class TestMigration

class TestMigration extends Migration {
    
    /**
     * Constructs an instance of TestMigration object.
     */
    public function __construct() {
        $this->migration_dependencies = ($this->migration_dependencies ?: []) + [
            'required' => [],
            'optional' => [],
        ];
    }
    
    /**
     * Sets the migration ID (machine name).
     *
     * @param string $plugin_id
     *   The plugin ID of the plugin instance.
     */
    public function setPluginId($plugin_id) {
        $this->pluginId = $plugin_id;
    }
    
    /**
     * Sets the requirements values.
     *
     * @param array $requirements
     *   The array of requirement values.
     */
    public function setRequirements(array $requirements) {
        $this->requirements = $requirements;
    }
    
    /**
     * Sets the source Plugin.
     *
     * @param \Drupal\migrate\Plugin\MigrateSourceInterface $source_plugin
     *   The source Plugin.
     */
    public function setSourcePlugin(MigrateSourceInterface $source_plugin) {
        $this->sourcePlugin = $source_plugin;
    }
    
    /**
     * Sets the destination Plugin.
     *
     * @param \Drupal\migrate\Plugin\MigrateDestinationInterface $destination_plugin
     *   The destination Plugin.
     */
    public function setDestinationPlugin(MigrateDestinationInterface $destination_plugin) {
        $this->destinationPlugin = $destination_plugin;
    }
    
    /**
     * Sets the plugin manager service.
     *
     * @param \Drupal\migrate\Plugin\MigrationPluginManagerInterface $plugin_manager
     *   The plugin manager service.
     */
    public function setMigrationPluginManager(MigrationPluginManagerInterface $plugin_manager) {
        $this->migrationPluginManager = $plugin_manager;
    }

}