public static function results_as_rows($votes)
 {
     foreach ($votes as $result) {
         $row = array($result['text']);
         $row[] = $result['votes'];
         $row[] = format_float($result['percent'], 1) . '%';
         $row[] = progress::bar($result['percent']);
         $rows[] = $row;
     }
     return $rows;
 }
 public function test_empty_progress_bar()
 {
     $expected = '<div class=progress><div class=bar style="width:0%"></div></div>';
     $actual = progress::bar(0);
     $this->assertSame($expected, $actual);
 }