class StringParserCanManipulateTimeDeltas(unittest.TestCase): def setUp(self): self.subtitle_string = """2 00:01:04,788 --> 00:01:10,192 Take a lock of his hair back to Korea. 3 00:01:13,464 --> 00:01:17,696 Fear not, l will take this to your family. 4 00:01:25,809 --> 00:01:27,333 AD 1 3 75-The first year of the King WOO, Korean Dynasty.""" self.parser = StringParser(self.subtitle_string) self.parser.parse() def test_parser_advance_by_seconds(self): self.parser.uptick(timedelta(seconds=5)) self.assertEqual(SubtitleDelta(timedelta(minutes=1, seconds=9, milliseconds=788), timedelta(minutes=1, seconds=15, milliseconds=192)), self.parser.lines[1]) self.assertEqual(SubtitleDelta(timedelta(minutes=1, seconds=18, milliseconds=464), timedelta(minutes=1, seconds=22, milliseconds=696)), self.parser.lines[5]) self.assertEqual(SubtitleDelta(timedelta(minutes=1, seconds=30, milliseconds=809), timedelta(minutes=1, seconds=32, milliseconds=333)), self.parser.lines[9]) def test_parser_decline_by_seconds(self): self.parser.downtick(timedelta(seconds=5)) self.assertEqual(SubtitleDelta(timedelta(minutes=1, seconds=20, milliseconds=809), timedelta(minutes=1, seconds=22, milliseconds=333)), self.parser.lines[9])