class OffCanvasDialogTest

class OffCanvasDialogTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'ajax_test',
    ];
    
    /**
     * Tests sending AJAX requests to open and manipulate off-canvas dialog.
     *
     * @dataProvider dialogPosition
     */
    public function testDialog($position) {
        // Ensure the elements render without notices or exceptions.
        $this->drupalGet('ajax-test/dialog');
        // Set up variables for this test.
        $dialog_renderable = AjaxTestController::dialogContents();
        $dialog_contents = \Drupal::service('renderer')->renderRoot($dialog_renderable);
        $off_canvas_expected_response = [
            'command' => 'openDialog',
            'selector' => '#drupal-off-canvas',
            'settings' => NULL,
            'data' => $dialog_contents,
            'dialogOptions' => [
                'title' => 'AJAX Dialog & contents',
                'modal' => FALSE,
                'autoResize' => FALSE,
                'resizable' => 'w',
                'draggable' => FALSE,
                'drupalAutoButtons' => FALSE,
                'drupalOffCanvasPosition' => $position ?: 'side',
                'buttons' => [],
                'dialogClass' => 'ui-dialog-off-canvas ui-dialog-position-' . ($position ?: 'side'),
                'width' => 300,
            ],
            'effect' => 'fade',
            'speed' => 1000,
        ];
        // Emulate going to the JS version of the page and check the JSON response.
        $wrapper_format = $position && $position !== 'side' ? 'drupal_dialog.off_canvas_' . $position : 'drupal_dialog.off_canvas';
        $ajax_result = $this->drupalGet('ajax-test/dialog-contents', [
            'query' => [
                MainContentViewSubscriber::WRAPPER_FORMAT => $wrapper_format,
            ],
        ]);
        $ajax_result = Json::decode($ajax_result);
        $this->assertEquals($off_canvas_expected_response, $ajax_result[4], 'off-canvas dialog JSON response matches.');
    }
    
    /**
     * The data provider for potential dialog positions.
     *
     * @return array
     */
    public static function dialogPosition() {
        return [
            [
                NULL,
            ],
            [
                'side',
            ],
            [
                'top',
            ],
        ];
    }

}