class MapBaseFieldTest

class MapBaseFieldTest extends EntityKernelTestBase {
  
  /**
   * The entity definition update manager.
   *
   * @var \Drupal\Core\Entity\EntityDefinitionUpdateManagerInterface
   */
  protected $entityDefinitionUpdateManager;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'entity_test_update',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->entityDefinitionUpdateManager = $this->container
      ->get('entity.definition_update_manager');
    // Install every entity type's schema that wasn't installed in the parent
    // method.
    foreach (array_diff_key($this->entityTypeManager
      ->getDefinitions(), array_flip([
      'user',
      'entity_test',
    ])) as $entity_type_id => $entity_type) {
      $this->installEntitySchema($entity_type_id);
    }
  }
  
  /**
   * Tests uninstalling map item base field.
   */
  public function testUninstallMapItemBaseField() {
    $definitions['data_map'] = BaseFieldDefinition::create('map')->setLabel(t('Data'))
      ->setRequired(TRUE);
    $this->state
      ->set('entity_test_update.additional_base_field_definitions', $definitions);
    $this->entityDefinitionUpdateManager
      ->installFieldStorageDefinition('data_map', 'entity_test_update', 'entity_test', $definitions['data_map']);
    $entity = EntityTestUpdate::create([
      'data_map' => [
        'key' => 'value',
      ],
    ]);
    $entity->save();
    $this->entityDefinitionUpdateManager
      ->uninstallFieldStorageDefinition($definitions['data_map']);
  }

}