class CommentTitleTest

class CommentTitleTest extends CommentTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests markup for comments with empty titles.
     */
    public function testCommentEmptyTitles() : void {
        // Create a node.
        $this->drupalLogin($this->webUser);
        $this->node = $this->drupalCreateNode([
            'type' => 'article',
            'promote' => 1,
            'uid' => $this->webUser
                ->id(),
        ]);
        // Post comment #1 and verify that h3 is rendered.
        $subject_text = "Test subject";
        $comment_text = "Test comment";
        $this->postComment($this->node, $comment_text, $subject_text, TRUE);
        // Tests that markup is generated for the comment title.
        $regex_h3 = '|<h3[^>]*>.*?</h3>|';
        $this->assertSession()
            ->responseMatches($regex_h3);
        // Installs module that sets comment title to an empty string.
        \Drupal::service('module_installer')->install([
            'comment_empty_title_test',
        ]);
        // Set comments to have a subject with preview disabled.
        $this->setCommentPreview(DRUPAL_DISABLED);
        $this->setCommentForm(TRUE);
        $this->setCommentSubject(TRUE);
        // Create a new node.
        $this->node = $this->drupalCreateNode([
            'type' => 'article',
            'promote' => 1,
            'uid' => $this->webUser
                ->id(),
        ]);
        // Post another comment and verify that h3 is not rendered.
        $subject_text = $this->randomMachineName();
        $comment_text = $this->randomMachineName();
        $comment = $this->postComment($this->node, $comment_text, $subject_text, TRUE);
        // The entity fields for name and mail have no meaning if the user is not
        // Anonymous.
        $this->assertNull($comment->name->value);
        $this->assertNull($comment->mail->value);
        // Confirm that the comment was created.
        $regex = '/<article(.*?)id="comment-' . $comment->id() . '"(.*?)';
        $regex .= $comment->comment_body->value . '(.*?)';
        $regex .= '/s';
        // Verify that the comment is created successfully.
        $this->assertSession()
            ->responseMatches($regex);
        // Tests that markup is not generated for the comment title.
        $this->assertSession()
            ->responseNotMatches($regex_h3);
        $this->assertSession()
            ->pageTextNotContains($subject_text);
    }
    
    /**
     * Tests markup for comments with populated titles.
     */
    public function testCommentPopulatedTitles() : void {
        // Set comments to have a subject with preview disabled.
        $this->setCommentPreview(DRUPAL_DISABLED);
        $this->setCommentForm(TRUE);
        $this->setCommentSubject(TRUE);
        // Create a node.
        $this->drupalLogin($this->webUser);
        $this->node = $this->drupalCreateNode([
            'type' => 'article',
            'promote' => 1,
            'uid' => $this->webUser
                ->id(),
        ]);
        // Post comment #1 and verify that title is rendered in h3.
        $subject_text = $this->randomMachineName();
        $comment_text = $this->randomMachineName();
        $comment1 = $this->postComment($this->node, $comment_text, $subject_text, TRUE);
        // The entity fields for name and mail have no meaning if the user is not
        // Anonymous.
        $this->assertNull($comment1->name->value);
        $this->assertNull($comment1->mail->value);
        // Confirm that the comment was created.
        $this->assertTrue($this->commentExists($comment1), 'Comment #1. Comment found.');
        // Tests that markup is created for comment with heading.
        $this->assertSession()
            ->responseMatches('|<h3[^>]*><a[^>]*>' . $subject_text . '</a></h3>|');
        // Tests that the comment's title link is the permalink of the comment.
        $comment_permalink = $this->cssSelect('.permalink');
        $comment_permalink = $comment_permalink[0]->getAttribute('href');
        // Tests that the comment's title link contains the URL fragment.
        $this->assertStringContainsString('#comment-' . $comment1->id(), $comment_permalink, "The comment's title link contains the url fragment.");
        $this->assertEquals($comment1->permalink()
            ->toString(), $comment_permalink, "The comment's title has the correct link.");
    }

}