LanguageTest.php

<?php

namespace Drupal\Tests\ckeditor\Unit\Plugin\CKEditorPlugin;

use Drupal\ckeditor\Plugin\CKEditorPlugin\Language;
use Drupal\Core\Language\LanguageManager;
use Drupal\Tests\UnitTestCase;

/**
 * @coversDefaultClass \Drupal\ckeditor\Plugin\CKEditorPlugin\Language
 *
 * @group ckeditor
 * @group legacy
 */
class LanguageTest extends UnitTestCase {
    
    /**
     * The plugin under test.
     *
     * @var \Drupal\ckeditor\Plugin\CKEditorPlugin\Language
     */
    protected $plugin;
    
    /**
     * {@inheritdoc}
     */
    public function setUp() : void {
        $this->plugin = new Language([], $this->randomMachineName(), []);
    }
    
    /**
     * Provides a list of configs to test.
     */
    public function providerGetConfig() {
        return [
            [
                'un',
                LanguageManager::getUnitedNationsLanguageList(),
            ],
            [
                'all',
                LanguageManager::getStandardLanguageList(),
            ],
        ];
    }
    
    /**
     * @covers ::getConfig
     *
     * @dataProvider providerGetConfig
     */
    public function testGetConfig($language_list, $expected_languages) {
        $editor = $this->getMockBuilder('Drupal\\editor\\Entity\\Editor')
            ->disableOriginalConstructor()
            ->getMock();
        $editor->expects($this->once())
            ->method('getSettings')
            ->willReturn([
            'plugins' => [
                'language' => [
                    'language_list' => $language_list,
                ],
            ],
        ]);
        $config = $this->plugin
            ->getConfig($editor);
        $this->assertIsArray($config);
        $this->assertContains('ar:Arabic:rtl', $config['language_list']);
        $this->assertContains('zh-hans:Chinese, Simplified', $config['language_list']);
        $this->assertContains('en:English', $config['language_list']);
        $this->assertContains('fr:French', $config['language_list']);
        $this->assertContains('ru:Russian', $config['language_list']);
        $this->assertContains('ar:Arabic:rtl', $config['language_list']);
        $this->assertSameSize($expected_languages, $config['language_list']);
    }

}