public function testFindLinksInProperties()
 {
     $input = json_decode('{
   "type": [
     "h-entry"
   ],
   "properties": {
     "author": [
       {
         "type": [
           "h-card"
         ],
         "properties": {
           "url": [
             "http://example.com/"
           ],
           "name": [
             "example"
           ]
         },
         "value": "example"
       }
     ],
     "name": [
       "#example"
     ],
     "url": [
       "http://source.example.net/"
     ]
   }
 }');
     $links = IndieWeb\MentionClientTest::findLinksInJSON($input);
     $this->assertEquals(array('http://example.com/', 'http://source.example.net/'), $links);
 }