public function DisplayExtenderTest3::validate in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/views/tests/modules/views_test_data/src/Plugin/views/display_extender/DisplayExtenderTest3.php \Drupal\views_test_data\Plugin\views\display_extender\DisplayExtenderTest3::validate()

Validate that the plugin is correct and can be saved.

Return value

An array of error strings to tell the user what is wrong with this plugin.

Overrides PluginBase::validate

File

core/modules/views/tests/modules/views_test_data/src/Plugin/views/display_extender/DisplayExtenderTest3.php, line 18

Class

DisplayExtenderTest3

Defines the third display extender test plugin.

Namespace

Drupal\views_test_data\Plugin\views\display_extender

Code

public function validate() {
  return [
    'Display extender test error.',
  ];
}