fix: end of week boundary (#508)

core/expression/src/vm/date/mod.rs

@@ -312,10 +312,10 @@ mod helper {
             DurationUnit::Hour => date_time.with_minute(59)?.with_second(59)?,
             DurationUnit::Day => date_time.with_hour(23)?.with_minute(59)?.with_second(59)?,
             DurationUnit::Week => {
-                let weekday = date_time.weekday().num_days_from_sunday();
+                let days_until_sunday = 6 - date_time.weekday().num_days_from_monday();
 
                 date_time
-                    .checked_add_days(Days::new(weekday.to_u64()?))?
+                    .checked_add_days(Days::new(days_until_sunday.to_u64()?))?
                     .with_hour(23)?
                     .with_minute(59)?
                     .with_second(59)?

core/expression/tests/data/date.csv

@@ -101,6 +101,10 @@ d('2023-10-15').startOf('year');;'2023-01-01T00:00:00Z'
 d('2023-10-15').endOf('year');;'2023-12-31T23:59:59Z'
 d('2023-10-15').startOf('week');;'2023-10-09T00:00:00Z'
 d('2023-10-15').endOf('week');;'2023-10-15T23:59:59Z'
+d('2024-01-15').startOf('week');;'2024-01-15T00:00:00Z'
+d('2024-01-15').endOf('week');;'2024-01-21T23:59:59Z'
+d('2024-01-16').endOf('week');;'2024-01-21T23:59:59Z'
+d('2024-01-21').endOf('week');;'2024-01-21T23:59:59Z'
 d('2023-10-15').startOf('quarter');;'2023-10-01T00:00:00Z'
 d('2023-10-15').endOf('quarter');;'2023-12-31T23:59:59Z'
 d('2023-03-15').startOf('quarter');;'2023-01-01T00:00:00Z'