LanguageSelectWidgetTest.php

<?php

namespace Drupal\Tests\language\Kernel;

use Drupal\entity_test\Entity\EntityTest;
use Drupal\KernelTests\KernelTestBase;

/**
 * Tests the language select widget.
 *
 * @group language
 */
class LanguageSelectWidgetTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test',
        'language',
        'user',
        'system',
    ];
    
    /**
     * The entity form display.
     *
     * @var \Drupal\Core\Entity\Entity\EntityFormDisplay
     */
    protected $entityFormDisplay;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('entity_test');
        $this->installEntitySchema('user');
        $storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('entity_form_display');
        $this->entityFormDisplay = $storage->create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'default',
            'status' => TRUE,
        ]);
    }
    
    /**
     * Tests the widget with the locked languages.
     */
    public function testWithIncludedLockedLanguage() {
        $this->entityFormDisplay
            ->setComponent('langcode', [
            'type' => 'language_select',
        ])
            ->save();
        $entity = EntityTest::create([
            'name' => $this->randomString(),
        ]);
        $form = $this->container
            ->get('entity.form_builder')
            ->getForm($entity);
        $options = array_keys($form['langcode']['widget'][0]['value']['#options']);
        $this->assertSame([
            'en',
            'und',
            'zxx',
        ], $options);
    }
    
    /**
     * Tests the widget without the locked languages.
     */
    public function testWithoutIncludedLockedLanguage() {
        $this->entityFormDisplay
            ->setComponent('langcode', [
            'type' => 'language_select',
            'settings' => [
                'include_locked' => FALSE,
            ],
        ])
            ->save();
        $entity = EntityTest::create([
            'name' => $this->randomString(),
        ]);
        $form = $this->container
            ->get('entity.form_builder')
            ->getForm($entity);
        $options = array_keys($form['langcode']['widget'][0]['value']['#options']);
        $this->assertSame([
            'en',
        ], $options);
    }

}