public function testGetPlaylistItemsByPlaylistId()
{
$GOOGLE_ZEITGEIST_PLAYLIST = 'PL590L5WQmH8fJ54F369BLDSqIwcs-TCfs';
$response = $this->youtube->getPlaylistItemsByPlaylistId($GOOGLE_ZEITGEIST_PLAYLIST);
$this->assertTrue(count($response) > 0);
$this->assertEquals('youtube#playlistItem', $response[0]->kind);
}