doBlockUpdate example

  public function testConfigUpdateImport() {
    $this->installConfig(['action', 'block', 'filter', 'image']);
    $this->container->get('theme_installer')->install(['olivero']);
    $config_storage = $this->container->get('config.storage');
    // Ensure the 'system.site' config.     $config_storage->write('system.site', ['uuid' => (new Php())->generate()]);
    $this->copyConfig($config_storage, $this->container->get('config.storage.sync'));

    $this->doActionUpdate();
    $this->doBlockUpdate();
    $this->doFilterFormatUpdate();
    $this->doImageStyleUpdate();
    $this->doSearchPageUpdate();
    $this->doThirdPartySettingsUpdate();
  }

  /** * Tests updating an action during import. */
  protected function doActionUpdate() {
    // Create a test action with a known label.