| use super::DateTime; |
| use crate::naive::{NaiveDate, NaiveTime}; |
| use crate::offset::{FixedOffset, TimeZone, Utc}; |
| #[cfg(feature = "clock")] |
| use crate::offset::{Local, Offset}; |
| use crate::{Datelike, Days, LocalResult, Months, NaiveDateTime, TimeDelta, Timelike, Weekday}; |
| |
| #[derive(Clone)] |
| struct DstTester; |
| |
| impl DstTester { |
| fn winter_offset() -> FixedOffset { |
| FixedOffset::east_opt(8 * 60 * 60).unwrap() |
| } |
| fn summer_offset() -> FixedOffset { |
| FixedOffset::east_opt(9 * 60 * 60).unwrap() |
| } |
| |
| const TO_WINTER_MONTH_DAY: (u32, u32) = (4, 15); |
| const TO_SUMMER_MONTH_DAY: (u32, u32) = (9, 15); |
| |
| fn transition_start_local() -> NaiveTime { |
| NaiveTime::from_hms_opt(2, 0, 0).unwrap() |
| } |
| } |
| |
| impl TimeZone for DstTester { |
| type Offset = FixedOffset; |
| |
| fn from_offset(_: &Self::Offset) -> Self { |
| DstTester |
| } |
| |
| fn offset_from_local_date(&self, _: &NaiveDate) -> crate::LocalResult<Self::Offset> { |
| unimplemented!() |
| } |
| |
| fn offset_from_local_datetime( |
| &self, |
| local: &NaiveDateTime, |
| ) -> crate::LocalResult<Self::Offset> { |
| let local_to_winter_transition_start = NaiveDate::from_ymd_opt( |
| local.year(), |
| DstTester::TO_WINTER_MONTH_DAY.0, |
| DstTester::TO_WINTER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local()); |
| |
| let local_to_winter_transition_end = NaiveDate::from_ymd_opt( |
| local.year(), |
| DstTester::TO_WINTER_MONTH_DAY.0, |
| DstTester::TO_WINTER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local() - TimeDelta::hours(1)); |
| |
| let local_to_summer_transition_start = NaiveDate::from_ymd_opt( |
| local.year(), |
| DstTester::TO_SUMMER_MONTH_DAY.0, |
| DstTester::TO_SUMMER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local()); |
| |
| let local_to_summer_transition_end = NaiveDate::from_ymd_opt( |
| local.year(), |
| DstTester::TO_SUMMER_MONTH_DAY.0, |
| DstTester::TO_SUMMER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local() + TimeDelta::hours(1)); |
| |
| if *local < local_to_winter_transition_end || *local >= local_to_summer_transition_end { |
| LocalResult::Single(DstTester::summer_offset()) |
| } else if *local >= local_to_winter_transition_start |
| && *local < local_to_summer_transition_start |
| { |
| LocalResult::Single(DstTester::winter_offset()) |
| } else if *local >= local_to_winter_transition_end |
| && *local < local_to_winter_transition_start |
| { |
| LocalResult::Ambiguous(DstTester::winter_offset(), DstTester::summer_offset()) |
| } else if *local >= local_to_summer_transition_start |
| && *local < local_to_summer_transition_end |
| { |
| LocalResult::None |
| } else { |
| panic!("Unexpected local time {}", local) |
| } |
| } |
| |
| fn offset_from_utc_date(&self, _: &NaiveDate) -> Self::Offset { |
| unimplemented!() |
| } |
| |
| fn offset_from_utc_datetime(&self, utc: &NaiveDateTime) -> Self::Offset { |
| let utc_to_winter_transition = NaiveDate::from_ymd_opt( |
| utc.year(), |
| DstTester::TO_WINTER_MONTH_DAY.0, |
| DstTester::TO_WINTER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local()) |
| - DstTester::summer_offset(); |
| |
| let utc_to_summer_transition = NaiveDate::from_ymd_opt( |
| utc.year(), |
| DstTester::TO_SUMMER_MONTH_DAY.0, |
| DstTester::TO_SUMMER_MONTH_DAY.1, |
| ) |
| .unwrap() |
| .and_time(DstTester::transition_start_local()) |
| - DstTester::winter_offset(); |
| |
| if *utc < utc_to_winter_transition || *utc >= utc_to_summer_transition { |
| DstTester::summer_offset() |
| } else if *utc >= utc_to_winter_transition && *utc < utc_to_summer_transition { |
| DstTester::winter_offset() |
| } else { |
| panic!("Unexpected utc time {}", utc) |
| } |
| } |
| } |
| |
| #[test] |
| fn test_datetime_add_days() { |
| let est = FixedOffset::west_opt(5 * 60 * 60).unwrap(); |
| let kst = FixedOffset::east_opt(9 * 60 * 60).unwrap(); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Days::new(5)), |
| "2014-05-11 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Days::new(5)), |
| "2014-05-11 07:08:09 +09:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Days::new(35)), |
| "2014-06-10 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Days::new(35)), |
| "2014-06-10 07:08:09 +09:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", DstTester.with_ymd_and_hms(2014, 4, 6, 7, 8, 9).unwrap() + Days::new(5)), |
| "2014-04-11 07:08:09 +09:00" |
| ); |
| assert_eq!( |
| format!("{}", DstTester.with_ymd_and_hms(2014, 4, 6, 7, 8, 9).unwrap() + Days::new(10)), |
| "2014-04-16 07:08:09 +08:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", DstTester.with_ymd_and_hms(2014, 9, 6, 7, 8, 9).unwrap() + Days::new(5)), |
| "2014-09-11 07:08:09 +08:00" |
| ); |
| assert_eq!( |
| format!("{}", DstTester.with_ymd_and_hms(2014, 9, 6, 7, 8, 9).unwrap() + Days::new(10)), |
| "2014-09-16 07:08:09 +09:00" |
| ); |
| } |
| |
| #[test] |
| fn test_datetime_sub_days() { |
| let est = FixedOffset::west_opt(5 * 60 * 60).unwrap(); |
| let kst = FixedOffset::east_opt(9 * 60 * 60).unwrap(); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Days::new(5)), |
| "2014-05-01 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Days::new(5)), |
| "2014-05-01 07:08:09 +09:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Days::new(35)), |
| "2014-04-01 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Days::new(35)), |
| "2014-04-01 07:08:09 +09:00" |
| ); |
| } |
| |
| #[test] |
| fn test_datetime_add_months() { |
| let est = FixedOffset::west_opt(5 * 60 * 60).unwrap(); |
| let kst = FixedOffset::east_opt(9 * 60 * 60).unwrap(); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Months::new(1)), |
| "2014-06-06 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Months::new(1)), |
| "2014-06-06 07:08:09 +09:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Months::new(5)), |
| "2014-10-06 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() + Months::new(5)), |
| "2014-10-06 07:08:09 +09:00" |
| ); |
| } |
| |
| #[test] |
| fn test_datetime_sub_months() { |
| let est = FixedOffset::west_opt(5 * 60 * 60).unwrap(); |
| let kst = FixedOffset::east_opt(9 * 60 * 60).unwrap(); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Months::new(1)), |
| "2014-04-06 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Months::new(1)), |
| "2014-04-06 07:08:09 +09:00" |
| ); |
| |
| assert_eq!( |
| format!("{}", est.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Months::new(5)), |
| "2013-12-06 07:08:09 -05:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap() - Months::new(5)), |
| "2013-12-06 07:08:09 +09:00" |
| ); |
| } |
| |
| // local helper function to easily create a DateTime<FixedOffset> |
| #[allow(clippy::too_many_arguments)] |
| fn ymdhms( |
| fixedoffset: &FixedOffset, |
| year: i32, |
| month: u32, |
| day: u32, |
| hour: u32, |
| min: u32, |
| sec: u32, |
| ) -> DateTime<FixedOffset> { |
| fixedoffset.with_ymd_and_hms(year, month, day, hour, min, sec).unwrap() |
| } |
| |
| // local helper function to easily create a DateTime<FixedOffset> |
| #[allow(clippy::too_many_arguments)] |
| fn ymdhms_milli( |
| fixedoffset: &FixedOffset, |
| year: i32, |
| month: u32, |
| day: u32, |
| hour: u32, |
| min: u32, |
| sec: u32, |
| milli: u32, |
| ) -> DateTime<FixedOffset> { |
| fixedoffset |
| .with_ymd_and_hms(year, month, day, hour, min, sec) |
| .unwrap() |
| .with_nanosecond(milli * 1_000_000) |
| .unwrap() |
| } |
| |
| // local helper function to easily create a DateTime<FixedOffset> |
| #[allow(clippy::too_many_arguments)] |
| #[cfg(feature = "alloc")] |
| fn ymdhms_micro( |
| fixedoffset: &FixedOffset, |
| year: i32, |
| month: u32, |
| day: u32, |
| hour: u32, |
| min: u32, |
| sec: u32, |
| micro: u32, |
| ) -> DateTime<FixedOffset> { |
| fixedoffset |
| .with_ymd_and_hms(year, month, day, hour, min, sec) |
| .unwrap() |
| .with_nanosecond(micro * 1000) |
| .unwrap() |
| } |
| |
| // local helper function to easily create a DateTime<FixedOffset> |
| #[allow(clippy::too_many_arguments)] |
| #[cfg(feature = "alloc")] |
| fn ymdhms_nano( |
| fixedoffset: &FixedOffset, |
| year: i32, |
| month: u32, |
| day: u32, |
| hour: u32, |
| min: u32, |
| sec: u32, |
| nano: u32, |
| ) -> DateTime<FixedOffset> { |
| fixedoffset |
| .with_ymd_and_hms(year, month, day, hour, min, sec) |
| .unwrap() |
| .with_nanosecond(nano) |
| .unwrap() |
| } |
| |
| // local helper function to easily create a DateTime<Utc> |
| #[cfg(feature = "alloc")] |
| fn ymdhms_utc(year: i32, month: u32, day: u32, hour: u32, min: u32, sec: u32) -> DateTime<Utc> { |
| Utc.with_ymd_and_hms(year, month, day, hour, min, sec).unwrap() |
| } |
| |
| // local helper function to easily create a DateTime<Utc> |
| fn ymdhms_milli_utc( |
| year: i32, |
| month: u32, |
| day: u32, |
| hour: u32, |
| min: u32, |
| sec: u32, |
| milli: u32, |
| ) -> DateTime<Utc> { |
| Utc.with_ymd_and_hms(year, month, day, hour, min, sec) |
| .unwrap() |
| .with_nanosecond(milli * 1_000_000) |
| .unwrap() |
| } |
| |
| #[test] |
| fn test_datetime_offset() { |
| let est = FixedOffset::west_opt(5 * 60 * 60).unwrap(); |
| let edt = FixedOffset::west_opt(4 * 60 * 60).unwrap(); |
| let kst = FixedOffset::east_opt(9 * 60 * 60).unwrap(); |
| |
| assert_eq!( |
| format!("{}", Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06 07:08:09 UTC" |
| ); |
| assert_eq!( |
| format!("{}", edt.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06 07:08:09 -04:00" |
| ); |
| assert_eq!( |
| format!("{}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06 07:08:09 +09:00" |
| ); |
| assert_eq!( |
| format!("{:?}", Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06T07:08:09Z" |
| ); |
| assert_eq!( |
| format!("{:?}", edt.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06T07:08:09-04:00" |
| ); |
| assert_eq!( |
| format!("{:?}", kst.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap()), |
| "2014-05-06T07:08:09+09:00" |
| ); |
| |
| // edge cases |
| assert_eq!( |
| format!("{:?}", Utc.with_ymd_and_hms(2014, 5, 6, 0, 0, 0).unwrap()), |
| "2014-05-06T00:00:00Z" |
| ); |
| assert_eq!( |
| format!("{:?}", edt.with_ymd_and_hms(2014, 5, 6, 0, 0, 0).unwrap()), |
| "2014-05-06T00:00:00-04:00" |
| ); |
| assert_eq!( |
| format!("{:?}", kst.with_ymd_and_hms(2014, 5, 6, 0, 0, 0).unwrap()), |
| "2014-05-06T00:00:00+09:00" |
| ); |
| assert_eq!( |
| format!("{:?}", Utc.with_ymd_and_hms(2014, 5, 6, 23, 59, 59).unwrap()), |
| "2014-05-06T23:59:59Z" |
| ); |
| assert_eq!( |
| format!("{:?}", edt.with_ymd_and_hms(2014, 5, 6, 23, 59, 59).unwrap()), |
| "2014-05-06T23:59:59-04:00" |
| ); |
| assert_eq!( |
| format!("{:?}", kst.with_ymd_and_hms(2014, 5, 6, 23, 59, 59).unwrap()), |
| "2014-05-06T23:59:59+09:00" |
| ); |
| |
| let dt = Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap(); |
| assert_eq!(dt, edt.with_ymd_and_hms(2014, 5, 6, 3, 8, 9).unwrap()); |
| assert_eq!( |
| dt + TimeDelta::seconds(3600 + 60 + 1), |
| Utc.with_ymd_and_hms(2014, 5, 6, 8, 9, 10).unwrap() |
| ); |
| assert_eq!( |
| dt.signed_duration_since(edt.with_ymd_and_hms(2014, 5, 6, 10, 11, 12).unwrap()), |
| TimeDelta::seconds(-7 * 3600 - 3 * 60 - 3) |
| ); |
| |
| assert_eq!(*Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap().offset(), Utc); |
| assert_eq!(*edt.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap().offset(), edt); |
| assert!(*edt.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap().offset() != est); |
| } |
| |
| #[test] |
| #[allow(clippy::needless_borrow, clippy::op_ref)] |
| fn signed_duration_since_autoref() { |
| let dt1 = Utc.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap(); |
| let dt2 = Utc.with_ymd_and_hms(2014, 3, 4, 5, 6, 7).unwrap(); |
| let diff1 = dt1.signed_duration_since(dt2); // Copy/consume |
| #[allow(clippy::needless_borrows_for_generic_args)] |
| let diff2 = dt2.signed_duration_since(&dt1); // Take by reference |
| assert_eq!(diff1, -diff2); |
| |
| let diff1 = dt1 - &dt2; // We can choose to substract rhs by reference |
| let diff2 = dt2 - dt1; // Or consume rhs |
| assert_eq!(diff1, -diff2); |
| } |
| |
| #[test] |
| fn test_datetime_date_and_time() { |
| let tz = FixedOffset::east_opt(5 * 60 * 60).unwrap(); |
| let d = tz.with_ymd_and_hms(2014, 5, 6, 7, 8, 9).unwrap(); |
| assert_eq!(d.time(), NaiveTime::from_hms_opt(7, 8, 9).unwrap()); |
| assert_eq!(d.date_naive(), NaiveDate::from_ymd_opt(2014, 5, 6).unwrap()); |
| |
| let tz = FixedOffset::east_opt(4 * 60 * 60).unwrap(); |
| let d = tz.with_ymd_and_hms(2016, 5, 4, 3, 2, 1).unwrap(); |
| assert_eq!(d.time(), NaiveTime::from_hms_opt(3, 2, 1).unwrap()); |
| assert_eq!(d.date_naive(), NaiveDate::from_ymd_opt(2016, 5, 4).unwrap()); |
| |
| let tz = FixedOffset::west_opt(13 * 60 * 60).unwrap(); |
| let d = tz.with_ymd_and_hms(2017, 8, 9, 12, 34, 56).unwrap(); |
| assert_eq!(d.time(), NaiveTime::from_hms_opt(12, 34, 56).unwrap()); |
| assert_eq!(d.date_naive(), NaiveDate::from_ymd_opt(2017, 8, 9).unwrap()); |
| |
| let utc_d = Utc.with_ymd_and_hms(2017, 8, 9, 12, 34, 56).unwrap(); |
| assert!(utc_d < d); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_with_timezone() { |
| let local_now = Local::now(); |
| let utc_now = local_now.with_timezone(&Utc); |
| let local_now2 = utc_now.with_timezone(&Local); |
| assert_eq!(local_now, local_now2); |
| } |
| |
| #[test] |
| #[cfg(feature = "alloc")] |
| fn test_datetime_rfc2822() { |
| let edt = FixedOffset::east_opt(5 * 60 * 60).unwrap(); |
| |
| // timezone 0 |
| assert_eq!( |
| Utc.with_ymd_and_hms(2015, 2, 18, 23, 16, 9).unwrap().to_rfc2822(), |
| "Wed, 18 Feb 2015 23:16:09 +0000" |
| ); |
| assert_eq!( |
| Utc.with_ymd_and_hms(2015, 2, 1, 23, 16, 9).unwrap().to_rfc2822(), |
| "Sun, 1 Feb 2015 23:16:09 +0000" |
| ); |
| // timezone +05 |
| assert_eq!( |
| edt.from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap() |
| .to_rfc2822(), |
| "Wed, 18 Feb 2015 23:16:09 +0500" |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:59:60 +0500"), |
| Ok(edt |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 59, 59, 1_000) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert!(DateTime::parse_from_rfc2822("31 DEC 262143 23:59 -2359").is_err()); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+05:00"), |
| Ok(edt |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_micro_opt(23, 59, 59, 1_234_567) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| // seconds 60 |
| assert_eq!( |
| edt.from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_micro_opt(23, 59, 59, 1_234_567) |
| .unwrap() |
| ) |
| .unwrap() |
| .to_rfc2822(), |
| "Wed, 18 Feb 2015 23:59:60 +0500" |
| ); |
| |
| assert_eq!( |
| DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:16:09 +0000"), |
| Ok(FixedOffset::east_opt(0).unwrap().with_ymd_and_hms(2015, 2, 18, 23, 16, 9).unwrap()) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:16:09 -0000"), |
| Ok(FixedOffset::east_opt(0).unwrap().with_ymd_and_hms(2015, 2, 18, 23, 16, 9).unwrap()) |
| ); |
| assert_eq!( |
| ymdhms_micro(&edt, 2015, 2, 18, 23, 59, 59, 1_234_567).to_rfc2822(), |
| "Wed, 18 Feb 2015 23:59:60 +0500" |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:59:58 +0500"), |
| Ok(ymdhms(&edt, 2015, 2, 18, 23, 59, 58)) |
| ); |
| assert_ne!( |
| DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:59:58 +0500"), |
| Ok(ymdhms_milli(&edt, 2015, 2, 18, 23, 59, 58, 500)) |
| ); |
| |
| // many varying whitespace intermixed |
| assert_eq!( |
| DateTime::parse_from_rfc2822( |
| "\t\t\tWed,\n\t\t18 \r\n\t\tFeb \u{3000} 2015\r\n\t\t\t23:59:58 \t+0500" |
| ), |
| Ok(ymdhms(&edt, 2015, 2, 18, 23, 59, 58)) |
| ); |
| // example from RFC 2822 Appendix A.5. |
| assert_eq!( |
| DateTime::parse_from_rfc2822( |
| "Thu,\n\t13\n Feb\n 1969\n 23:32\n -0330 (Newfoundland Time)" |
| ), |
| Ok( |
| ymdhms( |
| &FixedOffset::east_opt(-3 * 60 * 60 - 30 * 60).unwrap(), |
| 1969, 2, 13, 23, 32, 0, |
| ) |
| ) |
| ); |
| // example from RFC 2822 Appendix A.5. without trailing " (Newfoundland Time)" |
| assert_eq!( |
| DateTime::parse_from_rfc2822( |
| "Thu,\n\t13\n Feb\n 1969\n 23:32\n -0330" |
| ), |
| Ok( |
| ymdhms(&FixedOffset::east_opt(-3 * 60 * 60 - 30 * 60).unwrap(), 1969, 2, 13, 23, 32, 0,) |
| ) |
| ); |
| |
| // bad year |
| assert!(DateTime::parse_from_rfc2822("31 DEC 262143 23:59 -2359").is_err()); |
| // wrong format |
| assert!(DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:16:09 +00:00").is_err()); |
| // full name day of week |
| assert!(DateTime::parse_from_rfc2822("Wednesday, 18 Feb 2015 23:16:09 +0000").is_err()); |
| // full name day of week |
| assert!(DateTime::parse_from_rfc2822("Wednesday 18 Feb 2015 23:16:09 +0000").is_err()); |
| // wrong day of week separator '.' |
| assert!(DateTime::parse_from_rfc2822("Wed. 18 Feb 2015 23:16:09 +0000").is_err()); |
| // *trailing* space causes failure |
| assert!(DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:16:09 +0000 ").is_err()); |
| } |
| |
| #[test] |
| #[cfg(feature = "alloc")] |
| fn test_datetime_rfc3339() { |
| let edt5 = FixedOffset::east_opt(5 * 60 * 60).unwrap(); |
| let edt0 = FixedOffset::east_opt(0).unwrap(); |
| |
| // timezone 0 |
| assert_eq!( |
| Utc.with_ymd_and_hms(2015, 2, 18, 23, 16, 9).unwrap().to_rfc3339(), |
| "2015-02-18T23:16:09+00:00" |
| ); |
| // timezone +05 |
| assert_eq!( |
| edt5.from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap() |
| .to_rfc3339(), |
| "2015-02-18T23:16:09.150+05:00" |
| ); |
| |
| assert_eq!(ymdhms_utc(2015, 2, 18, 23, 16, 9).to_rfc3339(), "2015-02-18T23:16:09+00:00"); |
| assert_eq!( |
| ymdhms_milli(&edt5, 2015, 2, 18, 23, 16, 9, 150).to_rfc3339(), |
| "2015-02-18T23:16:09.150+05:00" |
| ); |
| assert_eq!( |
| ymdhms_micro(&edt5, 2015, 2, 18, 23, 59, 59, 1_234_567).to_rfc3339(), |
| "2015-02-18T23:59:60.234567+05:00" |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:59:59.123+05:00"), |
| Ok(ymdhms_micro(&edt5, 2015, 2, 18, 23, 59, 59, 123_000)) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:59:59.123456+05:00"), |
| Ok(ymdhms_micro(&edt5, 2015, 2, 18, 23, 59, 59, 123_456)) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:59:59.123456789+05:00"), |
| Ok(ymdhms_nano(&edt5, 2015, 2, 18, 23, 59, 59, 123_456_789)) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:16:09Z"), |
| Ok(ymdhms(&edt0, 2015, 2, 18, 23, 16, 9)) |
| ); |
| |
| assert_eq!( |
| ymdhms_micro(&edt5, 2015, 2, 18, 23, 59, 59, 1_234_567).to_rfc3339(), |
| "2015-02-18T23:59:60.234567+05:00" |
| ); |
| assert_eq!( |
| ymdhms_milli(&edt5, 2015, 2, 18, 23, 16, 9, 150).to_rfc3339(), |
| "2015-02-18T23:16:09.150+05:00" |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T00:00:00.234567+05:00"), |
| Ok(ymdhms_micro(&edt5, 2015, 2, 18, 0, 0, 0, 234_567)) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18T23:16:09Z"), |
| Ok(ymdhms(&edt0, 2015, 2, 18, 23, 16, 9)) |
| ); |
| assert_eq!( |
| DateTime::parse_from_rfc3339("2015-02-18 23:59:60.234567+05:00"), |
| Ok(ymdhms_micro(&edt5, 2015, 2, 18, 23, 59, 59, 1_234_567)) |
| ); |
| assert_eq!(ymdhms_utc(2015, 2, 18, 23, 16, 9).to_rfc3339(), "2015-02-18T23:16:09+00:00"); |
| |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567 +05:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:059:60.234567+05:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+05:00PST").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+PST").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567PST").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+0500").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+05:00:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567:+05:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567+05:00 ").is_err()); |
| assert!(DateTime::parse_from_rfc3339(" 2015-02-18T23:59:60.234567+05:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015- 02-18T23:59:60.234567+05:00").is_err()); |
| assert!(DateTime::parse_from_rfc3339("2015-02-18T23:59:60.234567A+05:00").is_err()); |
| } |
| |
| #[test] |
| #[cfg(feature = "alloc")] |
| fn test_rfc3339_opts() { |
| use crate::SecondsFormat::*; |
| let pst = FixedOffset::east_opt(8 * 60 * 60).unwrap(); |
| let dt = pst |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2018, 1, 11) |
| .unwrap() |
| .and_hms_nano_opt(10, 5, 13, 84_660_000) |
| .unwrap(), |
| ) |
| .unwrap(); |
| assert_eq!(dt.to_rfc3339_opts(Secs, false), "2018-01-11T10:05:13+08:00"); |
| assert_eq!(dt.to_rfc3339_opts(Secs, true), "2018-01-11T10:05:13+08:00"); |
| assert_eq!(dt.to_rfc3339_opts(Millis, false), "2018-01-11T10:05:13.084+08:00"); |
| assert_eq!(dt.to_rfc3339_opts(Micros, false), "2018-01-11T10:05:13.084660+08:00"); |
| assert_eq!(dt.to_rfc3339_opts(Nanos, false), "2018-01-11T10:05:13.084660000+08:00"); |
| assert_eq!(dt.to_rfc3339_opts(AutoSi, false), "2018-01-11T10:05:13.084660+08:00"); |
| |
| let ut = dt.naive_utc().and_utc(); |
| assert_eq!(ut.to_rfc3339_opts(Secs, false), "2018-01-11T02:05:13+00:00"); |
| assert_eq!(ut.to_rfc3339_opts(Secs, true), "2018-01-11T02:05:13Z"); |
| assert_eq!(ut.to_rfc3339_opts(Millis, false), "2018-01-11T02:05:13.084+00:00"); |
| assert_eq!(ut.to_rfc3339_opts(Millis, true), "2018-01-11T02:05:13.084Z"); |
| assert_eq!(ut.to_rfc3339_opts(Micros, true), "2018-01-11T02:05:13.084660Z"); |
| assert_eq!(ut.to_rfc3339_opts(Nanos, true), "2018-01-11T02:05:13.084660000Z"); |
| assert_eq!(ut.to_rfc3339_opts(AutoSi, true), "2018-01-11T02:05:13.084660Z"); |
| } |
| |
| #[test] |
| #[should_panic] |
| #[cfg(feature = "alloc")] |
| fn test_rfc3339_opts_nonexhaustive() { |
| use crate::SecondsFormat; |
| let dt = Utc.with_ymd_and_hms(1999, 10, 9, 1, 2, 3).unwrap(); |
| let _ = dt.to_rfc3339_opts(SecondsFormat::__NonExhaustive, true); |
| } |
| |
| #[test] |
| fn test_datetime_from_str() { |
| assert_eq!( |
| "2015-02-18T23:16:9.15Z".parse::<DateTime<FixedOffset>>(), |
| Ok(FixedOffset::east_opt(0) |
| .unwrap() |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15Z".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15 UTC".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15UTC".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15Utc".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| |
| assert_eq!( |
| "2015-2-18T23:16:9.15Z".parse::<DateTime<FixedOffset>>(), |
| Ok(FixedOffset::east_opt(0) |
| .unwrap() |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-2-18T13:16:9.15-10:00".parse::<DateTime<FixedOffset>>(), |
| Ok(FixedOffset::west_opt(10 * 3600) |
| .unwrap() |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(13, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert!("2015-2-18T23:16:9.15".parse::<DateTime<FixedOffset>>().is_err()); |
| |
| assert_eq!( |
| "2015-2-18T23:16:9.15Z".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert_eq!( |
| "2015-2-18T13:16:9.15-10:00".parse::<DateTime<Utc>>(), |
| Ok(Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2015, 2, 18) |
| .unwrap() |
| .and_hms_milli_opt(23, 16, 9, 150) |
| .unwrap() |
| ) |
| .unwrap()) |
| ); |
| assert!("2015-2-18T23:16:9.15".parse::<DateTime<Utc>>().is_err()); |
| assert!("2015-02-18T23:16:9.15øøø".parse::<DateTime<Utc>>().is_err()); |
| |
| // no test for `DateTime<Local>`, we cannot verify that much. |
| } |
| |
| #[test] |
| fn test_parse_datetime_utc() { |
| // valid cases |
| let valid = [ |
| "2001-02-03T04:05:06Z", |
| "2001-02-03T04:05:06+0000", |
| "2001-02-03T04:05:06-00:00", |
| "2001-02-03T04:05:06-01:00", |
| "2012-12-12 12:12:12Z", |
| "2012-12-12t12:12:12Z", |
| "2012-12-12T12:12:12Z", |
| "2012 -12-12T12:12:12Z", |
| "2012 -12-12T12:12:12Z", |
| "2012- 12-12T12:12:12Z", |
| "2012- 12-12T12:12:12Z", |
| "2012-12-12T 12:12:12Z", |
| "2012-12-12T12 :12:12Z", |
| "2012-12-12T12 :12:12Z", |
| "2012-12-12T12: 12:12Z", |
| "2012-12-12T12: 12:12Z", |
| "2012-12-12T12 : 12:12Z", |
| "2012-12-12T12:12:12Z ", |
| " 2012-12-12T12:12:12Z", |
| "2015-02-18T23:16:09.153Z", |
| "2015-2-18T23:16:09.153Z", |
| "+2015-2-18T23:16:09.153Z", |
| "-77-02-18T23:16:09Z", |
| "+82701-05-6T15:9:60.898989898989Z", |
| ]; |
| for &s in &valid { |
| eprintln!("test_parse_datetime_utc valid {:?}", s); |
| let d = match s.parse::<DateTime<Utc>>() { |
| Ok(d) => d, |
| Err(e) => panic!("parsing `{}` has failed: {}", s, e), |
| }; |
| let s_ = format!("{:?}", d); |
| // `s` and `s_` may differ, but `s.parse()` and `s_.parse()` must be same |
| let d_ = match s_.parse::<DateTime<Utc>>() { |
| Ok(d) => d, |
| Err(e) => { |
| panic!("`{}` is parsed into `{:?}`, but reparsing that has failed: {}", s, d, e) |
| } |
| }; |
| assert!( |
| d == d_, |
| "`{}` is parsed into `{:?}`, but reparsed result `{:?}` does not match", |
| s, |
| d, |
| d_ |
| ); |
| } |
| |
| // some invalid cases |
| // since `ParseErrorKind` is private, all we can do is to check if there was an error |
| let invalid = [ |
| "", // empty |
| "Z", // missing data |
| "15Z", // missing data |
| "15:8:9Z", // missing date |
| "15-8-9Z", // missing time or date |
| "Fri, 09 Aug 2013 23:54:35 GMT", // valid datetime, wrong format |
| "Sat Jun 30 23:59:60 2012", // valid datetime, wrong format |
| "1441497364.649", // valid datetime, wrong format |
| "+1441497364.649", // valid datetime, wrong format |
| "+1441497364", // valid datetime, wrong format |
| "+1441497364Z", // valid datetime, wrong format |
| "2014/02/03 04:05:06Z", // valid datetime, wrong format |
| "2001-02-03T04:05:0600:00", // valid datetime, timezone too close |
| "2015-15-15T15:15:15Z", // invalid datetime |
| "2012-12-12T12:12:12x", // invalid timezone |
| "2012-123-12T12:12:12Z", // invalid month |
| "2012-12-77T12:12:12Z", // invalid day |
| "2012-12-12T26:12:12Z", // invalid hour |
| "2012-12-12T12:61:12Z", // invalid minute |
| "2012-12-12T12:12:62Z", // invalid second |
| "2012-12-12 T12:12:12Z", // space after date |
| "2012-12-12T12:12:12ZZ", // trailing literal 'Z' |
| "+802701-12-12T12:12:12Z", // invalid year (out of bounds) |
| "+ 2012-12-12T12:12:12Z", // invalid space before year |
| " +82701 - 05 - 6 T 15 : 9 : 60.898989898989 Z", // valid datetime, wrong format |
| ]; |
| for &s in &invalid { |
| eprintln!("test_parse_datetime_utc invalid {:?}", s); |
| assert!(s.parse::<DateTime<Utc>>().is_err()); |
| } |
| } |
| |
| #[test] |
| fn test_parse_from_str() { |
| let edt = FixedOffset::east_opt(570 * 60).unwrap(); |
| let edt0 = FixedOffset::east_opt(0).unwrap(); |
| let wdt = FixedOffset::west_opt(10 * 3600).unwrap(); |
| assert_eq!( |
| DateTime::parse_from_str("2014-5-7T12:34:56+09:30", "%Y-%m-%dT%H:%M:%S%z"), |
| Ok(ymdhms(&edt, 2014, 5, 7, 12, 34, 56)) |
| ); // ignore offset |
| assert!(DateTime::parse_from_str("20140507000000", "%Y%m%d%H%M%S").is_err()); // no offset |
| assert!(DateTime::parse_from_str("Fri, 09 Aug 2013 23:54:35 GMT", "%a, %d %b %Y %H:%M:%S GMT") |
| .is_err()); |
| assert_eq!( |
| DateTime::parse_from_str("0", "%s").unwrap(), |
| NaiveDateTime::from_timestamp_opt(0, 0).unwrap().and_utc().fixed_offset() |
| ); |
| |
| assert_eq!( |
| "2015-02-18T23:16:9.15Z".parse::<DateTime<FixedOffset>>(), |
| Ok(ymdhms_milli(&edt0, 2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15Z".parse::<DateTime<Utc>>(), |
| Ok(ymdhms_milli_utc(2015, 2, 18, 23, 16, 9, 150)), |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15 UTC".parse::<DateTime<Utc>>(), |
| Ok(ymdhms_milli_utc(2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| assert_eq!( |
| "2015-02-18T23:16:9.15UTC".parse::<DateTime<Utc>>(), |
| Ok(ymdhms_milli_utc(2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| |
| assert_eq!( |
| "2015-2-18T23:16:9.15Z".parse::<DateTime<FixedOffset>>(), |
| Ok(ymdhms_milli(&edt0, 2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| assert_eq!( |
| "2015-2-18T13:16:9.15-10:00".parse::<DateTime<FixedOffset>>(), |
| Ok(ymdhms_milli(&wdt, 2015, 2, 18, 13, 16, 9, 150)) |
| ); |
| assert!("2015-2-18T23:16:9.15".parse::<DateTime<FixedOffset>>().is_err()); |
| |
| assert_eq!( |
| "2015-2-18T23:16:9.15Z".parse::<DateTime<Utc>>(), |
| Ok(ymdhms_milli_utc(2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| assert_eq!( |
| "2015-2-18T13:16:9.15-10:00".parse::<DateTime<Utc>>(), |
| Ok(ymdhms_milli_utc(2015, 2, 18, 23, 16, 9, 150)) |
| ); |
| assert!("2015-2-18T23:16:9.15".parse::<DateTime<Utc>>().is_err()); |
| |
| // no test for `DateTime<Local>`, we cannot verify that much. |
| } |
| |
| #[test] |
| fn test_datetime_parse_from_str() { |
| let dt = ymdhms(&FixedOffset::east_opt(-9 * 60 * 60).unwrap(), 2013, 8, 9, 23, 54, 35); |
| let parse = DateTime::parse_from_str; |
| |
| // timezone variations |
| |
| // |
| // %Z |
| // |
| // wrong timezone format |
| assert!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %Z").is_err()); |
| // bad timezone data? |
| assert!(parse("Aug 09 2013 23:54:35 PST", "%b %d %Y %H:%M:%S %Z").is_err()); |
| // bad timezone data |
| assert!(parse("Aug 09 2013 23:54:35 XXXXX", "%b %d %Y %H:%M:%S %Z").is_err()); |
| |
| // |
| // %z |
| // |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 00", "%b %d %Y %H:%M:%S %z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 : 00", "%b %d %Y %H:%M:%S %z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 --0900", "%b %d %Y %H:%M:%S -%z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 +-0900", "%b %d %Y %H:%M:%S +%z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00 ", "%b %d %Y %H:%M:%S %z "), Ok(dt)); |
| // trailing newline after timezone |
| assert!(parse("Aug 09 2013 23:54:35 -09:00\n", "%b %d %Y %H:%M:%S %z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00\n", "%b %d %Y %H:%M:%S %z "), Ok(dt)); |
| // trailing colon |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:", "%b %d %Y %H:%M:%S %z").is_err()); |
| // trailing colon with space |
| assert!(parse("Aug 09 2013 23:54:35 -09:00: ", "%b %d %Y %H:%M:%S %z ").is_err()); |
| // trailing colon, mismatch space |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:", "%b %d %Y %H:%M:%S %z ").is_err()); |
| // wrong timezone data |
| assert!(parse("Aug 09 2013 23:54:35 -09", "%b %d %Y %H:%M:%S %z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09::00", "%b %d %Y %H:%M:%S %z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900::", "%b %d %Y %H:%M:%S %z::"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00:00", "%b %d %Y %H:%M:%S %z:00"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00:00 ", "%b %d %Y %H:%M:%S %z:00 "), Ok(dt)); |
| |
| // |
| // %:z |
| // |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 00", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 : 00", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 : 00:", "%b %d %Y %H:%M:%S %:z:"), Ok(dt)); |
| // wrong timezone data |
| assert!(parse("Aug 09 2013 23:54:35 -09", "%b %d %Y %H:%M:%S %:z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09::00", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| // timezone data hs too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:", "%b %d %Y %H:%M:%S %:z").is_err()); |
| // timezone data hs too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -09:00::", "%b %d %Y %H:%M:%S %:z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00::", "%b %d %Y %H:%M:%S %:z::"), Ok(dt)); |
| |
| // |
| // %::z |
| // |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %::z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %::z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09 : 00", "%b %d %Y %H:%M:%S %::z"), Ok(dt)); |
| // mismatching colon expectations |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:00", "%b %d %Y %H:%M:%S %::z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09::00", "%b %d %Y %H:%M:%S %::z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09::00", "%b %d %Y %H:%M:%S %:z"), Ok(dt)); |
| // wrong timezone data |
| assert!(parse("Aug 09 2013 23:54:35 -09", "%b %d %Y %H:%M:%S %::z").is_err()); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09001234", "%b %d %Y %H:%M:%S %::z1234"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:001234", "%b %d %Y %H:%M:%S %::z1234"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900 ", "%b %d %Y %H:%M:%S %::z "), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900\t\n", "%b %d %Y %H:%M:%S %::z\t\n"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900:", "%b %d %Y %H:%M:%S %::z:"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 :-0900:0", "%b %d %Y %H:%M:%S :%::z:0"), Ok(dt)); |
| // mismatching colons and spaces |
| assert!(parse("Aug 09 2013 23:54:35 :-0900: ", "%b %d %Y %H:%M:%S :%::z::").is_err()); |
| // mismatching colons expectations |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:00", "%b %d %Y %H:%M:%S %::z").is_err()); |
| assert_eq!(parse("Aug 09 2013 -0900: 23:54:35", "%b %d %Y %::z: %H:%M:%S"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 :-0900:0 23:54:35", "%b %d %Y :%::z:0 %H:%M:%S"), Ok(dt)); |
| // mismatching colons expectations mid-string |
| assert!(parse("Aug 09 2013 :-0900: 23:54:35", "%b %d %Y :%::z %H:%M:%S").is_err()); |
| // mismatching colons expectations, before end |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:00 ", "%b %d %Y %H:%M:%S %::z ").is_err()); |
| |
| // |
| // %:::z |
| // |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %:::z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %:::z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900 ", "%b %d %Y %H:%M:%S %:::z "), Ok(dt)); |
| // wrong timezone data |
| assert!(parse("Aug 09 2013 23:54:35 -09", "%b %d %Y %H:%M:%S %:::z").is_err()); |
| |
| // |
| // %::::z |
| // |
| // too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %::::z").is_err()); |
| // too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %::::z").is_err()); |
| // too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:", "%b %d %Y %H:%M:%S %::::z").is_err()); |
| // too many colons |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:00", "%b %d %Y %H:%M:%S %::::z").is_err()); |
| |
| // |
| // %#z |
| // |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00", "%b %d %Y %H:%M:%S %#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:00 ", "%b %d %Y %H:%M:%S %#z "), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900 ", "%b %d %Y %H:%M:%S %#z "), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09", "%b %d %Y %H:%M:%S %#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -0900", "%b %d %Y %H:%M:%S %#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09:", "%b %d %Y %H:%M:%S %#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35 -09: ", "%b %d %Y %H:%M:%S %#z "), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35+-09", "%b %d %Y %H:%M:%S+%#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 23:54:35--09", "%b %d %Y %H:%M:%S-%#z"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 -09:00 23:54:35", "%b %d %Y %#z%H:%M:%S"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 -0900 23:54:35", "%b %d %Y %#z%H:%M:%S"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 -090023:54:35", "%b %d %Y %#z%H:%M:%S"), Ok(dt)); |
| assert_eq!(parse("Aug 09 2013 -09:0023:54:35", "%b %d %Y %#z%H:%M:%S"), Ok(dt)); |
| // timezone with partial minutes adjacent hours |
| assert_ne!(parse("Aug 09 2013 -09023:54:35", "%b %d %Y %#z%H:%M:%S"), Ok(dt)); |
| // bad timezone data |
| assert!(parse("Aug 09 2013 23:54:35 -09:00:00", "%b %d %Y %H:%M:%S %#z").is_err()); |
| // bad timezone data (partial minutes) |
| assert!(parse("Aug 09 2013 23:54:35 -090", "%b %d %Y %H:%M:%S %#z").is_err()); |
| // bad timezone data (partial minutes) with trailing space |
| assert!(parse("Aug 09 2013 23:54:35 -090 ", "%b %d %Y %H:%M:%S %#z ").is_err()); |
| // bad timezone data (partial minutes) mid-string |
| assert!(parse("Aug 09 2013 -090 23:54:35", "%b %d %Y %#z %H:%M:%S").is_err()); |
| // bad timezone data |
| assert!(parse("Aug 09 2013 -09:00:00 23:54:35", "%b %d %Y %#z %H:%M:%S").is_err()); |
| // timezone data ambiguous with hours |
| assert!(parse("Aug 09 2013 -09:00:23:54:35", "%b %d %Y %#z%H:%M:%S").is_err()); |
| } |
| |
| #[test] |
| fn test_to_string_round_trip() { |
| let dt = Utc.with_ymd_and_hms(2000, 1, 1, 0, 0, 0).unwrap(); |
| let _dt: DateTime<Utc> = dt.to_string().parse().unwrap(); |
| |
| let ndt_fixed = dt.with_timezone(&FixedOffset::east_opt(3600).unwrap()); |
| let _dt: DateTime<FixedOffset> = ndt_fixed.to_string().parse().unwrap(); |
| |
| let ndt_fixed = dt.with_timezone(&FixedOffset::east_opt(0).unwrap()); |
| let _dt: DateTime<FixedOffset> = ndt_fixed.to_string().parse().unwrap(); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_to_string_round_trip_with_local() { |
| let ndt = Local::now(); |
| let _dt: DateTime<FixedOffset> = ndt.to_string().parse().unwrap(); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_format_with_local() { |
| // if we are not around the year boundary, local and UTC date should have the same year |
| let dt = Local::now().with_month(5).unwrap(); |
| assert_eq!(dt.format("%Y").to_string(), dt.with_timezone(&Utc).format("%Y").to_string()); |
| } |
| |
| #[test] |
| fn test_datetime_is_send_and_copy() { |
| fn _assert_send_copy<T: Send + Copy>() {} |
| // UTC is known to be `Send + Copy`. |
| _assert_send_copy::<DateTime<Utc>>(); |
| } |
| |
| #[test] |
| fn test_subsecond_part() { |
| let datetime = Utc |
| .from_local_datetime( |
| &NaiveDate::from_ymd_opt(2014, 7, 8) |
| .unwrap() |
| .and_hms_nano_opt(9, 10, 11, 1234567) |
| .unwrap(), |
| ) |
| .unwrap(); |
| |
| assert_eq!(1, datetime.timestamp_subsec_millis()); |
| assert_eq!(1234, datetime.timestamp_subsec_micros()); |
| assert_eq!(1234567, datetime.timestamp_subsec_nanos()); |
| } |
| |
| // Some targets, such as `wasm32-wasi`, have a problematic definition of `SystemTime`, such as an |
| // `i32` (year 2035 problem), or an `u64` (no values before `UNIX-EPOCH`). |
| // See https://github.com/rust-lang/rust/issues/44394. |
| #[test] |
| #[cfg(all(feature = "std", not(all(target_arch = "wasm32", target_os = "wasi"))))] |
| fn test_from_system_time() { |
| use std::time::{Duration, SystemTime, UNIX_EPOCH}; |
| |
| let nanos = 999_999_000; |
| |
| let epoch = Utc.with_ymd_and_hms(1970, 1, 1, 0, 0, 0).unwrap(); |
| |
| // SystemTime -> DateTime<Utc> |
| assert_eq!(DateTime::<Utc>::from(UNIX_EPOCH), epoch); |
| assert_eq!( |
| DateTime::<Utc>::from(UNIX_EPOCH + Duration::new(999_999_999, nanos)), |
| Utc.from_local_datetime( |
| &NaiveDate::from_ymd_opt(2001, 9, 9) |
| .unwrap() |
| .and_hms_nano_opt(1, 46, 39, nanos) |
| .unwrap() |
| ) |
| .unwrap() |
| ); |
| assert_eq!( |
| DateTime::<Utc>::from(UNIX_EPOCH - Duration::new(999_999_999, nanos)), |
| Utc.from_local_datetime( |
| &NaiveDate::from_ymd_opt(1938, 4, 24) |
| .unwrap() |
| .and_hms_nano_opt(22, 13, 20, 1_000) |
| .unwrap() |
| ) |
| .unwrap() |
| ); |
| |
| // DateTime<Utc> -> SystemTime |
| assert_eq!(SystemTime::from(epoch), UNIX_EPOCH); |
| assert_eq!( |
| SystemTime::from( |
| Utc.from_local_datetime( |
| &NaiveDate::from_ymd_opt(2001, 9, 9) |
| .unwrap() |
| .and_hms_nano_opt(1, 46, 39, nanos) |
| .unwrap() |
| ) |
| .unwrap() |
| ), |
| UNIX_EPOCH + Duration::new(999_999_999, nanos) |
| ); |
| assert_eq!( |
| SystemTime::from( |
| Utc.from_local_datetime( |
| &NaiveDate::from_ymd_opt(1938, 4, 24) |
| .unwrap() |
| .and_hms_nano_opt(22, 13, 20, 1_000) |
| .unwrap() |
| ) |
| .unwrap() |
| ), |
| UNIX_EPOCH - Duration::new(999_999_999, nanos) |
| ); |
| |
| // DateTime<any tz> -> SystemTime (via `with_timezone`) |
| #[cfg(feature = "clock")] |
| { |
| assert_eq!(SystemTime::from(epoch.with_timezone(&Local)), UNIX_EPOCH); |
| } |
| assert_eq!( |
| SystemTime::from(epoch.with_timezone(&FixedOffset::east_opt(32400).unwrap())), |
| UNIX_EPOCH |
| ); |
| assert_eq!( |
| SystemTime::from(epoch.with_timezone(&FixedOffset::west_opt(28800).unwrap())), |
| UNIX_EPOCH |
| ); |
| } |
| |
| #[test] |
| #[allow(deprecated)] |
| fn test_datetime_from_local() { |
| // 2000-01-12T02:00:00Z |
| let naivedatetime_utc = |
| NaiveDate::from_ymd_opt(2000, 1, 12).unwrap().and_hms_opt(2, 0, 0).unwrap(); |
| let datetime_utc = DateTime::<Utc>::from_utc(naivedatetime_utc, Utc); |
| |
| // 2000-01-12T10:00:00+8:00:00 |
| let timezone_east = FixedOffset::east_opt(8 * 60 * 60).unwrap(); |
| let naivedatetime_east = |
| NaiveDate::from_ymd_opt(2000, 1, 12).unwrap().and_hms_opt(10, 0, 0).unwrap(); |
| let datetime_east = DateTime::<FixedOffset>::from_local(naivedatetime_east, timezone_east); |
| |
| // 2000-01-11T19:00:00-7:00:00 |
| let timezone_west = FixedOffset::west_opt(7 * 60 * 60).unwrap(); |
| let naivedatetime_west = |
| NaiveDate::from_ymd_opt(2000, 1, 11).unwrap().and_hms_opt(19, 0, 0).unwrap(); |
| let datetime_west = DateTime::<FixedOffset>::from_local(naivedatetime_west, timezone_west); |
| |
| assert_eq!(datetime_east, datetime_utc.with_timezone(&timezone_east)); |
| assert_eq!(datetime_west, datetime_utc.with_timezone(&timezone_west)); |
| } |
| |
| #[test] |
| fn test_datetime_from_timestamp_millis() { |
| // 2000-01-12T01:02:03:004Z |
| let naive_dt = |
| NaiveDate::from_ymd_opt(2000, 1, 12).unwrap().and_hms_milli_opt(1, 2, 3, 4).unwrap(); |
| let datetime_utc = DateTime::<Utc>::from_naive_utc_and_offset(naive_dt, Utc); |
| assert_eq!( |
| datetime_utc, |
| DateTime::<Utc>::from_timestamp_millis(datetime_utc.timestamp_millis()).unwrap() |
| ); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_before_windows_api_limits() { |
| // dt corresponds to `FILETIME = 147221225472` from issue 651. |
| // (https://github.com/chronotope/chrono/issues/651) |
| // This used to fail on Windows for timezones with an offset of -5:00 or greater. |
| // The API limits years to 1601..=30827. |
| let dt = NaiveDate::from_ymd_opt(1601, 1, 1).unwrap().and_hms_milli_opt(4, 5, 22, 122).unwrap(); |
| let local_dt = Local.from_utc_datetime(&dt); |
| dbg!(local_dt); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_years_elapsed() { |
| const WEEKS_PER_YEAR: f32 = 52.1775; |
| |
| // This is always at least one year because 1 year = 52.1775 weeks. |
| let one_year_ago = |
| Utc::now().date_naive() - TimeDelta::weeks((WEEKS_PER_YEAR * 1.5).ceil() as i64); |
| // A bit more than 2 years. |
| let two_year_ago = |
| Utc::now().date_naive() - TimeDelta::weeks((WEEKS_PER_YEAR * 2.5).ceil() as i64); |
| |
| assert_eq!(Utc::now().date_naive().years_since(one_year_ago), Some(1)); |
| assert_eq!(Utc::now().date_naive().years_since(two_year_ago), Some(2)); |
| |
| // If the given DateTime is later than now, the function will always return 0. |
| let future = Utc::now().date_naive() + TimeDelta::weeks(12); |
| assert_eq!(Utc::now().date_naive().years_since(future), None); |
| } |
| |
| #[test] |
| fn test_datetime_add_assign() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2000, 1, 1).unwrap().and_hms_opt(0, 0, 0).unwrap(); |
| let datetime = naivedatetime.and_utc(); |
| let mut datetime_add = datetime; |
| |
| datetime_add += TimeDelta::seconds(60); |
| assert_eq!(datetime_add, datetime + TimeDelta::seconds(60)); |
| |
| let timezone = FixedOffset::east_opt(60 * 60).unwrap(); |
| let datetime = datetime.with_timezone(&timezone); |
| let datetime_add = datetime_add.with_timezone(&timezone); |
| |
| assert_eq!(datetime_add, datetime + TimeDelta::seconds(60)); |
| |
| let timezone = FixedOffset::west_opt(2 * 60 * 60).unwrap(); |
| let datetime = datetime.with_timezone(&timezone); |
| let datetime_add = datetime_add.with_timezone(&timezone); |
| |
| assert_eq!(datetime_add, datetime + TimeDelta::seconds(60)); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_add_assign_local() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2022, 1, 1).unwrap().and_hms_opt(0, 0, 0).unwrap(); |
| |
| let datetime = Local.from_utc_datetime(&naivedatetime); |
| let mut datetime_add = Local.from_utc_datetime(&naivedatetime); |
| |
| // ensure we cross a DST transition |
| for i in 1..=365 { |
| datetime_add += TimeDelta::days(1); |
| assert_eq!(datetime_add, datetime + TimeDelta::days(i)) |
| } |
| } |
| |
| #[test] |
| fn test_datetime_sub_assign() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2000, 1, 1).unwrap().and_hms_opt(12, 0, 0).unwrap(); |
| let datetime = naivedatetime.and_utc(); |
| let mut datetime_sub = datetime; |
| |
| datetime_sub -= TimeDelta::minutes(90); |
| assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90)); |
| |
| let timezone = FixedOffset::east_opt(60 * 60).unwrap(); |
| let datetime = datetime.with_timezone(&timezone); |
| let datetime_sub = datetime_sub.with_timezone(&timezone); |
| |
| assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90)); |
| |
| let timezone = FixedOffset::west_opt(2 * 60 * 60).unwrap(); |
| let datetime = datetime.with_timezone(&timezone); |
| let datetime_sub = datetime_sub.with_timezone(&timezone); |
| |
| assert_eq!(datetime_sub, datetime - TimeDelta::minutes(90)); |
| } |
| |
| #[test] |
| fn test_min_max_getters() { |
| let offset_min = FixedOffset::west_opt(2 * 60 * 60).unwrap(); |
| let beyond_min = offset_min.from_utc_datetime(&NaiveDateTime::MIN); |
| let offset_max = FixedOffset::east_opt(2 * 60 * 60).unwrap(); |
| let beyond_max = offset_max.from_utc_datetime(&NaiveDateTime::MAX); |
| |
| assert_eq!(format!("{:?}", beyond_min), "-262144-12-31T22:00:00-02:00"); |
| // RFC 2822 doesn't support years with more than 4 digits. |
| // assert_eq!(beyond_min.to_rfc2822(), ""); |
| #[cfg(feature = "alloc")] |
| assert_eq!(beyond_min.to_rfc3339(), "-262144-12-31T22:00:00-02:00"); |
| #[cfg(feature = "alloc")] |
| assert_eq!( |
| beyond_min.format("%Y-%m-%dT%H:%M:%S%:z").to_string(), |
| "-262144-12-31T22:00:00-02:00" |
| ); |
| assert_eq!(beyond_min.year(), -262144); |
| assert_eq!(beyond_min.month(), 12); |
| assert_eq!(beyond_min.month0(), 11); |
| assert_eq!(beyond_min.day(), 31); |
| assert_eq!(beyond_min.day0(), 30); |
| assert_eq!(beyond_min.ordinal(), 366); |
| assert_eq!(beyond_min.ordinal0(), 365); |
| assert_eq!(beyond_min.weekday(), Weekday::Wed); |
| assert_eq!(beyond_min.iso_week().year(), -262143); |
| assert_eq!(beyond_min.iso_week().week(), 1); |
| assert_eq!(beyond_min.hour(), 22); |
| assert_eq!(beyond_min.minute(), 0); |
| assert_eq!(beyond_min.second(), 0); |
| assert_eq!(beyond_min.nanosecond(), 0); |
| |
| assert_eq!(format!("{:?}", beyond_max), "+262143-01-01T01:59:59.999999999+02:00"); |
| // RFC 2822 doesn't support years with more than 4 digits. |
| // assert_eq!(beyond_max.to_rfc2822(), ""); |
| #[cfg(feature = "alloc")] |
| assert_eq!(beyond_max.to_rfc3339(), "+262143-01-01T01:59:59.999999999+02:00"); |
| #[cfg(feature = "alloc")] |
| assert_eq!( |
| beyond_max.format("%Y-%m-%dT%H:%M:%S%.9f%:z").to_string(), |
| "+262143-01-01T01:59:59.999999999+02:00" |
| ); |
| assert_eq!(beyond_max.year(), 262143); |
| assert_eq!(beyond_max.month(), 1); |
| assert_eq!(beyond_max.month0(), 0); |
| assert_eq!(beyond_max.day(), 1); |
| assert_eq!(beyond_max.day0(), 0); |
| assert_eq!(beyond_max.ordinal(), 1); |
| assert_eq!(beyond_max.ordinal0(), 0); |
| assert_eq!(beyond_max.weekday(), Weekday::Tue); |
| assert_eq!(beyond_max.iso_week().year(), 262143); |
| assert_eq!(beyond_max.iso_week().week(), 1); |
| assert_eq!(beyond_max.hour(), 1); |
| assert_eq!(beyond_max.minute(), 59); |
| assert_eq!(beyond_max.second(), 59); |
| assert_eq!(beyond_max.nanosecond(), 999_999_999); |
| } |
| |
| #[test] |
| fn test_min_max_setters() { |
| let offset_min = FixedOffset::west_opt(2 * 60 * 60).unwrap(); |
| let beyond_min = offset_min.from_utc_datetime(&NaiveDateTime::MIN); |
| let offset_max = FixedOffset::east_opt(2 * 60 * 60).unwrap(); |
| let beyond_max = offset_max.from_utc_datetime(&NaiveDateTime::MAX); |
| |
| assert_eq!(beyond_min.with_year(2020).unwrap().year(), 2020); |
| assert_eq!(beyond_min.with_month(beyond_min.month()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_month(3), None); |
| assert_eq!(beyond_min.with_month0(beyond_min.month0()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_month0(3), None); |
| assert_eq!(beyond_min.with_day(beyond_min.day()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_day(15), None); |
| assert_eq!(beyond_min.with_day0(beyond_min.day0()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_day0(15), None); |
| assert_eq!(beyond_min.with_ordinal(beyond_min.ordinal()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_ordinal(200), None); |
| assert_eq!(beyond_min.with_ordinal0(beyond_min.ordinal0()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_ordinal0(200), None); |
| assert_eq!(beyond_min.with_hour(beyond_min.hour()), Some(beyond_min)); |
| assert_eq!(beyond_min.with_hour(23), beyond_min.checked_add_signed(TimeDelta::hours(1))); |
| assert_eq!(beyond_min.with_hour(5), None); |
| assert_eq!(beyond_min.with_minute(0), Some(beyond_min)); |
| assert_eq!(beyond_min.with_second(0), Some(beyond_min)); |
| assert_eq!(beyond_min.with_nanosecond(0), Some(beyond_min)); |
| |
| assert_eq!(beyond_max.with_year(2020).unwrap().year(), 2020); |
| assert_eq!(beyond_max.with_month(beyond_max.month()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_month(3), None); |
| assert_eq!(beyond_max.with_month0(beyond_max.month0()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_month0(3), None); |
| assert_eq!(beyond_max.with_day(beyond_max.day()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_day(15), None); |
| assert_eq!(beyond_max.with_day0(beyond_max.day0()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_day0(15), None); |
| assert_eq!(beyond_max.with_ordinal(beyond_max.ordinal()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_ordinal(200), None); |
| assert_eq!(beyond_max.with_ordinal0(beyond_max.ordinal0()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_ordinal0(200), None); |
| assert_eq!(beyond_max.with_hour(beyond_max.hour()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_hour(0), beyond_max.checked_sub_signed(TimeDelta::hours(1))); |
| assert_eq!(beyond_max.with_hour(5), None); |
| assert_eq!(beyond_max.with_minute(beyond_max.minute()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_second(beyond_max.second()), Some(beyond_max)); |
| assert_eq!(beyond_max.with_nanosecond(beyond_max.nanosecond()), Some(beyond_max)); |
| } |
| |
| #[test] |
| #[should_panic] |
| fn test_local_beyond_min_datetime() { |
| let min = FixedOffset::west_opt(2 * 60 * 60).unwrap().from_utc_datetime(&NaiveDateTime::MIN); |
| let _ = min.naive_local(); |
| } |
| |
| #[test] |
| #[should_panic] |
| fn test_local_beyond_max_datetime() { |
| let max = FixedOffset::east_opt(2 * 60 * 60).unwrap().from_utc_datetime(&NaiveDateTime::MAX); |
| let _ = max.naive_local(); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_sub_assign_local() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2022, 1, 1).unwrap().and_hms_opt(0, 0, 0).unwrap(); |
| |
| let datetime = Local.from_utc_datetime(&naivedatetime); |
| let mut datetime_sub = Local.from_utc_datetime(&naivedatetime); |
| |
| // ensure we cross a DST transition |
| for i in 1..=365 { |
| datetime_sub -= TimeDelta::days(1); |
| assert_eq!(datetime_sub, datetime - TimeDelta::days(i)) |
| } |
| } |
| |
| #[test] |
| fn test_core_duration_ops() { |
| use core::time::Duration; |
| |
| let mut utc_dt = Utc.with_ymd_and_hms(2023, 8, 29, 11, 34, 12).unwrap(); |
| let same = utc_dt + Duration::ZERO; |
| assert_eq!(utc_dt, same); |
| |
| utc_dt += Duration::new(3600, 0); |
| assert_eq!(utc_dt, Utc.with_ymd_and_hms(2023, 8, 29, 12, 34, 12).unwrap()); |
| } |
| |
| #[test] |
| #[should_panic] |
| fn test_core_duration_max() { |
| use core::time::Duration; |
| |
| let mut utc_dt = Utc.with_ymd_and_hms(2023, 8, 29, 11, 34, 12).unwrap(); |
| utc_dt += Duration::MAX; |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| fn test_datetime_local_from_preserves_offset() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2023, 1, 1).unwrap().and_hms_opt(0, 0, 0).unwrap(); |
| |
| let datetime = Local.from_utc_datetime(&naivedatetime); |
| let offset = datetime.offset().fix(); |
| |
| let datetime_fixed: DateTime<FixedOffset> = datetime.into(); |
| assert_eq!(&offset, datetime_fixed.offset()); |
| assert_eq!(datetime.fixed_offset(), datetime_fixed); |
| } |
| |
| #[test] |
| fn test_datetime_fixed_offset() { |
| let naivedatetime = NaiveDate::from_ymd_opt(2023, 1, 1).unwrap().and_hms_opt(0, 0, 0).unwrap(); |
| |
| let datetime = Utc.from_utc_datetime(&naivedatetime); |
| let fixed_utc = FixedOffset::east_opt(0).unwrap(); |
| assert_eq!(datetime.fixed_offset(), fixed_utc.from_local_datetime(&naivedatetime).unwrap()); |
| |
| let fixed_offset = FixedOffset::east_opt(3600).unwrap(); |
| let datetime_fixed = fixed_offset.from_local_datetime(&naivedatetime).unwrap(); |
| assert_eq!(datetime_fixed.fixed_offset(), datetime_fixed); |
| } |
| |
| #[test] |
| fn test_datetime_to_utc() { |
| let dt = |
| FixedOffset::east_opt(3600).unwrap().with_ymd_and_hms(2020, 2, 22, 23, 24, 25).unwrap(); |
| let dt_utc: DateTime<Utc> = dt.to_utc(); |
| assert_eq!(dt, dt_utc); |
| } |
| |
| #[test] |
| fn test_add_sub_months() { |
| let utc_dt = Utc.with_ymd_and_hms(2018, 9, 5, 23, 58, 0).unwrap(); |
| assert_eq!(utc_dt + Months::new(15), Utc.with_ymd_and_hms(2019, 12, 5, 23, 58, 0).unwrap()); |
| |
| let utc_dt = Utc.with_ymd_and_hms(2020, 1, 31, 23, 58, 0).unwrap(); |
| assert_eq!(utc_dt + Months::new(1), Utc.with_ymd_and_hms(2020, 2, 29, 23, 58, 0).unwrap()); |
| assert_eq!(utc_dt + Months::new(2), Utc.with_ymd_and_hms(2020, 3, 31, 23, 58, 0).unwrap()); |
| |
| let utc_dt = Utc.with_ymd_and_hms(2018, 9, 5, 23, 58, 0).unwrap(); |
| assert_eq!(utc_dt - Months::new(15), Utc.with_ymd_and_hms(2017, 6, 5, 23, 58, 0).unwrap()); |
| |
| let utc_dt = Utc.with_ymd_and_hms(2020, 3, 31, 23, 58, 0).unwrap(); |
| assert_eq!(utc_dt - Months::new(1), Utc.with_ymd_and_hms(2020, 2, 29, 23, 58, 0).unwrap()); |
| assert_eq!(utc_dt - Months::new(2), Utc.with_ymd_and_hms(2020, 1, 31, 23, 58, 0).unwrap()); |
| } |
| |
| #[test] |
| fn test_auto_conversion() { |
| let utc_dt = Utc.with_ymd_and_hms(2018, 9, 5, 23, 58, 0).unwrap(); |
| let cdt_dt = FixedOffset::west_opt(5 * 60 * 60) |
| .unwrap() |
| .with_ymd_and_hms(2018, 9, 5, 18, 58, 0) |
| .unwrap(); |
| let utc_dt2: DateTime<Utc> = cdt_dt.into(); |
| assert_eq!(utc_dt, utc_dt2); |
| } |
| |
| #[test] |
| #[cfg(feature = "clock")] |
| #[allow(deprecated)] |
| fn test_test_deprecated_from_offset() { |
| let now = Local::now(); |
| let naive = now.naive_local(); |
| let utc = now.naive_utc(); |
| let offset: FixedOffset = *now.offset(); |
| |
| assert_eq!(DateTime::<Local>::from_local(naive, offset), now); |
| assert_eq!(DateTime::<Local>::from_utc(utc, offset), now); |
| } |
| |
| #[test] |
| #[cfg(all(feature = "unstable-locales", feature = "alloc"))] |
| fn locale_decimal_point() { |
| use crate::Locale::{ar_SY, nl_NL}; |
| let dt = |
| Utc.with_ymd_and_hms(2018, 9, 5, 18, 58, 0).unwrap().with_nanosecond(123456780).unwrap(); |
| |
| assert_eq!(dt.format_localized("%T%.f", nl_NL).to_string(), "18:58:00,123456780"); |
| assert_eq!(dt.format_localized("%T%.3f", nl_NL).to_string(), "18:58:00,123"); |
| assert_eq!(dt.format_localized("%T%.6f", nl_NL).to_string(), "18:58:00,123456"); |
| assert_eq!(dt.format_localized("%T%.9f", nl_NL).to_string(), "18:58:00,123456780"); |
| |
| assert_eq!(dt.format_localized("%T%.f", ar_SY).to_string(), "18:58:00.123456780"); |
| assert_eq!(dt.format_localized("%T%.3f", ar_SY).to_string(), "18:58:00.123"); |
| assert_eq!(dt.format_localized("%T%.6f", ar_SY).to_string(), "18:58:00.123456"); |
| assert_eq!(dt.format_localized("%T%.9f", ar_SY).to_string(), "18:58:00.123456780"); |
| } |
| |
| /// This is an extended test for <https://github.com/chronotope/chrono/issues/1289>. |
| #[test] |
| fn nano_roundrip() { |
| const BILLION: i64 = 1_000_000_000; |
| |
| for nanos in [ |
| i64::MIN, |
| i64::MIN + 1, |
| i64::MIN + 2, |
| i64::MIN + BILLION - 1, |
| i64::MIN + BILLION, |
| i64::MIN + BILLION + 1, |
| -BILLION - 1, |
| -BILLION, |
| -BILLION + 1, |
| 0, |
| BILLION - 1, |
| BILLION, |
| BILLION + 1, |
| i64::MAX - BILLION - 1, |
| i64::MAX - BILLION, |
| i64::MAX - BILLION + 1, |
| i64::MAX - 2, |
| i64::MAX - 1, |
| i64::MAX, |
| ] { |
| println!("nanos: {}", nanos); |
| let dt = Utc.timestamp_nanos(nanos); |
| let nanos2 = dt.timestamp_nanos_opt().expect("value roundtrips"); |
| assert_eq!(nanos, nanos2); |
| } |
| } |
