    public function testMatchTags () {
        $contact = $this->contacts ('testAnyone');
        $tags = array ('#test', '#test2', '#test3', '#test-test4');
        $this->assertEquals ($tags, $contact->matchTags (implode (' , ', $tags)));
    }
The product receives input or data, but it does
        not validate or incorrectly validates that the input has the
        properties that are required to process the data safely and
        correctly.