class FieldDiscoveryTestClass

class FieldDiscoveryTestClass extends FieldDiscovery {
    
    /**
     * An array of test data.
     *
     * @var array
     */
    protected $testData;
    
    /**
     * Constructs a FieldDiscoveryTestClass object.
     *
     * @param \Drupal\migrate_drupal\Plugin\MigrateFieldPluginManagerInterface $field_plugin_manager
     *   The field plugin manager.
     * @param \Drupal\migrate\Plugin\MigrationPluginManagerInterface $migration_plugin_manager
     *   The migration plugin manager.
     * @param \Psr\Log\LoggerInterface $logger
     *   The logger.
     * @param array $test_data
     *   An array of test data, keyed by method name, for overridden methods to
     *   return for the purposes of testing other methods.
     */
    public function __construct(MigrateFieldPluginManagerInterface $field_plugin_manager, MigrationPluginManagerInterface $migration_plugin_manager, LoggerInterface $logger, array $test_data = []) {
        parent::__construct($field_plugin_manager, $migration_plugin_manager, $logger);
        $this->testData = $test_data;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getAllFields($core) {
        if (!empty($this->testData['getAllFields'][$core])) {
            return $this->testData['getAllFields'][$core];
        }
        return parent::getAllFields($core);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getBundleFields($core, $entity_type_id, $bundle) {
        return parent::getBundleFields($core, $entity_type_id, $bundle);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getEntityFields($core, $entity_type_id) {
        return parent::getEntityFields($core, $entity_type_id);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFieldInstanceStubMigrationDefinition($core) {
        return parent::getFieldInstanceStubMigrationDefinition($core);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCoreVersion(MigrationInterface $migration) {
        return parent::getCoreVersion($migration);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFieldPlugin($field_type, MigrationInterface $migration) {
        return parent::getFieldPlugin($field_type, $migration);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getSourcePlugin($core) {
        return parent::getSourcePlugin($core);
    }

}