Add a dedicated fuzz_large_year target with structured inputs biased
toward large years (near 9999 boundary, up to GNU_MAX_YEAR). Keep the
original fuzz_parse_datetime target unchanged for raw-bytes fuzzing.
Replace hand-rolled format_offset_colon / format_for_assert helpers
with the new Display impls. Replace local expect_in_range_datetime
test helpers with ParsedDateTime::expect_in_range().
The Timestamp variant was #[cfg(test)]-gated dead code outside tests.
The parse_timestamp function already calls set_timestamp on the builder
directly, bypassing the TryFrom<Vec<Item>> path. Remove the variant and
refactor builder tests to exercise set_timestamp directly instead.
Cover the extended year functionality introduced in #263:
- Basic extended year parsing (year 10000)
- Rollover from in-range to extended (9999-12-31 +1 day)
- Relative parsing with extended year base date
- Large year parsing (year 999999)
NOTE: This commit only adds tests as the implementation was already
working correctly. These tests document and verify the expected
behavior for the embedded timezone edge case referenced in Debian
bug #851934.
Sylvestre Ledru
renovate[bot]
Daniel Hofstetter
codspeed-hq[bot]
abhishekpradhan
oech3