class CKEditorStylesComboAdminTest

class CKEditorStylesComboAdminTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'filter',
        'editor',
        'ckeditor',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * A user with the 'administer filters' permission.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * A random generated format machine name.
     *
     * @var string
     */
    protected $format;
    
    /**
     * The default editor settings.
     *
     * @var array
     */
    protected $defaultSettings;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->format = strtolower($this->randomMachineName());
        $filter_format = FilterFormat::create([
            'format' => $this->format,
            'name' => $this->randomString(),
            'filters' => [],
        ]);
        $filter_format->save();
        $ckeditor = $this->container
            ->get('plugin.manager.editor')
            ->createInstance('ckeditor');
        $this->defaultSettings = $ckeditor->getDefaultSettings();
        $this->defaultSettings['toolbar']['rows'][0][] = [
            'name' => 'Styles dropdown',
            'items' => [
                'Styles',
            ],
        ];
        $editor = Editor::create([
            'format' => $this->format,
            'editor' => 'ckeditor',
            'settings' => $this->defaultSettings,
        ]);
        $editor->save();
        $this->adminUser = $this->drupalCreateUser([
            'administer filters',
        ]);
    }
    
    /**
     * Tests StylesCombo settings for an existing text format.
     */
    public function testExistingFormat() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/content/formats/manage/' . $this->format);
        // Ensure an Editor config entity exists, with the proper settings.
        $expected_settings = $this->defaultSettings;
        $editor = Editor::load($this->format);
        $this->assertEquals($expected_settings, $editor->getSettings(), 'The Editor config entity has the correct settings.');
        // Case 1: Configure the Styles plugin with different labels for each style,
        // and ensure the updated settings are saved.
        $this->drupalGet('admin/config/content/formats/manage/' . $this->format);
        $edit = [
            'editor[settings][plugins][stylescombo][styles]' => "h1.title|Title\np.callout|Callout\ndrupal-entity.has-dashes|Allowing Dashes\n\n",
        ];
        $this->submitForm($edit, 'Save configuration');
        $expected_settings['plugins']['stylescombo']['styles'] = "h1.title|Title\np.callout|Callout\ndrupal-entity.has-dashes|Allowing Dashes\n\n";
        $editor = Editor::load($this->format);
        $this->assertEquals($expected_settings, $editor->getSettings(), 'The Editor config entity has the correct settings.');
        // Case 2: Configure the Styles plugin with same labels for each style, and
        // ensure that an error is displayed and that the updated settings are not
        // saved.
        $this->drupalGet('admin/config/content/formats/manage/' . $this->format);
        $edit = [
            'editor[settings][plugins][stylescombo][styles]' => "h1.title|Title\np.callout|Title\n\n",
        ];
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains('Each style must have a unique label.');
        $editor = Editor::load($this->format);
        $this->assertEquals($expected_settings, $editor->getSettings(), 'The Editor config entity has the correct settings.');
    }

}