ComposerIntegrationTrait.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Composer;

use Symfony\Component\Finder\Finder;

/**
 * Some utility functions for testing the Composer integration.
 */
trait ComposerIntegrationTrait {
    
    /**
     * Get a Finder object to traverse all of the composer.json files in core.
     *
     * @param string $drupal_root
     *   Absolute path to the root of the Drupal installation.
     *
     * @return \Symfony\Component\Finder\Finder
     *   A Finder object able to iterate all the composer.json files in core.
     */
    public static function getComposerJsonFinder($drupal_root) {
        $composer_json_finder = new Finder();
        $composer_json_finder->name('composer.json')
            ->in([
            // Only find composer.json files within composer/ and core/ directories
            // so we don't inadvertently test contrib in local dev environments.
$drupal_root . '/composer',
            $drupal_root . '/core',
        ])
            ->ignoreUnreadableDirs()
            ->notPath('#^vendor#')
            ->notPath('#/fixture#');
        return $composer_json_finder;
    }

}