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Streamline test_date_checked_add_signed

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This commit is contained in:
Moritz Oberhauser 2024-03-09 13:27:01 +01:00 committed by Paul Dicker
parent 50c0e6b93c
commit c1cb93608e
1 changed files with 32 additions and 25 deletions
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57
src/naive/date/tests.rs
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@ -445,41 +445,40 @@ fn test_date_pred() {
} }
#[test] #[test]
fn test_date_add() { fn test_date_checked_add_signed() {
fn check((y1, m1, d1): (i32, u32, u32), rhs: TimeDelta, ymd: Option<(i32, u32, u32)>) { fn check(lhs: Option<NaiveDate>, delta: TimeDelta, rhs: Option<NaiveDate>) {
let lhs = NaiveDate::from_ymd_opt(y1, m1, d1).unwrap(); assert_eq!(lhs.unwrap().checked_add_signed(delta), rhs);
let sum = ymd.map(|(y, m, d)| NaiveDate::from_ymd_opt(y, m, d).unwrap()); assert_eq!(lhs.unwrap().checked_sub_signed(-delta), rhs);
assert_eq!(lhs.checked_add_signed(rhs), sum);
assert_eq!(lhs.checked_sub_signed(-rhs), sum);
} }
let ymd = NaiveDate::from_ymd_opt;
check((2014, 1, 1), TimeDelta::zero(), Some((2014, 1, 1))); check(ymd(2014, 1, 1), TimeDelta::zero(), ymd(2014, 1, 1));
check((2014, 1, 1), TimeDelta::try_seconds(86399).unwrap(), Some((2014, 1, 1))); check(ymd(2014, 1, 1), TimeDelta::try_seconds(86399).unwrap(), ymd(2014, 1, 1));
// always round towards zero // always round towards zero
check((2014, 1, 1), TimeDelta::try_seconds(-86399).unwrap(), Some((2014, 1, 1))); check(ymd(2014, 1, 1), TimeDelta::try_seconds(-86399).unwrap(), ymd(2014, 1, 1));
check((2014, 1, 1), TimeDelta::try_days(1).unwrap(), Some((2014, 1, 2))); check(ymd(2014, 1, 1), TimeDelta::try_days(1).unwrap(), ymd(2014, 1, 2));
check((2014, 1, 1), TimeDelta::try_days(-1).unwrap(), Some((2013, 12, 31))); check(ymd(2014, 1, 1), TimeDelta::try_days(-1).unwrap(), ymd(2013, 12, 31));
check((2014, 1, 1), TimeDelta::try_days(364).unwrap(), Some((2014, 12, 31))); check(ymd(2014, 1, 1), TimeDelta::try_days(364).unwrap(), ymd(2014, 12, 31));
check((2014, 1, 1), TimeDelta::try_days(365 * 4 + 1).unwrap(), Some((2018, 1, 1))); check(ymd(2014, 1, 1), TimeDelta::try_days(365 * 4 + 1).unwrap(), ymd(2018, 1, 1));
check((2014, 1, 1), TimeDelta::try_days(365 * 400 + 97).unwrap(), Some((2414, 1, 1))); check(ymd(2014, 1, 1), TimeDelta::try_days(365 * 400 + 97).unwrap(), ymd(2414, 1, 1));
check((-7, 1, 1), TimeDelta::try_days(365 * 12 + 3).unwrap(), Some((5, 1, 1))); check(ymd(-7, 1, 1), TimeDelta::try_days(365 * 12 + 3).unwrap(), ymd(5, 1, 1));
// overflow check // overflow check
check( check(
(0, 1, 1), ymd(0, 1, 1),
TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64).unwrap(), TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64).unwrap(),
Some((MAX_YEAR, 12, 31)), ymd(MAX_YEAR, 12, 31),
); );
check((0, 1, 1), TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64 + 1).unwrap(), None); check(ymd(0, 1, 1), TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64 + 1).unwrap(), None);
check((0, 1, 1), TimeDelta::max_value(), None); check(ymd(0, 1, 1), TimeDelta::max_value(), None);
check( check(
(0, 1, 1), ymd(0, 1, 1),
TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64).unwrap(), TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64).unwrap(),
Some((MIN_YEAR, 1, 1)), ymd(MIN_YEAR, 1, 1),
); );
check((0, 1, 1), TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64 - 1).unwrap(), None); check(ymd(0, 1, 1), TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64 - 1).unwrap(), None);
check((0, 1, 1), TimeDelta::min_value(), None); check(ymd(0, 1, 1), TimeDelta::min_value(), None);
} }
#[test] #[test]
@ -497,8 +496,16 @@ fn test_date_signed_duration_since() {
check(ymd(2018, 1, 1), ymd(2014, 1, 1), TimeDelta::try_days(365 * 4 + 1).unwrap()); check(ymd(2018, 1, 1), ymd(2014, 1, 1), TimeDelta::try_days(365 * 4 + 1).unwrap());
check(ymd(2414, 1, 1), ymd(2014, 1, 1), TimeDelta::try_days(365 * 400 + 97).unwrap()); check(ymd(2414, 1, 1), ymd(2014, 1, 1), TimeDelta::try_days(365 * 400 + 97).unwrap());
check(ymd(MAX_YEAR, 12, 31), ymd(0, 1, 1), TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64).unwrap()); check(
check(ymd(MIN_YEAR, 1, 1), ymd(0, 1, 1), TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64).unwrap()); ymd(MAX_YEAR, 12, 31),
ymd(0, 1, 1),
TimeDelta::try_days(MAX_DAYS_FROM_YEAR_0 as i64).unwrap(),
);
check(
ymd(MIN_YEAR, 1, 1),
ymd(0, 1, 1),
TimeDelta::try_days(MIN_DAYS_FROM_YEAR_0 as i64).unwrap(),
);
} }
#[test] #[test]