function testShouldFindChildren()
{
$mapper = new DataMapper($this->db);
$vehicle_id = $mapper->save(array('name' => 'vehicle'));
$truck_id = $mapper->save(array('name' => 'truck', 'paths' => array($vehicle_id)));
$categories = $mapper->findChildren($vehicle_id);
$this->assertEquals(1, count($categories), 'should find only 1 child');
$this->assertEquals($truck_id, $categories[0]['id'], 'should find "truck" as the 1 child');
}
