public function testFindNoLinksInHTML()
 {
     $html = '<div><p>Hello World</p></div>';
     $mf2 = Mf2\parse($html, 'http://source.example.net/');
     $links = IndieWeb\MentionClientTest::findOutgoingLinks($mf2);
     $this->assertEquals(array(), $links);
 }