runtimequestion 246 Testing & Code Quality · medium
A table of tests for durations
Delivery slots are written like 1h30m, 45m or 2h. parse_duration(text) turns one into minutes and is correct. Write TestParseDuration with table-driven tests (subTest) for the texts it must accept and for the texts it must refuse, so that broken versions are caught.
Write
class TestParseDuration(unittest.TestCase) with a table of valid texts and a table of invalid ones, each checked under subTestAcceptshours and/or minutes, in that order, with optional spaces around the whole text:
"1h30m" → 90, "45m" → 45, "2h" → 120, "90m" → 90, " 1h5m " → 65Refuses (ValueError)an empty text, a number without a unit (
"30"), minutes before hours ("30m1h"), and 60 or more minutes after hours ("1h75m")