function testPluckObject()
{
$billy = new stdClass();
$billy->name = 'Billy Corgan';
$billy->instrument = 'guitar';
$jimmy = new stdClass();
$jimmy->name = 'Jimmy Chamberlin';
$jimmy->instrument = 'drums';
$pumpkins = array($billy, $jimmy);
$instruments = \Timber\Helper::pluck($pumpkins, 'instrument');
$this->assertEquals(array('guitar', 'drums'), $instruments);
}