LanguageNegotiationTestBase.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\language\Unit\Plugin\LanguageNegotiation;

use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Tests\UnitTestCase;

/**
 * Base class used for testing the various LanguageNegotiation plugins.
 *
 * @group language
 */
abstract class LanguageNegotiationTestBase extends UnitTestCase {
    
    /**
     * Returns the plugin class to use for creating the language negotiation plugin.
     *
     * @return string
     *   The plugin class name.
     */
    protected abstract function getPluginClass() : string;
    
    /**
     * Creates a @LanguageNegotiation plugin using the factory ::create method.
     *
     * @return \Drupal\language\LanguageNegotiationMethodInterface
     */
    protected function createLanguageNegotiationPlugin(array $configuration = [], $plugin_definition = NULL) {
        $class = $this->getPluginClass();
        $this->assertTrue(in_array(ContainerFactoryPluginInterface::class, class_implements($class)));
        return $class::create(\Drupal::getContainer(), $configuration, $class::METHOD_ID, $plugin_definition);
    }

}