gistfile1.php

  $values = array(
    'uid' => 1,
    'type' => 'school',
    'title' => time(),
  );
  $group = entity_create('node', $values);
  node_save($group);

  $values = array(
    'uid' => 1,
    'type' => 'article',
    'title' => time(),
  );
  $node = entity_create('node', $values);
  node_save($node);
  og_group('node', $group->nid, array('entity_type' => 'node', 'entity' => $node));

  //dpm($group->nid, 'group');
  dpm($node->nid, 'content');
  node_delete($group->nid);

  $queue = DrupalQueue::get('og_membership_orphans');
  $item = $queue->claimItem();

  og_membership_orphans_worker($item);