public function testGetLinksWithTag()
{
$mm = new MultimediaObject();
$m1 = new Link();
$m1->setTags(array('master'));
$m2 = new Link();
$m2->setTags(array('mosca', 'master', 'old'));
$m3 = new Link();
$m3->setTags(array('master', 'mosca'));
$m4 = new Link();
$m4->setTags(array('flv', 'itunes', 'hide'));
$m5 = new Link();
$m5->setTags(array('flv', 'webtv'));
$mm->addLink($m3);
$mm->addLink($m2);
$mm->addLink($m1);
$mm->addLink($m4);
$mm->addLink($m5);
$this->assertEquals(array($m3, $m2, $m1), $mm->getLinksWithTag('master'));
$this->assertEquals($m3, $mm->getLinkWithTag('master'));
$this->assertEquals(null, $mm->getLinkWithTag('del_universo'));
$this->assertEquals($m3, $mm->getLinkWithAnyTag(array('master', 'pr')));
$this->assertEquals(array($m2), $mm->getLinksWithAllTags(array('master', 'mosca', 'old')));
$this->assertTrue(in_array($mm->getLinkWithAllTags(array('mosca', 'master')), array($m3, $m2)));
$this->assertEquals(null, $mm->getLinkWithAllTags(array('mosca', 'master', 'del_universo')));
$this->assertEquals(4, count($mm->getLinksWithAnyTag(array('master', 'webtv'))));
$this->assertEquals(1, count($mm->getLinkWithAnyTag(array('master'))));
$this->assertEquals(null, $mm->getLinkWithAnyTag(array('del_universo')));
$this->assertEquals(5, count($mm->getFilteredLinksWithTags()));
$this->assertEquals(3, count($mm->getFilteredLinksWithTags(array('master'))));
$this->assertEquals(1, count($mm->getFilteredLinksWithTags(array('master'), array('mosca', 'old'))));
$this->assertEquals(0, count($mm->getFilteredLinksWithTags(array(), array('mosca', 'old'), array('master'))));
$this->assertEquals(3, count($mm->getFilteredLinksWithTags(array(), array(), array('flv'))));
$this->assertEquals(0, count($mm->getFilteredLinksWithTags(array(), array(), array('flv', 'master'))));
$this->assertEquals(5, count($mm->getFilteredLinksWithTags(array(), array(), array(), array('flv', 'master'))));
$this->assertEquals(1, count($mm->getFilteredLinksWithTags(array('mosca', 'old'), array(), array(), array('old'))));
}
