CommentLanguageTest.php

<?php

namespace Drupal\Tests\comment\Functional;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\comment\Entity\Comment;
use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
use Drupal\comment\Tests\CommentTestTrait;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests for comment language.
 *
 * @group comment
 */
class CommentLanguageTest extends BrowserTestBase {
    use CommentTestTrait;
    
    /**
     * Modules to install.
     *
     * We also use the language_test module here to be able to turn on content
     * language negotiation. Drupal core does not provide a way in itself to do
     * that.
     *
     * @var array
     */
    public static $modules = [
        'node',
        'language',
        'language_test',
        'comment_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    protected function setUp() {
        parent::setUp();
        $this->drupalCreateContentType([
            'type' => 'article',
            'name' => 'Article',
        ]);
        // Create and log in user.
        $admin_user = $this->drupalCreateUser([
            'administer site configuration',
            'administer languages',
            'access administration pages',
            'administer content types',
            'administer comments',
            'create article content',
            'access comments',
            'post comments',
            'skip comment approval',
        ]);
        $this->drupalLogin($admin_user);
        // Add language.
        $edit = [
            'predefined_langcode' => 'fr',
        ];
        $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
        // Set "Article" content type to use multilingual support.
        $edit = [
            'language_configuration[language_alterable]' => TRUE,
        ];
        $this->drupalPostForm('admin/structure/types/manage/article', $edit, t('Save content type'));
        // Enable content language negotiation UI.
        \Drupal::state()->set('language_test.content_language_type', TRUE);
        // Set interface language detection to user and content language detection
        // to URL. Disable inheritance from interface language to ensure content
        // language will fall back to the default language if no URL language can be
        // detected.
        $edit = [
            'language_interface[enabled][language-user]' => TRUE,
            'language_content[enabled][language-url]' => TRUE,
            'language_content[enabled][language-interface]' => FALSE,
        ];
        $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
        // Change user language preference, this way interface language is always
        // French no matter what path prefix the URLs have.
        $edit = [
            'preferred_langcode' => 'fr',
        ];
        $this->drupalPostForm("user/" . $admin_user->id() . "/edit", $edit, t('Save'));
        // Create comment field on article.
        $this->addDefaultCommentField('node', 'article');
        // Make comment body translatable.
        $field_storage = FieldStorageConfig::loadByName('comment', 'comment_body');
        $field_storage->setTranslatable(TRUE);
        $field_storage->save();
        $this->assertTrue($field_storage->isTranslatable(), 'Comment body is translatable.');
    }
    
    /**
     * Test that comment language is properly set.
     */
    public function testCommentLanguage() {
        // Create two nodes, one for english and one for french, and comment each
        // node using both english and french as content language by changing URL
        // language prefixes. Meanwhile interface language is always French, which
        // is the user language preference. This way we can ensure that node
        // language and interface language do not influence comment language, as
        // only content language has to.
        foreach ($this->container
            ->get('language_manager')
            ->getLanguages() as $node_langcode => $node_language) {
            // Create "Article" content.
            $title = $this->randomMachineName();
            $edit = [
                'title[0][value]' => $title,
                'body[0][value]' => $this->randomMachineName(),
                'langcode[0][value]' => $node_langcode,
                'comment[0][status]' => CommentItemInterface::OPEN,
            ];
            $this->drupalPostForm("node/add/article", $edit, t('Save'));
            $node = $this->drupalGetNodeByTitle($title);
            $prefixes = $this->config('language.negotiation')
                ->get('url.prefixes');
            foreach ($this->container
                ->get('language_manager')
                ->getLanguages() as $langcode => $language) {
                // Post a comment with content language $langcode.
                $prefix = empty($prefixes[$langcode]) ? '' : $prefixes[$langcode] . '/';
                $comment_values[$node_langcode][$langcode] = $this->randomMachineName();
                $edit = [
                    'subject[0][value]' => $this->randomMachineName(),
                    'comment_body[0][value]' => $comment_values[$node_langcode][$langcode],
                ];
                $this->drupalPostForm($prefix . 'node/' . $node->id(), $edit, t('Preview'));
                $this->drupalPostForm(NULL, $edit, t('Save'));
                // Check that comment language matches the current content language.
                $cids = \Drupal::entityQuery('comment')->condition('entity_id', $node->id())
                    ->condition('entity_type', 'node')
                    ->condition('field_name', 'comment')
                    ->sort('cid', 'DESC')
                    ->range(0, 1)
                    ->execute();
                $comment = Comment::load(reset($cids));
                $args = [
                    '%node_language' => $node_langcode,
                    '%comment_language' => $comment->langcode->value,
                    '%langcode' => $langcode,
                ];
                $this->assertEqual($comment->langcode->value, $langcode, new FormattableMarkup('The comment posted with content language %langcode and belonging to the node with language %node_language has language %comment_language', $args));
                $this->assertEqual($comment->comment_body->value, $comment_values[$node_langcode][$langcode], 'Comment body correctly stored.');
            }
        }
        // Check that comment bodies appear in the administration UI.
        $this->drupalGet('admin/content/comment');
        foreach ($comment_values as $node_values) {
            foreach ($node_values as $value) {
                $this->assertRaw($value);
            }
        }
    }

}