class AddedStylesheetsTest

class AddedStylesheetsTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'ckeditor5',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * The editor user.
     *
     * @var \Drupal\editor\Entity\Editor
     */
    protected $editor;
    
    /**
     * The admin user.
     *
     * @var \Drupal\user\Entity\User
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $filtered_html_format = FilterFormat::create([
            'format' => 'llama',
            'name' => 'Llama',
            'filters' => [],
            'roles' => [
                RoleInterface::AUTHENTICATED_ID,
            ],
        ]);
        $filtered_html_format->save();
        $this->editor = Editor::create([
            'format' => 'llama',
            'editor' => 'ckeditor5',
            'settings' => [
                'toolbar' => [
                    'items' => [],
                ],
            ],
        ]);
        $this->editor
            ->save();
        $this->assertSame([], array_map(function (ConstraintViolation $v) {
            return (string) $v->getMessage();
        }, iterator_to_array(CKEditor5::validatePair($this->editor, $filtered_html_format))));
        // Create node type.
        $this->drupalCreateContentType([
            'type' => 'article',
            'name' => 'Article',
        ]);
        $this->adminUser = $this->drupalCreateUser([
            'create article content',
            'use text format llama',
            'administer themes',
            'view the administration theme',
            'administer filters',
        ]);
        $this->drupalLogin($this->adminUser);
    }
    
    /**
     * Test the ckeditor5-stylesheets theme config.
     */
    public function testCkeditorStylesheets() {
        $assert_session = $this->assertSession();
        
        /** @var \Drupal\Core\Extension\ThemeInstallerInterface $theme_installer */
        $theme_installer = \Drupal::service('theme_installer');
        $theme_installer->install([
            'test_ckeditor_stylesheets_relative',
            'claro',
        ]);
        $this->config('system.theme')
            ->set('admin', 'claro')
            ->save();
        $this->config('node.settings')
            ->set('use_admin_theme', TRUE)
            ->save();
        $this->drupalGet('node/add/article');
        $assert_session->responseNotContains('test_ckeditor_stylesheets_relative/css/yokotsoko.css');
        // Confirm that the missing ckeditor5-stylesheets configuration can be
        // bypassed.
        $this->drupalGet('admin/config/content/formats/manage/llama');
        $assert_session->pageTextNotContains('ckeditor_stylesheets configured without a corresponding ckeditor5-stylesheets configuration.');
        // Install a theme with ckeditor5-stylesheets configured. Do this manually
        // to confirm `library_info` cache tags are invalidated.
        $this->drupalGet('admin/appearance');
        $this->clickLink('Set Test relative CKEditor stylesheets as default theme');
        // Confirm the stylesheet added via `ckeditor5-stylesheets` is present.
        $this->drupalGet('node/add/article');
        $assert_session->responseContains('test_ckeditor_stylesheets_relative/css/yokotsoko.css');
        // Change the default theme to Stark, and confirm the stylesheet added via
        // `ckeditor5-stylesheets` is no longer present.
        $this->drupalGet('admin/appearance');
        $this->clickLink('Set Stark as default theme');
        $this->drupalGet('node/add/article');
        $assert_session->responseNotContains('test_ckeditor_stylesheets_relative/css/yokotsoko.css');
    }

}