class SourceEditingTestBase

abstract class SourceEditingTestBase extends CKEditor5TestBase {
    use CKEditor5TestTrait;
    
    /**
     * The user to use during testing.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * A host entity with a body field whose text to edit with CKEditor 5.
     *
     * @var \Drupal\node\NodeInterface
     */
    protected $host;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'ckeditor5',
        'node',
        'text',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        FilterFormat::create([
            'format' => 'test_format',
            'name' => 'Test format',
            'filters' => [
                'filter_html' => [
                    'status' => TRUE,
                    'settings' => [
                        'allowed_html' => '<div class> <p> <br> <a href> <ol> <ul> <li>',
                    ],
                ],
                'filter_align' => [
                    'status' => TRUE,
                ],
                'filter_caption' => [
                    'status' => TRUE,
                ],
            ],
        ])->save();
        Editor::create([
            'editor' => 'ckeditor5',
            'format' => 'test_format',
            'settings' => [
                'toolbar' => [
                    'items' => [
                        'sourceEditing',
                        'link',
                        'bulletedList',
                        'numberedList',
                    ],
                ],
                'plugins' => [
                    'ckeditor5_sourceEditing' => [
                        'allowed_tags' => [
                            '<div class>',
                        ],
                    ],
                    'ckeditor5_list' => [
                        'properties' => [
                            'reversed' => FALSE,
                            'startIndex' => FALSE,
                        ],
                        'multiBlock' => TRUE,
                    ],
                ],
            ],
            'image_upload' => [
                'status' => FALSE,
            ],
        ])->save();
        $this->assertSame([], array_map(function (ConstraintViolationInterface $v) {
            return (string) $v->getMessage();
        }, iterator_to_array(CKEditor5::validatePair(Editor::load('test_format'), FilterFormat::load('test_format')))));
        $this->adminUser = $this->drupalCreateUser([
            'use text format test_format',
            'bypass node access',
        ]);
        // Create a sample host entity to test CKEditor 5.
        $this->host = $this->createNode([
            'type' => 'page',
            'title' => 'Animals with strange names',
            'body' => [
                'value' => '',
                'format' => 'test_format',
            ],
        ]);
        $this->host
            ->save();
        $this->drupalLogin($this->adminUser);
    }

}