class CommentLinksTest

class CommentLinksTest extends CommentTestBase {
    
    /**
     * Comment being tested.
     *
     * @var \Drupal\comment\CommentInterface
     */
    protected $comment;
    
    /**
     * Seen comments, array of comment IDs.
     *
     * @var array
     */
    protected $seen = [];
    
    /**
     * Use the main node listing to test rendering on teasers.
     *
     * @var array
     *
     * @todo Remove this dependency.
     */
    protected static $modules = [
        'views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests that comment links are output and can be hidden.
     */
    public function testCommentLinks() {
        // Bartik theme alters comment links, so use a different theme.
        \Drupal::service('theme_installer')->install([
            'stark',
        ]);
        $this->config('system.theme')
            ->set('default', 'stark')
            ->save();
        // Remove additional user permissions from $this->webUser added by setUp(),
        // since this test is limited to anonymous and authenticated roles only.
        $roles = $this->webUser
            ->getRoles();
        \Drupal::entityTypeManager()->getStorage('user_role')
            ->load(reset($roles))
            ->delete();
        // Create a comment via CRUD API functionality, since
        // $this->postComment() relies on actual user permissions.
        $comment = Comment::create([
            'cid' => NULL,
            'entity_id' => $this->node
                ->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'pid' => 0,
            'uid' => 0,
            'status' => CommentInterface::PUBLISHED,
            'subject' => $this->randomMachineName(),
            'hostname' => '127.0.0.1',
            'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
            'comment_body' => [
                [
                    'value' => $this->randomMachineName(),
                ],
            ],
        ]);
        $comment->save();
        $this->comment = $comment;
        // Tests that reply link is not visible when threading is disabled.
        $this->drupalLogin($this->webUser);
        $this->setCommentSettings('default_mode', CommentManagerInterface::COMMENT_MODE_FLAT, 'Comment paging changed.');
        $this->drupalGet('node/' . $this->node
            ->id());
        $this->assertSession()
            ->linkNotExists('Reply');
        // Tests that reply link is visible when threading is enabled.
        $this->setCommentSettings('default_mode', CommentManagerInterface::COMMENT_MODE_THREADED, 'Comment paging changed.');
        $this->drupalGet('node/' . $this->node
            ->id());
        $this->assertSession()
            ->linkExists('Reply');
        // Change comment settings.
        $this->setCommentSettings('form_location', CommentItemInterface::FORM_BELOW, 'Set comment form location');
        $this->setCommentAnonymous(TRUE);
        $this->node->comment = CommentItemInterface::OPEN;
        $this->node
            ->save();
        // Change user permissions.
        $perms = [
            'access comments' => 1,
            'post comments' => 1,
            'skip comment approval' => 1,
            'edit own comments' => 1,
        ];
        user_role_change_permissions(RoleInterface::ANONYMOUS_ID, $perms);
        $nid = $this->node
            ->id();
        // Assert basic link is output, actual functionality is unit-tested in
        // \Drupal\comment\Tests\CommentLinkBuilderTest.
        foreach ([
            'node',
            "node/{$nid}",
        ] as $path) {
            $this->drupalGet($path);
            // In teaser view, a link containing the comment count is always
            // expected.
            if ($path == 'node') {
                $this->assertSession()
                    ->linkExists('1 comment');
            }
            $this->assertSession()
                ->linkExists('Add new comment');
        }
        $display_repository = $this->container
            ->get('entity_display.repository');
        // Change weight to make links go before comment body.
        $display_repository->getViewDisplay('comment', 'comment')
            ->setComponent('links', [
            'weight' => -100,
        ])
            ->save();
        $this->drupalGet($this->node
            ->toUrl());
        $element = $this->cssSelect('article.js-comment > div');
        // Get last child element.
        $element = end($element);
        $this->assertSame('div', $element->getTagName(), 'Last element is comment body.');
        // Change weight to make links go after comment body.
        $display_repository->getViewDisplay('comment', 'comment')
            ->setComponent('links', [
            'weight' => 100,
        ])
            ->save();
        $this->drupalGet($this->node
            ->toUrl());
        $element = $this->cssSelect('article.js-comment > div');
        // Get last child element.
        $element = end($element);
        $this->assertNotEmpty($element->find('css', 'ul.links'), 'Last element is comment links.');
        // Make sure we can hide node links.
        $display_repository->getViewDisplay('node', $this->node
            ->bundle())
            ->removeComponent('links')
            ->save();
        $this->drupalGet($this->node
            ->toUrl());
        $this->assertSession()
            ->linkNotExists('1 comment');
        $this->assertSession()
            ->linkNotExists('Add new comment');
        // Visit the full node, make sure there are links for the comment.
        $this->drupalGet('node/' . $this->node
            ->id());
        $this->assertSession()
            ->pageTextContains($comment->getSubject());
        $this->assertSession()
            ->linkExists('Reply');
        // Make sure we can hide comment links.
        $display_repository->getViewDisplay('comment', 'comment')
            ->removeComponent('links')
            ->save();
        $this->drupalGet('node/' . $this->node
            ->id());
        $this->assertSession()
            ->pageTextContains($comment->getSubject());
        $this->assertSession()
            ->linkNotExists('Reply');
    }

}