TestExtractorWithFinder.php

<?php

declare (strict_types=1);
namespace Drupal\icon_test\Plugin\IconExtractor;

use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Theme\Icon\Attribute\IconExtractor;
use Drupal\Core\Theme\Icon\IconExtractorWithFinder;
use Drupal\Core\Theme\Icon\IconPackExtractorForm;

/**
 * Test plugin implementation of the icon_extractor.
 */
class TestExtractorWithFinder extends IconExtractorWithFinder {
    
    /**
     * {@inheritdoc}
     */
    public function discoverIcons() : array {
        $files = $this->getFilesFromSources();
        $icons = [];
        foreach ($files as $file) {
            if (!isset($file['icon_id'])) {
                continue;
            }
            $icons[] = $this->createIcon($file['icon_id'], $file['source'], $file['group'] ?? NULL);
        }
        return $icons;
    }

}