TestInstallStorage example

$definition = $container->getDefinition('config.typed');
    $definition->replaceArgument(1, new Reference('default_config_test.schema_storage'));
  }

  /** * Tests default configuration data type. */
  public function testDefaultConfig() {
    $typed_config = \Drupal::service('config.typed');
    // Create a configuration storage with access to default configuration in     // every module, profile and theme.     $default_config_storage = new TestInstallStorage();
    foreach ($default_config_storage->listAll() as $config_name) {
      if (in_array($config_name, $this->toSkip)) {
        continue;
      }

      $data = $default_config_storage->read($config_name);
      $this->assertConfigSchema($typed_config, $config_name, $data);
    }
  }

}

  protected static $modules = ['views_test_data'];

  /** * Tests default configuration data type. */
  public function testDefaultConfig() {
    // Create a typed config manager with access to configuration schema in     // every module, profile and theme.     $typed_config = new TypedConfigManager(
      \Drupal::service('config.storage'),
      new TestInstallStorage(InstallStorage::CONFIG_SCHEMA_DIRECTORY),
      \Drupal::service('cache.discovery'),
      \Drupal::service('module_handler'),
      \Drupal::service('class_resolver')
    );

    // Create a configuration storage with access to default configuration in     // every module, profile and theme.     $default_config_storage = new TestInstallStorage('test_views');

    foreach ($default_config_storage->listAll() as $config_name) {
      // Skip files provided by the config_schema_test module since that module