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Split naive::time module into separate files

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This commit is contained in:
Dirkjan Ochtman 2022-03-21 22:03:47 -07:00
parent 0cd8fa8653
commit aab30ef19d
4 changed files with 377 additions and 389 deletions
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398
src/naive/time.rs → src/naive/time/mod.rs
View File

@ -16,6 +16,15 @@ use crate::format::{Fixed, Item, Numeric, Pad};
use crate::oldtime::Duration as OldDuration;
use crate::Timelike;
#[cfg(feature = "rustc-serialize")]
mod rustc_serialize;
#[cfg(feature = "serde")]
mod serde;
#[cfg(test)]
mod tests;
pub(super) const MIN_TIME: NaiveTime = NaiveTime { secs: 0, frac: 0 };
pub(super) const MAX_TIME: NaiveTime =
NaiveTime { secs: 23 * 3600 + 59 * 60 + 59, frac: 999_999_999 };
@ -1424,392 +1433,3 @@ where
assert!(from_str(r#"{"secs":0,"frac":0}"#).is_err());
assert!(from_str(r#"null"#).is_err());
}
#[cfg(feature = "rustc-serialize")]
mod rustc_serialize {
use super::NaiveTime;
use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
impl Encodable for NaiveTime {
fn encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
format!("{:?}", self).encode(s)
}
}
impl Decodable for NaiveTime {
fn decode<D: Decoder>(d: &mut D) -> Result<NaiveTime, D::Error> {
d.read_str()?.parse().map_err(|_| d.error("invalid time"))
}
}
#[cfg(test)]
use rustc_serialize::json;
#[test]
fn test_encodable() {
super::test_encodable_json(json::encode);
}
#[test]
fn test_decodable() {
super::test_decodable_json(json::decode);
}
}
#[cfg(feature = "serde")]
mod serde {
use super::NaiveTime;
use core::fmt;
use serde::{de, ser};
// TODO not very optimized for space (binary formats would want something better)
// TODO round-trip for general leap seconds (not just those with second = 60)
impl ser::Serialize for NaiveTime {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
serializer.collect_str(&self)
}
}
struct NaiveTimeVisitor;
impl<'de> de::Visitor<'de> for NaiveTimeVisitor {
type Value = NaiveTime;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a formatted time string")
}
fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
value.parse().map_err(E::custom)
}
}
impl<'de> de::Deserialize<'de> for NaiveTime {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
deserializer.deserialize_str(NaiveTimeVisitor)
}
}
#[test]
fn test_serde_serialize() {
super::test_encodable_json(serde_json::to_string);
}
#[test]
fn test_serde_deserialize() {
super::test_decodable_json(|input| serde_json::from_str(input));
}
#[test]
fn test_serde_bincode() {
// Bincode is relevant to test separately from JSON because
// it is not self-describing.
use bincode::{deserialize, serialize, Infinite};
let t = NaiveTime::from_hms_nano(3, 5, 7, 98765432);
let encoded = serialize(&t, Infinite).unwrap();
let decoded: NaiveTime = deserialize(&encoded).unwrap();
assert_eq!(t, decoded);
}
}
#[cfg(test)]
mod tests {
use super::NaiveTime;
use crate::oldtime::Duration;
use crate::Timelike;
use std::u32;
#[test]
fn test_time_from_hms_milli() {
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 0),
Some(NaiveTime::from_hms_nano(3, 5, 7, 0))
);
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 777),
Some(NaiveTime::from_hms_nano(3, 5, 7, 777_000_000))
);
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 1_999),
Some(NaiveTime::from_hms_nano(3, 5, 7, 1_999_000_000))
);
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, 2_000), None);
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, 5_000), None); // overflow check
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, u32::MAX), None);
}
#[test]
fn test_time_from_hms_micro() {
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 0),
Some(NaiveTime::from_hms_nano(3, 5, 7, 0))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 333),
Some(NaiveTime::from_hms_nano(3, 5, 7, 333_000))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 777_777),
Some(NaiveTime::from_hms_nano(3, 5, 7, 777_777_000))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 1_999_999),
Some(NaiveTime::from_hms_nano(3, 5, 7, 1_999_999_000))
);
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, 2_000_000), None);
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, 5_000_000), None); // overflow check
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, u32::MAX), None);
}
#[test]
fn test_time_hms() {
assert_eq!(NaiveTime::from_hms(3, 5, 7).hour(), 3);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(0), Some(NaiveTime::from_hms(0, 5, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(23), Some(NaiveTime::from_hms(23, 5, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(24), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(u32::MAX), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).minute(), 5);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(0), Some(NaiveTime::from_hms(3, 0, 7)));
assert_eq!(
NaiveTime::from_hms(3, 5, 7).with_minute(59),
Some(NaiveTime::from_hms(3, 59, 7))
);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(60), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(u32::MAX), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).second(), 7);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(0), Some(NaiveTime::from_hms(3, 5, 0)));
assert_eq!(
NaiveTime::from_hms(3, 5, 7).with_second(59),
Some(NaiveTime::from_hms(3, 5, 59))
);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(60), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(u32::MAX), None);
}
#[test]
fn test_time_add() {
macro_rules! check {
($lhs:expr, $rhs:expr, $sum:expr) => {{
assert_eq!($lhs + $rhs, $sum);
//assert_eq!($rhs + $lhs, $sum);
}};
}
let hmsm = NaiveTime::from_hms_milli;
check!(hmsm(3, 5, 7, 900), Duration::zero(), hmsm(3, 5, 7, 900));
check!(hmsm(3, 5, 7, 900), Duration::milliseconds(100), hmsm(3, 5, 8, 0));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-1800), hmsm(3, 5, 6, 500));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-800), hmsm(3, 5, 7, 500));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-100), hmsm(3, 5, 7, 1_200));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(100), hmsm(3, 5, 7, 1_400));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(800), hmsm(3, 5, 8, 100));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(1800), hmsm(3, 5, 9, 100));
check!(hmsm(3, 5, 7, 900), Duration::seconds(86399), hmsm(3, 5, 6, 900)); // overwrap
check!(hmsm(3, 5, 7, 900), Duration::seconds(-86399), hmsm(3, 5, 8, 900));
check!(hmsm(3, 5, 7, 900), Duration::days(12345), hmsm(3, 5, 7, 900));
check!(hmsm(3, 5, 7, 1_300), Duration::days(1), hmsm(3, 5, 7, 300));
check!(hmsm(3, 5, 7, 1_300), Duration::days(-1), hmsm(3, 5, 8, 300));
// regression tests for #37
check!(hmsm(0, 0, 0, 0), Duration::milliseconds(-990), hmsm(23, 59, 59, 10));
check!(hmsm(0, 0, 0, 0), Duration::milliseconds(-9990), hmsm(23, 59, 50, 10));
}
#[test]
fn test_time_overflowing_add() {
let hmsm = NaiveTime::from_hms_milli;
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(11)),
(hmsm(14, 4, 5, 678), 0)
);
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(23)),
(hmsm(2, 4, 5, 678), 86_400)
);
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(-7)),
(hmsm(20, 4, 5, 678), -86_400)
);
// overflowing_add_signed with leap seconds may be counter-intuitive
assert_eq!(
hmsm(3, 4, 5, 1_678).overflowing_add_signed(Duration::days(1)),
(hmsm(3, 4, 5, 678), 86_400)
);
assert_eq!(
hmsm(3, 4, 5, 1_678).overflowing_add_signed(Duration::days(-1)),
(hmsm(3, 4, 6, 678), -86_400)
);
}
#[test]
fn test_time_addassignment() {
let hms = NaiveTime::from_hms;
let mut time = hms(12, 12, 12);
time += Duration::hours(10);
assert_eq!(time, hms(22, 12, 12));
time += Duration::hours(10);
assert_eq!(time, hms(8, 12, 12));
}
#[test]
fn test_time_subassignment() {
let hms = NaiveTime::from_hms;
let mut time = hms(12, 12, 12);
time -= Duration::hours(10);
assert_eq!(time, hms(2, 12, 12));
time -= Duration::hours(10);
assert_eq!(time, hms(16, 12, 12));
}
#[test]
fn test_time_sub() {
macro_rules! check {
($lhs:expr, $rhs:expr, $diff:expr) => {{
// `time1 - time2 = duration` is equivalent to `time2 - time1 = -duration`
assert_eq!($lhs.signed_duration_since($rhs), $diff);
assert_eq!($rhs.signed_duration_since($lhs), -$diff);
}};
}
let hmsm = NaiveTime::from_hms_milli;
check!(hmsm(3, 5, 7, 900), hmsm(3, 5, 7, 900), Duration::zero());
check!(hmsm(3, 5, 7, 900), hmsm(3, 5, 7, 600), Duration::milliseconds(300));
check!(hmsm(3, 5, 7, 200), hmsm(2, 4, 6, 200), Duration::seconds(3600 + 60 + 1));
check!(
hmsm(3, 5, 7, 200),
hmsm(2, 4, 6, 300),
Duration::seconds(3600 + 60) + Duration::milliseconds(900)
);
// treats the leap second as if it coincides with the prior non-leap second,
// as required by `time1 - time2 = duration` and `time2 - time1 = -duration` equivalence.
check!(hmsm(3, 5, 7, 200), hmsm(3, 5, 6, 1_800), Duration::milliseconds(400));
check!(hmsm(3, 5, 7, 1_200), hmsm(3, 5, 6, 1_800), Duration::milliseconds(1400));
check!(hmsm(3, 5, 7, 1_200), hmsm(3, 5, 6, 800), Duration::milliseconds(1400));
// additional equality: `time1 + duration = time2` is equivalent to
// `time2 - time1 = duration` IF AND ONLY IF `time2` represents a non-leap second.
assert_eq!(hmsm(3, 5, 6, 800) + Duration::milliseconds(400), hmsm(3, 5, 7, 200));
assert_eq!(hmsm(3, 5, 6, 1_800) + Duration::milliseconds(400), hmsm(3, 5, 7, 200));
}
#[test]
fn test_time_fmt() {
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 999)), "23:59:59.999");
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 1_000)), "23:59:60");
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 1_001)), "23:59:60.001");
assert_eq!(format!("{}", NaiveTime::from_hms_micro(0, 0, 0, 43210)), "00:00:00.043210");
assert_eq!(format!("{}", NaiveTime::from_hms_nano(0, 0, 0, 6543210)), "00:00:00.006543210");
// the format specifier should have no effect on `NaiveTime`
assert_eq!(format!("{:30}", NaiveTime::from_hms_milli(3, 5, 7, 9)), "03:05:07.009");
}
#[test]
fn test_date_from_str() {
// valid cases
let valid = [
"0:0:0",
"0:0:0.0000000",
"0:0:0.0000003",
" 4 : 3 : 2.1 ",
" 09:08:07 ",
" 9:8:07 ",
"23:59:60.373929310237",
];
for &s in &valid {
let d = match s.parse::<NaiveTime>() {
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::<NaiveTime>() {
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
assert!("".parse::<NaiveTime>().is_err());
assert!("x".parse::<NaiveTime>().is_err());
assert!("15".parse::<NaiveTime>().is_err());
assert!("15:8".parse::<NaiveTime>().is_err());
assert!("15:8:x".parse::<NaiveTime>().is_err());
assert!("15:8:9x".parse::<NaiveTime>().is_err());
assert!("23:59:61".parse::<NaiveTime>().is_err());
assert!("12:34:56.x".parse::<NaiveTime>().is_err());
assert!("12:34:56. 0".parse::<NaiveTime>().is_err());
}
#[test]
fn test_time_parse_from_str() {
let hms = NaiveTime::from_hms;
assert_eq!(
NaiveTime::parse_from_str("2014-5-7T12:34:56+09:30", "%Y-%m-%dT%H:%M:%S%z"),
Ok(hms(12, 34, 56))
); // ignore date and offset
assert_eq!(NaiveTime::parse_from_str("PM 12:59", "%P %H:%M"), Ok(hms(12, 59, 0)));
assert!(NaiveTime::parse_from_str("12:3456", "%H:%M:%S").is_err());
}
#[test]
fn test_time_format() {
let t = NaiveTime::from_hms_nano(3, 5, 7, 98765432);
assert_eq!(t.format("%H,%k,%I,%l,%P,%p").to_string(), "03, 3,03, 3,am,AM");
assert_eq!(t.format("%M").to_string(), "05");
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,098765432,.098765432");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".098,.098765,.098765432");
assert_eq!(t.format("%R").to_string(), "03:05");
assert_eq!(t.format("%T,%X").to_string(), "03:05:07,03:05:07");
assert_eq!(t.format("%r").to_string(), "03:05:07 AM");
assert_eq!(t.format("%t%n%%%n%t").to_string(), "\t\n%\n\t");
let t = NaiveTime::from_hms_micro(3, 5, 7, 432100);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,432100000,.432100");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".432,.432100,.432100000");
let t = NaiveTime::from_hms_milli(3, 5, 7, 210);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,210000000,.210");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".210,.210000,.210000000");
let t = NaiveTime::from_hms(3, 5, 7);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,000000000,");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".000,.000000,.000000000");
// corner cases
assert_eq!(NaiveTime::from_hms(13, 57, 9).format("%r").to_string(), "01:57:09 PM");
assert_eq!(
NaiveTime::from_hms_milli(23, 59, 59, 1_000).format("%X").to_string(),
"23:59:60"
);
}
}

27
src/naive/time/rustc_serialize.rs Normal file
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@ -0,0 +1,27 @@
use super::NaiveTime;
use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
impl Encodable for NaiveTime {
fn encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
format!("{:?}", self).encode(s)
}
}
impl Decodable for NaiveTime {
fn decode<D: Decoder>(d: &mut D) -> Result<NaiveTime, D::Error> {
d.read_str()?.parse().map_err(|_| d.error("invalid time"))
}
}
#[cfg(test)]
use rustc_serialize::json;
#[test]
fn test_encodable() {
super::test_encodable_json(json::encode);
}
#[test]
fn test_decodable() {
super::test_decodable_json(json::decode);
}

63
src/naive/time/serde.rs Normal file
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@ -0,0 +1,63 @@
use super::NaiveTime;
use core::fmt;
use serde::{de, ser};
// TODO not very optimized for space (binary formats would want something better)
// TODO round-trip for general leap seconds (not just those with second = 60)
impl ser::Serialize for NaiveTime {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
serializer.collect_str(&self)
}
}
struct NaiveTimeVisitor;
impl<'de> de::Visitor<'de> for NaiveTimeVisitor {
type Value = NaiveTime;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a formatted time string")
}
fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
value.parse().map_err(E::custom)
}
}
impl<'de> de::Deserialize<'de> for NaiveTime {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
deserializer.deserialize_str(NaiveTimeVisitor)
}
}
#[test]
fn test_serde_serialize() {
super::test_encodable_json(serde_json::to_string);
}
#[test]
fn test_serde_deserialize() {
super::test_decodable_json(|input| serde_json::from_str(input));
}
#[test]
fn test_serde_bincode() {
// Bincode is relevant to test separately from JSON because
// it is not self-describing.
use bincode::{deserialize, serialize, Infinite};
let t = NaiveTime::from_hms_nano(3, 5, 7, 98765432);
let encoded = serialize(&t, Infinite).unwrap();
let decoded: NaiveTime = deserialize(&encoded).unwrap();
assert_eq!(t, decoded);
}

278
src/naive/time/tests.rs Normal file
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@ -0,0 +1,278 @@
use super::NaiveTime;
use crate::oldtime::Duration;
use crate::Timelike;
use std::u32;
#[test]
fn test_time_from_hms_milli() {
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 0),
Some(NaiveTime::from_hms_nano(3, 5, 7, 0))
);
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 777),
Some(NaiveTime::from_hms_nano(3, 5, 7, 777_000_000))
);
assert_eq!(
NaiveTime::from_hms_milli_opt(3, 5, 7, 1_999),
Some(NaiveTime::from_hms_nano(3, 5, 7, 1_999_000_000))
);
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, 2_000), None);
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, 5_000), None); // overflow check
assert_eq!(NaiveTime::from_hms_milli_opt(3, 5, 7, u32::MAX), None);
}
#[test]
fn test_time_from_hms_micro() {
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 0),
Some(NaiveTime::from_hms_nano(3, 5, 7, 0))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 333),
Some(NaiveTime::from_hms_nano(3, 5, 7, 333_000))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 777_777),
Some(NaiveTime::from_hms_nano(3, 5, 7, 777_777_000))
);
assert_eq!(
NaiveTime::from_hms_micro_opt(3, 5, 7, 1_999_999),
Some(NaiveTime::from_hms_nano(3, 5, 7, 1_999_999_000))
);
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, 2_000_000), None);
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, 5_000_000), None); // overflow check
assert_eq!(NaiveTime::from_hms_micro_opt(3, 5, 7, u32::MAX), None);
}
#[test]
fn test_time_hms() {
assert_eq!(NaiveTime::from_hms(3, 5, 7).hour(), 3);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(0), Some(NaiveTime::from_hms(0, 5, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(23), Some(NaiveTime::from_hms(23, 5, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(24), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_hour(u32::MAX), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).minute(), 5);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(0), Some(NaiveTime::from_hms(3, 0, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(59), Some(NaiveTime::from_hms(3, 59, 7)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(60), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_minute(u32::MAX), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).second(), 7);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(0), Some(NaiveTime::from_hms(3, 5, 0)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(59), Some(NaiveTime::from_hms(3, 5, 59)));
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(60), None);
assert_eq!(NaiveTime::from_hms(3, 5, 7).with_second(u32::MAX), None);
}
#[test]
fn test_time_add() {
macro_rules! check {
($lhs:expr, $rhs:expr, $sum:expr) => {{
assert_eq!($lhs + $rhs, $sum);
//assert_eq!($rhs + $lhs, $sum);
}};
}
let hmsm = NaiveTime::from_hms_milli;
check!(hmsm(3, 5, 7, 900), Duration::zero(), hmsm(3, 5, 7, 900));
check!(hmsm(3, 5, 7, 900), Duration::milliseconds(100), hmsm(3, 5, 8, 0));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-1800), hmsm(3, 5, 6, 500));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-800), hmsm(3, 5, 7, 500));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(-100), hmsm(3, 5, 7, 1_200));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(100), hmsm(3, 5, 7, 1_400));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(800), hmsm(3, 5, 8, 100));
check!(hmsm(3, 5, 7, 1_300), Duration::milliseconds(1800), hmsm(3, 5, 9, 100));
check!(hmsm(3, 5, 7, 900), Duration::seconds(86399), hmsm(3, 5, 6, 900)); // overwrap
check!(hmsm(3, 5, 7, 900), Duration::seconds(-86399), hmsm(3, 5, 8, 900));
check!(hmsm(3, 5, 7, 900), Duration::days(12345), hmsm(3, 5, 7, 900));
check!(hmsm(3, 5, 7, 1_300), Duration::days(1), hmsm(3, 5, 7, 300));
check!(hmsm(3, 5, 7, 1_300), Duration::days(-1), hmsm(3, 5, 8, 300));
// regression tests for #37
check!(hmsm(0, 0, 0, 0), Duration::milliseconds(-990), hmsm(23, 59, 59, 10));
check!(hmsm(0, 0, 0, 0), Duration::milliseconds(-9990), hmsm(23, 59, 50, 10));
}
#[test]
fn test_time_overflowing_add() {
let hmsm = NaiveTime::from_hms_milli;
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(11)),
(hmsm(14, 4, 5, 678), 0)
);
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(23)),
(hmsm(2, 4, 5, 678), 86_400)
);
assert_eq!(
hmsm(3, 4, 5, 678).overflowing_add_signed(Duration::hours(-7)),
(hmsm(20, 4, 5, 678), -86_400)
);
// overflowing_add_signed with leap seconds may be counter-intuitive
assert_eq!(
hmsm(3, 4, 5, 1_678).overflowing_add_signed(Duration::days(1)),
(hmsm(3, 4, 5, 678), 86_400)
);
assert_eq!(
hmsm(3, 4, 5, 1_678).overflowing_add_signed(Duration::days(-1)),
(hmsm(3, 4, 6, 678), -86_400)
);
}
#[test]
fn test_time_addassignment() {
let hms = NaiveTime::from_hms;
let mut time = hms(12, 12, 12);
time += Duration::hours(10);
assert_eq!(time, hms(22, 12, 12));
time += Duration::hours(10);
assert_eq!(time, hms(8, 12, 12));
}
#[test]
fn test_time_subassignment() {
let hms = NaiveTime::from_hms;
let mut time = hms(12, 12, 12);
time -= Duration::hours(10);
assert_eq!(time, hms(2, 12, 12));
time -= Duration::hours(10);
assert_eq!(time, hms(16, 12, 12));
}
#[test]
fn test_time_sub() {
macro_rules! check {
($lhs:expr, $rhs:expr, $diff:expr) => {{
// `time1 - time2 = duration` is equivalent to `time2 - time1 = -duration`
assert_eq!($lhs.signed_duration_since($rhs), $diff);
assert_eq!($rhs.signed_duration_since($lhs), -$diff);
}};
}
let hmsm = NaiveTime::from_hms_milli;
check!(hmsm(3, 5, 7, 900), hmsm(3, 5, 7, 900), Duration::zero());
check!(hmsm(3, 5, 7, 900), hmsm(3, 5, 7, 600), Duration::milliseconds(300));
check!(hmsm(3, 5, 7, 200), hmsm(2, 4, 6, 200), Duration::seconds(3600 + 60 + 1));
check!(
hmsm(3, 5, 7, 200),
hmsm(2, 4, 6, 300),
Duration::seconds(3600 + 60) + Duration::milliseconds(900)
);
// treats the leap second as if it coincides with the prior non-leap second,
// as required by `time1 - time2 = duration` and `time2 - time1 = -duration` equivalence.
check!(hmsm(3, 5, 7, 200), hmsm(3, 5, 6, 1_800), Duration::milliseconds(400));
check!(hmsm(3, 5, 7, 1_200), hmsm(3, 5, 6, 1_800), Duration::milliseconds(1400));
check!(hmsm(3, 5, 7, 1_200), hmsm(3, 5, 6, 800), Duration::milliseconds(1400));
// additional equality: `time1 + duration = time2` is equivalent to
// `time2 - time1 = duration` IF AND ONLY IF `time2` represents a non-leap second.
assert_eq!(hmsm(3, 5, 6, 800) + Duration::milliseconds(400), hmsm(3, 5, 7, 200));
assert_eq!(hmsm(3, 5, 6, 1_800) + Duration::milliseconds(400), hmsm(3, 5, 7, 200));
}
#[test]
fn test_time_fmt() {
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 999)), "23:59:59.999");
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 1_000)), "23:59:60");
assert_eq!(format!("{}", NaiveTime::from_hms_milli(23, 59, 59, 1_001)), "23:59:60.001");
assert_eq!(format!("{}", NaiveTime::from_hms_micro(0, 0, 0, 43210)), "00:00:00.043210");
assert_eq!(format!("{}", NaiveTime::from_hms_nano(0, 0, 0, 6543210)), "00:00:00.006543210");
// the format specifier should have no effect on `NaiveTime`
assert_eq!(format!("{:30}", NaiveTime::from_hms_milli(3, 5, 7, 9)), "03:05:07.009");
}
#[test]
fn test_date_from_str() {
// valid cases
let valid = [
"0:0:0",
"0:0:0.0000000",
"0:0:0.0000003",
" 4 : 3 : 2.1 ",
" 09:08:07 ",
" 9:8:07 ",
"23:59:60.373929310237",
];
for &s in &valid {
let d = match s.parse::<NaiveTime>() {
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::<NaiveTime>() {
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
assert!("".parse::<NaiveTime>().is_err());
assert!("x".parse::<NaiveTime>().is_err());
assert!("15".parse::<NaiveTime>().is_err());
assert!("15:8".parse::<NaiveTime>().is_err());
assert!("15:8:x".parse::<NaiveTime>().is_err());
assert!("15:8:9x".parse::<NaiveTime>().is_err());
assert!("23:59:61".parse::<NaiveTime>().is_err());
assert!("12:34:56.x".parse::<NaiveTime>().is_err());
assert!("12:34:56. 0".parse::<NaiveTime>().is_err());
}
#[test]
fn test_time_parse_from_str() {
let hms = NaiveTime::from_hms;
assert_eq!(
NaiveTime::parse_from_str("2014-5-7T12:34:56+09:30", "%Y-%m-%dT%H:%M:%S%z"),
Ok(hms(12, 34, 56))
); // ignore date and offset
assert_eq!(NaiveTime::parse_from_str("PM 12:59", "%P %H:%M"), Ok(hms(12, 59, 0)));
assert!(NaiveTime::parse_from_str("12:3456", "%H:%M:%S").is_err());
}
#[test]
fn test_time_format() {
let t = NaiveTime::from_hms_nano(3, 5, 7, 98765432);
assert_eq!(t.format("%H,%k,%I,%l,%P,%p").to_string(), "03, 3,03, 3,am,AM");
assert_eq!(t.format("%M").to_string(), "05");
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,098765432,.098765432");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".098,.098765,.098765432");
assert_eq!(t.format("%R").to_string(), "03:05");
assert_eq!(t.format("%T,%X").to_string(), "03:05:07,03:05:07");
assert_eq!(t.format("%r").to_string(), "03:05:07 AM");
assert_eq!(t.format("%t%n%%%n%t").to_string(), "\t\n%\n\t");
let t = NaiveTime::from_hms_micro(3, 5, 7, 432100);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,432100000,.432100");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".432,.432100,.432100000");
let t = NaiveTime::from_hms_milli(3, 5, 7, 210);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,210000000,.210");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".210,.210000,.210000000");
let t = NaiveTime::from_hms(3, 5, 7);
assert_eq!(t.format("%S,%f,%.f").to_string(), "07,000000000,");
assert_eq!(t.format("%.3f,%.6f,%.9f").to_string(), ".000,.000000,.000000000");
// corner cases
assert_eq!(NaiveTime::from_hms(13, 57, 9).format("%r").to_string(), "01:57:09 PM");
assert_eq!(NaiveTime::from_hms_milli(23, 59, 59, 1_000).format("%X").to_string(), "23:59:60");
}