function testPerformFailedEntityHasChildren()
{
$entity = new ServiceNode();
$entity->set('oid', $id = 1001);
$node =& $entity->getNodePart();
$node->set('id', $node_id = 10);
$this->tree->expectOnce('countChildren', array($node_id));
$this->tree->setReturnValue('countChildren', 1);
$command = new ServiceNodeDeleteCommand($entity);
$this->assertEqual($command->perform(), LIMB_STATUS_ERROR);
$uow =& $this->toolkit->getUOW();
$this->assertFalse($uow->isDeleted($entity));
}
