'Test the style 0 of time_format.'

def test_style_0(self):

    self.assertEqual(utils.time_format(0, 0), '00:00')
    self.assertEqual(utils.time_format(28, 0), '00:00')
    self.assertEqual(utils.time_format(92, 0), '00:01')
    self.assertEqual(utils.time_format(300, 0), '00:05')
    self.assertEqual(utils.time_format(660, 0), '00:11')
    self.assertEqual(utils.time_format(3600, 0), '01:00')
    self.assertEqual(utils.time_format(3725, 0), '01:02')
    self.assertEqual(utils.time_format(86350, 0), '23:59')
    self.assertEqual(utils.time_format(86800, 0), '1d    00:06')
    self.assertEqual(utils.time_format(130800, 0), '1d    12:20')
    self.assertEqual(utils.time_format(530800, 0), '6d    03:26')
