ChoiceFormField example

namespace Symfony\Component\DomCrawler\Tests\Field;

use Symfony\Component\DomCrawler\Field\ChoiceFormField;

class ChoiceFormFieldTest extends FormFieldTestCase
{
    public function testInitialize()
    {
        $node = $this->createNode('textarea', '');
        try {
            new ChoiceFormField($node);
            $this->fail('->initialize() throws a \LogicException if the node is not an input or a select');
        } catch (\LogicException $e) {
            $this->assertTrue(true, '->initialize() throws a \LogicException if the node is not an input or a select');
        }

        $node = $this->createNode('input', '', ['type' => 'text']);
        try {
            new ChoiceFormField($node);
            $this->fail('->initialize() throws a \LogicException if the node is an input with a type different from checkbox or radio');
        } catch (\LogicException $e) {
            $this->assertTrue(true, '->initialize() throws a \LogicException if the node is an input with a type different from checkbox or radio');
        }

    }

    private function addField(\DOMElement $node): void
    {
        if (!$node->hasAttribute('name') || !$node->getAttribute('name')) {
            return;
        }

        $nodeName = $node->nodeName;
        if ('select' == $nodeName || 'input' == $nodeName && 'checkbox' == strtolower($node->getAttribute('type'))) {
            $this->set(new Field\ChoiceFormField($node));
        } elseif ('input' == $nodeName && 'radio' == strtolower($node->getAttribute('type'))) {
            // there may be other fields with the same name that are no choice             // fields already registered (see https://github.com/symfony/symfony/issues/11689)             if ($this->has($node->getAttribute('name')) && $this->get($node->getAttribute('name')) instanceof ChoiceFormField) {
                $this->get($node->getAttribute('name'))->addChoice($node);
            } else {
                $this->set(new Field\ChoiceFormField($node));
            }
        } elseif ('input' == $nodeName && 'file' == strtolower($node->getAttribute('type'))) {
            $this->set(new Field\FileFormField($node));
        } elseif ('input' == $nodeName && !\in_array(strtolower($node->getAttribute('type')), ['submit', 'button', 'image'])) {