public function testGetTracksWithTag()
{
$mm = new MultimediaObject();
$t1 = new Track();
$t1->setTags(array('master'));
$t2 = new Track();
$t2->setTags(array('mosca', 'master', 'old'));
$t3 = new Track();
$t3->setTags(array('master', 'mosca'));
$t4 = new Track();
$t4->setTags(array('flv', 'itunes', 'hide'));
$t5 = new Track();
$t5->setTags(array('flv', 'webtv'));
$mm->addTrack($t3);
$mm->addTrack($t2);
$mm->addTrack($t1);
$mm->addTrack($t4);
$mm->addTrack($t5);
$this->assertEquals(array($t3, $t2, $t1), $mm->getTracksWithTag('master'));
$this->assertEquals($t3, $mm->getTrackWithTag('master'));
$this->assertEquals(null, $mm->getTrackWithTag('del_universo'));
$this->assertEquals($t3, $mm->getTrackWithAnyTag(array('master', 'pr')));
$this->assertEquals(array($t2), $mm->getTracksWithAllTags(array('master', 'mosca', 'old')));
$this->assertTrue(in_array($mm->getTrackWithAllTags(array('mosca', 'master')), array($t3, $t2)));
$this->assertEquals(null, $mm->getTrackWithAllTags(array('mosca', 'master', 'del_universo')));
$this->assertEquals(4, count($mm->getTracksWithAnyTag(array('master', 'webtv'))));
$this->assertEquals(1, count($mm->getTrackWithAnyTag(array('master'))));
$this->assertEquals(null, $mm->getTrackWithAnyTag(array('del_universo')));
$this->assertEquals(5, count($mm->getFilteredTracksWithTags()));
$this->assertEquals(3, count($mm->getFilteredTracksWithTags(array('master'))));
$this->assertEquals(1, count($mm->getFilteredTracksWithTags(array('master'), array('mosca', 'old'))));
$this->assertEquals(0, count($mm->getFilteredTracksWithTags(array(), array('mosca', 'old'), array('master'))));
$this->assertEquals(3, count($mm->getFilteredTracksWithTags(array(), array(), array('flv'))));
$this->assertEquals(0, count($mm->getFilteredTracksWithTags(array(), array(), array('flv', 'master'))));
$this->assertEquals(5, count($mm->getFilteredTracksWithTags(array(), array(), array(), array('flv', 'master'))));
$this->assertEquals(1, count($mm->getFilteredTracksWithTags(array('mosca', 'old'), array(), array(), array('old'))));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags()));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags(array('master'))));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags(array('master'), array('mosca', 'old'))));
$this->assertEquals(0, count($mm->getFilteredTrackWithTags(array(), array('mosca', 'old'), array('master'))));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags(array(), array(), array('flv'))));
$this->assertEquals(0, count($mm->getFilteredTrackWithTags(array(), array(), array('flv', 'master'))));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags(array(), array(), array(), array('flv', 'master'))));
$this->assertEquals(1, count($mm->getFilteredTrackWithTags(array('mosca', 'old'), array(), array(), array('old'))));
}