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// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Simple time handling.
//!
//! # Usage
//!
//! used by adding `time` to the dependencies in your project's `Cargo.toml`.
//!
//! ```toml
//! [dependencies]
//! time = "0.1"
//! ```
//!
//! And this in your crate root:
//!
//! ```rust
//! extern crate time;
//! ```
//!
//! This crate uses the same syntax for format strings as the
//! function from the C standard library.
#![allow(unknown_lints)]
#![allow(ellipsis_inclusive_range_patterns)] // `..=` requires Rust 1.26
#![allow(trivial_numeric_casts)]
#[cfg(unix)] extern crate libc;
#[cfg(windows)] extern crate winapi;
#[cfg(feature = "rustc-serialize")] extern crate rustc_serialize;
#[cfg(target_os = "wasi")] extern crate wasi;
#[cfg(test)] #[macro_use] extern crate log;
use std::cmp::Ordering;
use std::error::Error;
use std::fmt;
use std::ops::{Add, Sub};
pub use duration::{Duration, OutOfRangeError};
use self::ParseError::{InvalidDay, InvalidDayOfMonth, InvalidDayOfWeek,
InvalidDayOfYear, InvalidFormatSpecifier, InvalidHour,
InvalidMinute, InvalidMonth, InvalidSecond, InvalidTime,
InvalidYear, InvalidZoneOffset, InvalidSecondsSinceEpoch,
MissingFormatConverter, UnexpectedCharacter};
pub use parse::strptime;
mod display;
mod duration;
mod parse;
mod sys;
static NSEC_PER_SEC: i32 = 1_000_000_000;
/// A record specifying a time value in seconds and nanoseconds, where
/// nanoseconds represent the offset from the given second.
///
/// For example a timespec of 1.2 seconds after the beginning of the epoch would
/// be represented as {sec: 1, nsec: 200000000}.
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
#[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
pub struct Timespec { pub sec: i64, pub nsec: i32 }
/*
* Timespec assumes that pre-epoch Timespecs have negative sec and positive
* nsec fields. Darwin's and Linux's struct timespec functions handle pre-
* epoch timestamps using a "two steps back, one step forward" representation,
* though the man pages do not actually document this. For example, the time
* -1.2 seconds before the epoch is represented by `Timespec { sec: -2_i64,
* nsec: 800_000_000 }`.
*/
impl Timespec {
pub fn new(sec: i64, nsec: i32) -> Timespec {
assert!(nsec >= 0 && nsec < NSEC_PER_SEC);
Timespec { sec: sec, nsec: nsec }
}
}
impl Add<Duration> for Timespec {
type Output = Timespec;
fn add(self, other: Duration) -> Timespec {
let d_sec = other.num_seconds();
// It is safe to unwrap the nanoseconds, because there cannot be
// more than one second left, which fits in i64 and in i32.
let d_nsec = (other - Duration::seconds(d_sec))
.num_nanoseconds().unwrap() as i32;
let mut sec = self.sec + d_sec;
let mut nsec = self.nsec + d_nsec;
if nsec >= NSEC_PER_SEC {
nsec -= NSEC_PER_SEC;
sec += 1;
} else if nsec < 0 {
nsec += NSEC_PER_SEC;
sec -= 1;
}
Timespec::new(sec, nsec)
}
}
impl Sub<Duration> for Timespec {
type Output = Timespec;
fn sub(self, other: Duration) -> Timespec {
let d_sec = other.num_seconds();
// It is safe to unwrap the nanoseconds, because there cannot be
// more than one second left, which fits in i64 and in i32.
let d_nsec = (other - Duration::seconds(d_sec))
.num_nanoseconds().unwrap() as i32;
let mut sec = self.sec - d_sec;
let mut nsec = self.nsec - d_nsec;
if nsec >= NSEC_PER_SEC {
nsec -= NSEC_PER_SEC;
sec += 1;
} else if nsec < 0 {
nsec += NSEC_PER_SEC;
sec -= 1;
}
Timespec::new(sec, nsec)
}
}
impl Sub<Timespec> for Timespec {
type Output = Duration;
fn sub(self, other: Timespec) -> Duration {
let sec = self.sec - other.sec;
let nsec = self.nsec - other.nsec;
Duration::seconds(sec) + Duration::nanoseconds(nsec as i64)
}
}
/**
* Returns the current time as a `timespec` containing the seconds and
* nanoseconds since 1970-01-01T00:00:00Z.
*/
pub fn get_time() -> Timespec {
let (sec, nsec) = sys::get_time();
Timespec::new(sec, nsec)
}
/**
* Returns the current value of a high-resolution performance counter
* in nanoseconds since an unspecified epoch.
*/
#[inline]
pub fn precise_time_ns() -> u64 {
sys::get_precise_ns()
}
/**
* Returns the current value of a high-resolution performance counter
* in seconds since an unspecified epoch.
*/
pub fn precise_time_s() -> f64 {
return (precise_time_ns() as f64) / 1000000000.;
}
/// An opaque structure representing a moment in time.
///
/// The only operation that can be performed on a `PreciseTime` is the
/// calculation of the `Duration` of time that lies between them.
///
/// # Examples
///
/// Repeatedly call a function for 1 second:
///
/// ```rust
/// use time::{Duration, PreciseTime};
/// # fn do_some_work() {}
///
/// let start = PreciseTime::now();
///
/// while start.to(PreciseTime::now()) < Duration::seconds(1) {
/// do_some_work();
/// }
/// ```
#[derive(Copy, Clone)]
pub struct PreciseTime(u64);
impl PreciseTime {
/// Returns a `PreciseTime` representing the current moment in time.
pub fn now() -> PreciseTime {
PreciseTime(precise_time_ns())
}
/// Returns a `Duration` representing the span of time from the value of
/// `self` to the value of `later`.
///
/// # Notes
///
/// If `later` represents a time before `self`, the result of this method
/// is unspecified.
///
/// If `later` represents a time more than 293 years after `self`, the
/// result of this method is unspecified.
#[inline]
pub fn to(&self, later: PreciseTime) -> Duration {
// NB: even if later is less than self due to overflow, this will work
// since the subtraction will underflow properly as well.
//
// We could deal with the overflow when casting to an i64, but all that
// gets us is the ability to handle intervals of up to 584 years, which
// seems not very useful :)
Duration::nanoseconds((later.0 - self.0) as i64)
}
}
/// A structure representing a moment in time.
///
/// `SteadyTime`s are generated by a "steady" clock, that is, a clock which
/// never experiences discontinuous jumps and for which time always flows at
/// the same rate.
///
/// # Examples
///
/// Repeatedly call a function for 1 second:
///
/// ```rust
/// # use time::{Duration, SteadyTime};
/// # fn do_some_work() {}
/// let start = SteadyTime::now();
///
/// while SteadyTime::now() - start < Duration::seconds(1) {
/// do_some_work();
/// }
/// ```
#[derive(Clone, Copy, PartialOrd, Ord, PartialEq, Eq, Debug)]
pub struct SteadyTime(sys::SteadyTime);
impl SteadyTime {
/// Returns a `SteadyTime` representing the current moment in time.
pub fn now() -> SteadyTime {
SteadyTime(sys::SteadyTime::now())
}
}
impl fmt::Display for SteadyTime {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
// TODO: needs a display customization
fmt::Debug::fmt(self, fmt)
}
}
impl Sub for SteadyTime {
type Output = Duration;
fn sub(self, other: SteadyTime) -> Duration {
self.0 - other.0
}
}
impl Sub<Duration> for SteadyTime {
type Output = SteadyTime;
fn sub(self, other: Duration) -> SteadyTime {
SteadyTime(self.0 - other)
}
}
impl Add<Duration> for SteadyTime {
type Output = SteadyTime;
fn add(self, other: Duration) -> SteadyTime {
SteadyTime(self.0 + other)
}
}
#[cfg(not(any(windows, target_env = "sgx")))]
pub fn tzset() {
extern { fn tzset(); }
unsafe { tzset() }
}
#[cfg(any(windows, target_env = "sgx"))]
pub fn tzset() {}
/// Holds a calendar date and time broken down into its components (year, month,
/// day, and so on), also called a broken-down time value.
// FIXME: use c_int instead of i32?
#[repr(C)]
#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
#[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
pub struct Tm {
/// Seconds after the minute - [0, 60]
pub tm_sec: i32,
/// Minutes after the hour - [0, 59]
pub tm_min: i32,
/// Hours after midnight - [0, 23]
pub tm_hour: i32,
/// Day of the month - [1, 31]
pub tm_mday: i32,
/// Months since January - [0, 11]
pub tm_mon: i32,
/// Years since 1900
pub tm_year: i32,
/// Days since Sunday - [0, 6]. 0 = Sunday, 1 = Monday, ..., 6 = Saturday.
pub tm_wday: i32,
/// Days since January 1 - [0, 365]
pub tm_yday: i32,
/// Daylight Saving Time flag.
///
/// This value is positive if Daylight Saving Time is in effect, zero if
/// Daylight Saving Time is not in effect, and negative if this information
/// is not available.
pub tm_isdst: i32,
/// Identifies the time zone that was used to compute this broken-down time
/// value, including any adjustment for Daylight Saving Time. This is the
/// number of seconds east of UTC. For example, for U.S. Pacific Daylight
/// Time, the value is `-7*60*60 = -25200`.
pub tm_utcoff: i32,
/// Nanoseconds after the second - [0, 10<sup>9</sup> - 1]
pub tm_nsec: i32,
}
impl Add<Duration> for Tm {
type Output = Tm;
/// The resulting Tm is in UTC.
// FIXME: The resulting Tm should have the same timezone as `self`;
// however, we need a function such as `at_tm(clock: Timespec, offset: i32)`
// for this.
fn add(self, other: Duration) -> Tm {
at_utc(self.to_timespec() + other)
}
}
impl Sub<Duration> for Tm {
type Output = Tm;
/// The resulting Tm is in UTC.
// FIXME: The resulting Tm should have the same timezone as `self`;
// however, we need a function such as `at_tm(clock: Timespec, offset: i32)`
// for this.
fn sub(self, other: Duration) -> Tm {
at_utc(self.to_timespec() - other)
}
}
impl Sub<Tm> for Tm {
type Output = Duration;
fn sub(self, other: Tm) -> Duration {
self.to_timespec() - other.to_timespec()
}
}
impl PartialOrd for Tm {
fn partial_cmp(&self, other: &Tm) -> Option<Ordering> {
self.to_timespec().partial_cmp(&other.to_timespec())
}
}
impl Ord for Tm {
fn cmp(&self, other: &Tm) -> Ordering {
self.to_timespec().cmp(&other.to_timespec())
}
}
pub fn empty_tm() -> Tm {
Tm {
tm_sec: 0,
tm_min: 0,
tm_hour: 0,
tm_mday: 0,
tm_mon: 0,
tm_year: 0,
tm_wday: 0,
tm_yday: 0,
tm_isdst: 0,
tm_utcoff: 0,
tm_nsec: 0,
}
}
/// Returns the specified time in UTC
pub fn at_utc(clock: Timespec) -> Tm {
let Timespec { sec, nsec } = clock;
let mut tm = empty_tm();
sys::time_to_utc_tm(sec, &mut tm);
tm.tm_nsec = nsec;
tm
}
/// Returns the current time in UTC
pub fn now_utc() -> Tm {
at_utc(get_time())
}
/// Returns the specified time in the local timezone
pub fn at(clock: Timespec) -> Tm {
let Timespec { sec, nsec } = clock;
let mut tm = empty_tm();
sys::time_to_local_tm(sec, &mut tm);
tm.tm_nsec = nsec;
tm
}
/// Returns the current time in the local timezone
pub fn now() -> Tm {
at(get_time())
}
impl Tm {
/// Convert time to the seconds from January 1, 1970
pub fn to_timespec(&self) -> Timespec {
let sec = match self.tm_utcoff {
0 => sys::utc_tm_to_time(self),
_ => sys::local_tm_to_time(self)
};
Timespec::new(sec, self.tm_nsec)
}
/// Convert time to the local timezone
pub fn to_local(&self) -> Tm {
at(self.to_timespec())
}
/// Convert time to the UTC
pub fn to_utc(&self) -> Tm {
match self.tm_utcoff {
0 => *self,
_ => at_utc(self.to_timespec())
}
}
/**
* Returns a TmFmt that outputs according to the `asctime` format in ISO
* C, in the local timezone.
*
* Example: "Thu Jan 1 00:00:00 1970"
*/
pub fn ctime(&self) -> TmFmt {
TmFmt {
tm: self,
format: Fmt::Ctime,
}
}
/**
* Returns a TmFmt that outputs according to the `asctime` format in ISO
* C.
*
* Example: "Thu Jan 1 00:00:00 1970"
*/
pub fn asctime(&self) -> TmFmt {
TmFmt {
tm: self,
format: Fmt::Str("%c"),
}
}
/// Formats the time according to the format string.
pub fn strftime<'a>(&'a self, format: &'a str) -> Result<TmFmt<'a>, ParseError> {
validate_format(TmFmt {
tm: self,
format: Fmt::Str(format),
})
}
/**
* Returns a TmFmt that outputs according to RFC 822.
*
* local: "Thu, 22 Mar 2012 07:53:18 PST"
* utc: "Thu, 22 Mar 2012 14:53:18 GMT"
*/
pub fn rfc822(&self) -> TmFmt {
let fmt = if self.tm_utcoff == 0 {
"%a, %d %b %Y %T GMT"
} else {
"%a, %d %b %Y %T %Z"
};
TmFmt {
tm: self,
format: Fmt::Str(fmt),
}
}
/**
* Returns a TmFmt that outputs according to RFC 822 with Zulu time.
*
* local: "Thu, 22 Mar 2012 07:53:18 -0700"
* utc: "Thu, 22 Mar 2012 14:53:18 -0000"
*/
pub fn rfc822z(&self) -> TmFmt {
TmFmt {
tm: self,
format: Fmt::Str("%a, %d %b %Y %T %z"),
}
}
/**
* Returns a TmFmt that outputs according to RFC 3339. RFC 3339 is
* compatible with ISO 8601.
*
* local: "2012-02-22T07:53:18-07:00"
* utc: "2012-02-22T14:53:18Z"
*/
pub fn rfc3339<'a>(&'a self) -> TmFmt {
TmFmt {
tm: self,
format: Fmt::Rfc3339,
}
}
}
#[derive(Copy, PartialEq, Debug, Clone)]
pub enum ParseError {
InvalidSecond,
InvalidMinute,
InvalidHour,
InvalidDay,
InvalidMonth,
InvalidYear,
InvalidDayOfWeek,
InvalidDayOfMonth,
InvalidDayOfYear,
InvalidZoneOffset,
InvalidTime,
InvalidSecondsSinceEpoch,
MissingFormatConverter,
InvalidFormatSpecifier(char),
UnexpectedCharacter(char, char),
}
impl fmt::Display for ParseError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
#[allow(deprecated)]
match *self {
InvalidFormatSpecifier(ch) => {
write!(f, "{}: %{}", self.description(), ch)
}
UnexpectedCharacter(a, b) => {
write!(f, "expected: `{}`, found: `{}`", a, b)
}
_ => write!(f, "{}", self.description())
}
}
}
impl Error for ParseError {
fn description(&self) -> &str {
match *self {
InvalidSecond => "Invalid second.",
InvalidMinute => "Invalid minute.",
InvalidHour => "Invalid hour.",
InvalidDay => "Invalid day.",
InvalidMonth => "Invalid month.",
InvalidYear => "Invalid year.",
InvalidDayOfWeek => "Invalid day of the week.",
InvalidDayOfMonth => "Invalid day of the month.",
InvalidDayOfYear => "Invalid day of the year.",
InvalidZoneOffset => "Invalid zone offset.",
InvalidTime => "Invalid time.",
InvalidSecondsSinceEpoch => "Invalid seconds since epoch.",
MissingFormatConverter => "missing format converter after `%`",
InvalidFormatSpecifier(..) => "invalid format specifier",
UnexpectedCharacter(..) => "Unexpected character.",
}
}
}
/// A wrapper around a `Tm` and format string that implements Display.
#[derive(Debug)]
pub struct TmFmt<'a> {
tm: &'a Tm,
format: Fmt<'a>
}
#[derive(Debug)]
enum Fmt<'a> {
Str(&'a str),
Rfc3339,
Ctime,
}
fn validate_format<'a>(fmt: TmFmt<'a>) -> Result<TmFmt<'a>, ParseError> {
match (fmt.tm.tm_wday, fmt.tm.tm_mon) {
(0...6, 0...11) => (),
(_wday, 0...11) => return Err(InvalidDayOfWeek),
(0...6, _mon) => return Err(InvalidMonth),
_ => return Err(InvalidDay)
}
match fmt.format {
Fmt::Str(ref s) => {
let mut chars = s.chars();
loop {
match chars.next() {
Some('%') => {
match chars.next() {
Some('A') | Some('a') | Some('B') | Some('b') |
Some('C') | Some('c') | Some('D') | Some('d') |
Some('e') | Some('F') | Some('f') | Some('G') |
Some('g') | Some('H') | Some('h') | Some('I') |
Some('j') | Some('k') | Some('l') | Some('M') |
Some('m') | Some('n') | Some('P') | Some('p') |
Some('R') | Some('r') | Some('S') | Some('s') |
Some('T') | Some('t') | Some('U') | Some('u') |
Some('V') | Some('v') | Some('W') | Some('w') |
Some('X') | Some('x') | Some('Y') | Some('y') |
Some('Z') | Some('z') | Some('+') | Some('%') => (),
Some(c) => return Err(InvalidFormatSpecifier(c)),
None => return Err(MissingFormatConverter),
}
},
None => break,
_ => ()
}
}
},
_ => ()
}
Ok(fmt)
}
/// Formats the time according to the format string.
pub fn strftime(format: &str, tm: &Tm) -> Result<String, ParseError> {
tm.strftime(format).map(|fmt| fmt.to_string())
}
#[cfg(test)]
mod tests {
use super::{Timespec, get_time, precise_time_ns, precise_time_s,
at_utc, at, strptime, PreciseTime, SteadyTime, ParseError, Duration};
use super::ParseError::{InvalidTime, InvalidYear, MissingFormatConverter,
InvalidFormatSpecifier};
#[allow(deprecated)] // `Once::new` is const starting in Rust 1.32
use std::sync::ONCE_INIT;
use std::sync::{Once, Mutex, MutexGuard, LockResult};
use std::i32;
use std::mem;
struct TzReset {
_tzreset: ::sys::TzReset,
_lock: LockResult<MutexGuard<'static, ()>>,
}
fn set_time_zone_la_or_london(london: bool) -> TzReset {
// Lock manages current timezone because some tests require LA some
// London
static mut LOCK: *mut Mutex<()> = 0 as *mut _;
#[allow(deprecated)] // `Once::new` is const starting in Rust 1.32
static INIT: Once = ONCE_INIT;
unsafe {
INIT.call_once(|| {
LOCK = mem::transmute(Box::new(Mutex::new(())));
});
let timezone_lock = (*LOCK).lock();
let reset_func = if london {
::sys::set_london_with_dst_time_zone()
} else {
::sys::set_los_angeles_time_zone()
};
TzReset {
_lock: timezone_lock,
_tzreset: reset_func,
}
}
}
fn set_time_zone() -> TzReset {
set_time_zone_la_or_london(false)
}
fn set_time_zone_london_dst() -> TzReset {
set_time_zone_la_or_london(true)
}
#[test]
fn test_get_time() {
static SOME_RECENT_DATE: i64 = 1577836800i64; // 2020-01-01T00:00:00Z
static SOME_FUTURE_DATE: i64 = i32::MAX as i64; // Y2038
let tv1 = get_time();
debug!("tv1={} sec + {} nsec", tv1.sec, tv1.nsec);
assert!(tv1.sec > SOME_RECENT_DATE);
assert!(tv1.nsec < 1000000000i32);
let tv2 = get_time();
debug!("tv2={} sec + {} nsec", tv2.sec, tv2.nsec);
assert!(tv2.sec >= tv1.sec);
assert!(tv2.sec < SOME_FUTURE_DATE);
assert!(tv2.nsec < 1000000000i32);
if tv2.sec == tv1.sec {
assert!(tv2.nsec >= tv1.nsec);
}
}
#[test]
fn test_precise_time() {
let s0 = precise_time_s();
debug!("s0={} sec", s0);
assert!(s0 > 0.);
let ns0 = precise_time_ns();
let ns1 = precise_time_ns();
debug!("ns0={} ns", ns0);
debug!("ns1={} ns", ns1);
assert!(ns1 >= ns0);
let ns2 = precise_time_ns();
debug!("ns2={} ns", ns2);
assert!(ns2 >= ns1);
}
#[test]
fn test_precise_time_to() {
let t0 = PreciseTime(1000);
let t1 = PreciseTime(1023);
assert_eq!(Duration::nanoseconds(23), t0.to(t1));
}
#[test]
fn test_at_utc() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
assert_eq!(utc.tm_sec, 30);
assert_eq!(utc.tm_min, 31);
assert_eq!(utc.tm_hour, 23);
assert_eq!(utc.tm_mday, 13);
assert_eq!(utc.tm_mon, 1);
assert_eq!(utc.tm_year, 109);
assert_eq!(utc.tm_wday, 5);
assert_eq!(utc.tm_yday, 43);
assert_eq!(utc.tm_isdst, 0);
assert_eq!(utc.tm_utcoff, 0);
assert_eq!(utc.tm_nsec, 54321);
}
#[test]
fn test_at() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let local = at(time);
debug!("time_at: {:?}", local);
assert_eq!(local.tm_sec, 30);
assert_eq!(local.tm_min, 31);
assert_eq!(local.tm_hour, 15);
assert_eq!(local.tm_mday, 13);
assert_eq!(local.tm_mon, 1);
assert_eq!(local.tm_year, 109);
assert_eq!(local.tm_wday, 5);
assert_eq!(local.tm_yday, 43);
assert_eq!(local.tm_isdst, 0);
assert_eq!(local.tm_utcoff, -28800);
assert_eq!(local.tm_nsec, 54321);
}
#[test]
fn test_to_timespec() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
assert_eq!(utc.to_timespec(), time);
assert_eq!(utc.to_local().to_timespec(), time);
}
#[test]
fn test_conversions() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
assert!(local.to_local() == local);
assert!(local.to_utc() == utc);
assert!(local.to_utc().to_local() == local);
assert!(utc.to_utc() == utc);
assert!(utc.to_local() == local);
assert!(utc.to_local().to_utc() == utc);
}
#[test]
fn test_strptime() {
let _reset = set_time_zone();
match strptime("", "") {
Ok(ref tm) => {
assert!(tm.tm_sec == 0);
assert!(tm.tm_min == 0);
assert!(tm.tm_hour == 0);
assert!(tm.tm_mday == 0);
assert!(tm.tm_mon == 0);
assert!(tm.tm_year == 0);
assert!(tm.tm_wday == 0);
assert!(tm.tm_isdst == 0);
assert!(tm.tm_utcoff == 0);
assert!(tm.tm_nsec == 0);
}
Err(_) => ()
}
let format = "%a %b %e %T.%f %Y";
assert_eq!(strptime("", format), Err(ParseError::InvalidDay));
assert_eq!(strptime("Fri Feb 13 15:31:30", format),
Err(InvalidTime));
match strptime("Fri Feb 13 15:31:30.01234 2009", format) {
Err(e) => panic!("{}", e),
Ok(ref tm) => {
assert_eq!(tm.tm_sec, 30);
assert_eq!(tm.tm_min, 31);
assert_eq!(tm.tm_hour, 15);
assert_eq!(tm.tm_mday, 13);
assert_eq!(tm.tm_mon, 1);
assert_eq!(tm.tm_year, 109);
assert_eq!(tm.tm_wday, 5);
assert_eq!(tm.tm_yday, 0);
assert_eq!(tm.tm_isdst, 0);
assert_eq!(tm.tm_utcoff, 0);
assert_eq!(tm.tm_nsec, 12340000);
}
}
fn test(s: &str, format: &str) -> bool {
match strptime(s, format) {
Ok(tm) => {
tm.strftime(format).unwrap().to_string() == s.to_string()
},
Err(e) => panic!("{:?}, s={:?}, format={:?}", e, s, format)
}
}
fn test_oneway(s : &str, format : &str) -> bool {
match strptime(s, format) {
Ok(_) => {
// oneway tests are used when reformatting the parsed Tm
// back into a string can generate a different string
// from the original (i.e. leading zeroes)
true
},
Err(e) => panic!("{:?}, s={:?}, format={:?}", e, s, format)
}
}
let days = [
"Sunday".to_string(),
"Monday".to_string(),
"Tuesday".to_string(),
"Wednesday".to_string(),
"Thursday".to_string(),
"Friday".to_string(),
"Saturday".to_string()
];
for day in days.iter() {
assert!(test(&day, "%A"));
}
let days = [
"Sun".to_string(),
"Mon".to_string(),
"Tue".to_string(),
"Wed".to_string(),
"Thu".to_string(),
"Fri".to_string(),
"Sat".to_string()
];
for day in days.iter() {
assert!(test(&day, "%a"));
}
let months = [
"January".to_string(),
"February".to_string(),
"March".to_string(),
"April".to_string(),
"May".to_string(),
"June".to_string(),
"July".to_string(),
"August".to_string(),
"September".to_string(),
"October".to_string(),
"November".to_string(),
"December".to_string()
];
for day in months.iter() {
assert!(test(&day, "%B"));
}
let months = [
"Jan".to_string(),
"Feb".to_string(),
"Mar".to_string(),
"Apr".to_string(),
"May".to_string(),
"Jun".to_string(),
"Jul".to_string(),
"Aug".to_string(),
"Sep".to_string(),
"Oct".to_string(),
"Nov".to_string(),
"Dec".to_string()
];
for day in months.iter() {
assert!(test(&day, "%b"));
}
assert!(test("19", "%C"));
assert!(test("Fri Feb 3 23:31:30 2009", "%c"));
assert!(test("Fri Feb 13 23:31:30 2009", "%c"));
assert!(test("02/13/09", "%D"));
assert!(test("03", "%d"));
assert!(test("13", "%d"));
assert!(test(" 3", "%e"));
assert!(test("13", "%e"));
assert!(test("2009-02-13", "%F"));
assert!(test("03", "%H"));
assert!(test("13", "%H"));
assert!(test("03", "%I")); // FIXME (#2350): flesh out
assert!(test("11", "%I")); // FIXME (#2350): flesh out
assert!(test("044", "%j"));
assert!(test(" 3", "%k"));
assert!(test("13", "%k"));
assert!(test(" 1", "%l"));
assert!(test("11", "%l"));
assert!(test("03", "%M"));
assert!(test("13", "%M"));
assert!(test("\n", "%n"));
assert!(test("am", "%P"));
assert!(test("pm", "%P"));
assert!(test("AM", "%p"));
assert!(test("PM", "%p"));
assert!(test("23:31", "%R"));
assert!(test("11:31:30 AM", "%r"));
assert!(test("11:31:30 PM", "%r"));
assert!(test("03", "%S"));
assert!(test("13", "%S"));
assert!(test("15:31:30", "%T"));
assert!(test("\t", "%t"));
assert!(test("1", "%u"));
assert!(test("7", "%u"));
assert!(test("13-Feb-2009", "%v"));
assert!(test("0", "%w"));
assert!(test("6", "%w"));
assert!(test("2009", "%Y"));
assert!(test("09", "%y"));
assert!(test_oneway("3", "%d"));
assert!(test_oneway("3", "%H"));
assert!(test_oneway("3", "%e"));
assert!(test_oneway("3", "%M"));
assert!(test_oneway("3", "%S"));
assert!(strptime("-0000", "%z").unwrap().tm_utcoff == 0);
assert!(strptime("-00:00", "%z").unwrap().tm_utcoff == 0);
assert!(strptime("Z", "%z").unwrap().tm_utcoff == 0);
assert_eq!(-28800, strptime("-0800", "%z").unwrap().tm_utcoff);
assert_eq!(-28800, strptime("-08:00", "%z").unwrap().tm_utcoff);
assert_eq!(28800, strptime("+0800", "%z").unwrap().tm_utcoff);
assert_eq!(28800, strptime("+08:00", "%z").unwrap().tm_utcoff);
assert_eq!(5400, strptime("+0130", "%z").unwrap().tm_utcoff);
assert_eq!(5400, strptime("+01:30", "%z").unwrap().tm_utcoff);
assert!(test("%", "%%"));
// Test for #7256
assert_eq!(strptime("360", "%Y-%m-%d"), Err(InvalidYear));
// Test for epoch seconds parsing
{
assert!(test("1428035610", "%s"));
let tm = strptime("1428035610", "%s").unwrap();
assert_eq!(tm.tm_utcoff, 0);
assert_eq!(tm.tm_isdst, 0);
assert_eq!(tm.tm_yday, 92);
assert_eq!(tm.tm_wday, 5);
assert_eq!(tm.tm_year, 115);
assert_eq!(tm.tm_mon, 3);
assert_eq!(tm.tm_mday, 3);
assert_eq!(tm.tm_hour, 4);
}
}
#[test]
fn test_asctime() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
debug!("test_ctime: {} {}", utc.asctime(), local.asctime());
assert_eq!(utc.asctime().to_string(), "Fri Feb 13 23:31:30 2009".to_string());
assert_eq!(local.asctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
}
#[test]
fn test_ctime() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
debug!("test_ctime: {} {}", utc.ctime(), local.ctime());
assert_eq!(utc.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
}
#[test]
fn test_strftime() {
let _reset = set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
assert_eq!(local.strftime("").unwrap().to_string(), "".to_string());
assert_eq!(local.strftime("%A").unwrap().to_string(), "Friday".to_string());
assert_eq!(local.strftime("%a").unwrap().to_string(), "Fri".to_string());
assert_eq!(local.strftime("%B").unwrap().to_string(), "February".to_string());
assert_eq!(local.strftime("%b").unwrap().to_string(), "Feb".to_string());
assert_eq!(local.strftime("%C").unwrap().to_string(), "20".to_string());
assert_eq!(local.strftime("%c").unwrap().to_string(),
"Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.strftime("%D").unwrap().to_string(), "02/13/09".to_string());
assert_eq!(local.strftime("%d").unwrap().to_string(), "13".to_string());
assert_eq!(local.strftime("%e").unwrap().to_string(), "13".to_string());
assert_eq!(local.strftime("%F").unwrap().to_string(), "2009-02-13".to_string());
assert_eq!(local.strftime("%f").unwrap().to_string(), "000054321".to_string());
assert_eq!(local.strftime("%G").unwrap().to_string(), "2009".to_string());
assert_eq!(local.strftime("%g").unwrap().to_string(), "09".to_string());
assert_eq!(local.strftime("%H").unwrap().to_string(), "15".to_string());
assert_eq!(local.strftime("%h").unwrap().to_string(), "Feb".to_string());
assert_eq!(local.strftime("%I").unwrap().to_string(), "03".to_string());
assert_eq!(local.strftime("%j").unwrap().to_string(), "044".to_string());
assert_eq!(local.strftime("%k").unwrap().to_string(), "15".to_string());
assert_eq!(local.strftime("%l").unwrap().to_string(), " 3".to_string());
assert_eq!(local.strftime("%M").unwrap().to_string(), "31".to_string());
assert_eq!(local.strftime("%m").unwrap().to_string(), "02".to_string());
assert_eq!(local.strftime("%n").unwrap().to_string(), "\n".to_string());
assert_eq!(local.strftime("%P").unwrap().to_string(), "pm".to_string());
assert_eq!(local.strftime("%p").unwrap().to_string(), "PM".to_string());
assert_eq!(local.strftime("%R").unwrap().to_string(), "15:31".to_string());
assert_eq!(local.strftime("%r").unwrap().to_string(), "03:31:30 PM".to_string());
assert_eq!(local.strftime("%S").unwrap().to_string(), "30".to_string());
assert_eq!(local.strftime("%s").unwrap().to_string(), "1234567890".to_string());
assert_eq!(local.strftime("%T").unwrap().to_string(), "15:31:30".to_string());
assert_eq!(local.strftime("%t").unwrap().to_string(), "\t".to_string());
assert_eq!(local.strftime("%U").unwrap().to_string(), "06".to_string());
assert_eq!(local.strftime("%u").unwrap().to_string(), "5".to_string());
assert_eq!(local.strftime("%V").unwrap().to_string(), "07".to_string());
assert_eq!(local.strftime("%v").unwrap().to_string(), "13-Feb-2009".to_string());
assert_eq!(local.strftime("%W").unwrap().to_string(), "06".to_string());
assert_eq!(local.strftime("%w").unwrap().to_string(), "5".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%X").unwrap().to_string(), "15:31:30".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%x").unwrap().to_string(), "02/13/09".to_string());
assert_eq!(local.strftime("%Y").unwrap().to_string(), "2009".to_string());
assert_eq!(local.strftime("%y").unwrap().to_string(), "09".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%Z").unwrap().to_string(), "".to_string());
assert_eq!(local.strftime("%z").unwrap().to_string(), "-0800".to_string());
assert_eq!(local.strftime("%+").unwrap().to_string(),
"2009-02-13T15:31:30-08:00".to_string());
assert_eq!(local.strftime("%%").unwrap().to_string(), "%".to_string());
let invalid_specifiers = ["%E", "%J", "%K", "%L", "%N", "%O", "%o", "%Q", "%q"];
for &sp in invalid_specifiers.iter() {
assert_eq!(local.strftime(sp).unwrap_err(),
InvalidFormatSpecifier(sp[1..].chars().next().unwrap()));
}
assert_eq!(local.strftime("%").unwrap_err(), MissingFormatConverter);
assert_eq!(local.strftime("%A %").unwrap_err(), MissingFormatConverter);
assert_eq!(local.asctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.rfc822z().to_string(), "Fri, 13 Feb 2009 15:31:30 -0800".to_string());
assert_eq!(local.rfc3339().to_string(), "2009-02-13T15:31:30-08:00".to_string());
assert_eq!(utc.asctime().to_string(), "Fri Feb 13 23:31:30 2009".to_string());
assert_eq!(utc.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(utc.rfc822().to_string(), "Fri, 13 Feb 2009 23:31:30 GMT".to_string());
assert_eq!(utc.rfc822z().to_string(), "Fri, 13 Feb 2009 23:31:30 -0000".to_string());
assert_eq!(utc.rfc3339().to_string(), "2009-02-13T23:31:30Z".to_string());
}
#[test]
fn test_timespec_eq_ord() {
let a = &Timespec::new(-2, 1);
let b = &Timespec::new(-1, 2);
let c = &Timespec::new(1, 2);
let d = &Timespec::new(2, 1);
let e = &Timespec::new(2, 1);
assert!(d.eq(e));
assert!(c.ne(e));
assert!(a.lt(b));
assert!(b.lt(c));
assert!(c.lt(d));
assert!(a.le(b));
assert!(b.le(c));
assert!(c.le(d));
assert!(d.le(e));
assert!(e.le(d));
assert!(b.ge(a));
assert!(c.ge(b));
assert!(d.ge(c));
assert!(e.ge(d));
assert!(d.ge(e));
assert!(b.gt(a));
assert!(c.gt(b));
assert!(d.gt(c));
}
#[test]
#[allow(deprecated)]
fn test_timespec_hash() {
use std::hash::{Hash, Hasher};
let c = &Timespec::new(3, 2);
let d = &Timespec::new(2, 1);
let e = &Timespec::new(2, 1);
let mut hasher = ::std::hash::SipHasher::new();
let d_hash:u64 = {
d.hash(&mut hasher);
hasher.finish()
};
hasher = ::std::hash::SipHasher::new();
let e_hash:u64 = {
e.hash(&mut hasher);
hasher.finish()
};
hasher = ::std::hash::SipHasher::new();
let c_hash:u64 = {
c.hash(&mut hasher);
hasher.finish()
};
assert_eq!(d_hash, e_hash);
assert!(c_hash != e_hash);
}
#[test]
fn test_timespec_add() {
let a = Timespec::new(1, 2);
let b = Duration::seconds(2) + Duration::nanoseconds(3);
let c = a + b;
assert_eq!(c.sec, 3);
assert_eq!(c.nsec, 5);
let p = Timespec::new(1, super::NSEC_PER_SEC - 2);
let q = Duration::seconds(2) + Duration::nanoseconds(2);
let r = p + q;
assert_eq!(r.sec, 4);
assert_eq!(r.nsec, 0);
let u = Timespec::new(1, super::NSEC_PER_SEC - 2);
let v = Duration::seconds(2) + Duration::nanoseconds(3);
let w = u + v;
assert_eq!(w.sec, 4);
assert_eq!(w.nsec, 1);
let k = Timespec::new(1, 0);
let l = Duration::nanoseconds(-1);
let m = k + l;
assert_eq!(m.sec, 0);
assert_eq!(m.nsec, 999_999_999);
}
#[test]
fn test_timespec_sub() {
let a = Timespec::new(2, 3);
let b = Timespec::new(1, 2);
let c = a - b;
assert_eq!(c.num_nanoseconds(), Some(super::NSEC_PER_SEC as i64 + 1));
let p = Timespec::new(2, 0);
let q = Timespec::new(1, 2);
let r = p - q;
assert_eq!(r.num_nanoseconds(), Some(super::NSEC_PER_SEC as i64 - 2));
let u = Timespec::new(1, 2);
let v = Timespec::new(2, 3);
let w = u - v;
assert_eq!(w.num_nanoseconds(), Some(-super::NSEC_PER_SEC as i64 - 1));
}
#[test]
fn test_time_sub() {
let a = ::now();
let b = at(a.to_timespec() + Duration::seconds(5));
let c = b - a;
assert_eq!(c.num_nanoseconds(), Some(super::NSEC_PER_SEC as i64 * 5));
}
#[test]
fn test_steadytime_sub() {
let a = SteadyTime::now();
let b = a + Duration::seconds(1);
assert_eq!(b - a, Duration::seconds(1));
assert_eq!(a - b, Duration::seconds(-1));
}
#[test]
fn test_date_before_1970() {
let early = strptime("1901-01-06", "%F").unwrap();
let late = strptime("2000-01-01", "%F").unwrap();
assert!(early < late);
}
#[test]
fn test_dst() {
let _reset = set_time_zone_london_dst();
let utc_in_feb = strptime("2015-02-01Z", "%F%z").unwrap();
let utc_in_jun = strptime("2015-06-01Z", "%F%z").unwrap();
let utc_in_nov = strptime("2015-11-01Z", "%F%z").unwrap();
let local_in_feb = utc_in_feb.to_local();
let local_in_jun = utc_in_jun.to_local();
let local_in_nov = utc_in_nov.to_local();
assert_eq!(local_in_feb.tm_mon, 1);
assert_eq!(local_in_feb.tm_hour, 0);
assert_eq!(local_in_feb.tm_utcoff, 0);
assert_eq!(local_in_feb.tm_isdst, 0);
assert_eq!(local_in_jun.tm_mon, 5);
assert_eq!(local_in_jun.tm_hour, 1);
assert_eq!(local_in_jun.tm_utcoff, 3600);
assert_eq!(local_in_jun.tm_isdst, 1);
assert_eq!(local_in_nov.tm_mon, 10);
assert_eq!(local_in_nov.tm_hour, 0);
assert_eq!(local_in_nov.tm_utcoff, 0);
assert_eq!(local_in_nov.tm_isdst, 0)
}
}