class ConfigSchemaTestHooks

class ConfigSchemaTestHooks {
    
    /**
     * Implements hook_config_schema_info_alter().
     */
    public function configSchemaInfoAlter(&$definitions) {
        if (\Drupal::state()->get('config_schema_test_exception_add')) {
            $definitions['config_schema_test.hook_added_definition'] = $definitions['config_schema_test.hook'];
        }
        if (\Drupal::state()->get('config_schema_test_exception_remove')) {
            unset($definitions['config_schema_test.hook']);
        }
        // Since code can not be unloaded only alter the definition if it exists.
        if (isset($definitions['config_schema_test.hook'])) {
            $definitions['config_schema_test.hook']['additional_metadata'] = 'new schema info';
        }
        // @see \Drupal\KernelTests\Core\TypedData\ValidKeysConstraintValidatorTest
        if (\Drupal::state()->get('config_schema_test_block_fully_validatable')) {
            $definitions['block.block.*']['constraints']['FullyValidatable'] = NULL;
        }
        else {
            unset($definitions['block.block.*']['constraints']);
        }
        // @see \Drupal\Tests\node\Kernel\NodeTypeValidationTest::testThirdPartySettingsMenuUi()
        if (\Drupal::state()->get('config_schema_test_menu_ui_third_party_settings_fully_validatable')) {
            $definitions['node.type.*.third_party.menu_ui']['constraints']['FullyValidatable'] = NULL;
        }
        else {
            unset($definitions['node.type.*.third_party.menu_ui']['constraints']);
        }
    }

}