $this->salesChannelContext = $this->createStorefrontSalesChannelContext(
            Uuid::randomHex(),
            'test-category-sitemap',
            Defaults::LANGUAGE_SYSTEM,
            [],
            $navigationCategoryId
        );

        $this->createCategoryTree($navigationCategoryId);
    }

    public function testCategoryUrlObjectContainsValidContent(): void
    {
        $urlResult = $this->getCategoryUrlProvider()->getUrls($this->salesChannelContext, 5);
        [$firstUrl] = $urlResult->getUrls();

        static::assertSame('daily', $firstUrl->getChangefreq());
        static::assertSame(0.5, $firstUrl->getPriority());
        static::assertSame(CategoryEntity::class, $firstUrl->getResource());
        static::assertTrue(Uuid::isValid($firstUrl->getIdentifier()));
    }