addNodeList example

    public function add(\DOMNodeList|\DOMNode|array|string|null $node)
    {
        if ($node instanceof \DOMNodeList) {
            $this->addNodeList($node);
        } elseif ($node instanceof \DOMNode) {
            $this->addNode($node);
        } elseif (\is_array($node)) {
            $this->addNodes($node);
        } elseif (\is_string($node)) {
            $this->addContent($node);
        } elseif (null !== $node) {
            throw new \InvalidArgumentException(sprintf('Expecting a DOMNodeList or DOMNode instance, an array, a string, or null, but got "%s".', get_debug_type($node)));
        }
    }

    

public function testAddDocument()
    {
        $crawler = $this->createCrawler();
        $crawler->addDocument($this->createDomDocument());

        $this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addDocument() adds nodes from a \DOMDocument');
    }

    public function testAddNodeList()
    {
        $crawler = $this->createCrawler();
        $crawler->addNodeList($this->createNodeList());

        $this->assertEquals('foo', $crawler->filterXPath('//div')->attr('class'), '->addNodeList() adds nodes from a \DOMNodeList');
    }

    public function testAddNodes()
    {
        $list = [];
        foreach ($this->createNodeList() as $node) {
            $list[] = $node;
        }