    public function testMatchTags () {
        $contact = $this->contacts ('testAnyone');
        $tags = array ('#test', '#test2', '#test3', '#test-test4');
        $this->assertEquals ($tags, $contact->matchTags (implode (' , ', $tags)));
    }
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.