media_migration-8.x-1.x-dev/tests/modules/media_migration_test_long_field_name/media_migration_test_long_field_name.module

<?php

/**
 * @file
 * Test helper module for providing simplified dealer plugins.
 */

/**
 * Implements hook_media_migration_file_dealer_info_alter().
 */
function media_migration_test_long_field_name_media_migration_file_dealer_info_alter(array &$definitions) {
  foreach ($definitions as $id => $definition) {
    $definitions[$id]['class'] = _media_migration_test_long_field_name_replace_plugin_class($definition['class']);
  }
}

/**
 * Implements hook_media_migration_file_entity_dealer_info_alter().
 */
function media_migration_test_long_field_name_media_migration_file_entity_dealer_info_alter(array &$definitions) {
  foreach ($definitions as $id => $definition) {
    $definitions[$id]['class'] = _media_migration_test_long_field_name_replace_plugin_class($definition['class']);
  }
}

/**
 * Replaces plugin class namespace from Drupal\media_migration.
 *
 * @param string $class
 *   The original plugin class FQCN.
 *
 * @return string
 *   The new plugin class FQCN.
 */
function _media_migration_test_long_field_name_replace_plugin_class(string $class) {
  return preg_replace('/^Drupal\\\media_migration\b/', 'Drupal\media_migration_test_long_field_name', $class);
}