public function testMissingSetNoAndSeqNo()
{
$product = new Product();
$track11 = new Track();
$product->addTrack($track11);
$track12 = new Track();
$track12->setSetNo(1);
$track12->setSeqNo(2);
$product->addTrack($track12);
$position = new TrackPosition($product);
$this->assertEquals(1, $position->getPosition($track11));
$this->assertEquals(1, $position->getPosition($track12));
}
public function getPosition(Track $track)
{
$set = (int) $track->getSetNo();
$sequence = (int) $track->getSeqNo();
if (!array_key_exists($set, $this->sets)) {
return 1;
}
if (!array_key_exists($sequence, $this->sets[$set])) {
return 1;
}
if (!$set) {
return 1;
}
if ($set === 1) {
return $sequence;
}
$position = 0;
for ($x = 1; $x < $set; $x++) {
if (array_key_exists($x, $this->sets)) {
$position += count($this->sets[$x]);
}
}
return $position + $sequence;
}
