763 lines
24 KiB
Rust
763 lines
24 KiB
Rust
//! CCSDS Time Code Formats according to [CCSDS 301.0-B-4](https://public.ccsds.org/Pubs/301x0b4e1.pdf)
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use crate::ByteConversionError;
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#[cfg(feature = "chrono")]
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use chrono::{TimeZone, Utc};
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use core::cmp::Ordering;
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use core::fmt::{Display, Formatter};
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use core::ops::{Add, AddAssign, Sub};
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use core::time::Duration;
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#[allow(unused_imports)]
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#[cfg(not(feature = "std"))]
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use num_traits::float::FloatCore;
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#[cfg(feature = "serde")]
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use serde::{Deserialize, Serialize};
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#[cfg(feature = "std")]
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use std::error::Error;
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#[cfg(feature = "std")]
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use std::time::{SystemTime, SystemTimeError};
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#[cfg(feature = "std")]
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pub use std_mod::*;
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pub mod ascii;
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pub mod cds;
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pub mod cuc;
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pub const DAYS_CCSDS_TO_UNIX: i32 = -4383;
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pub const SECONDS_PER_DAY: u32 = 86400;
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pub const MS_PER_DAY: u32 = SECONDS_PER_DAY * 1000;
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pub const NANOS_PER_SECOND: u32 = 1_000_000_000;
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#[derive(Debug, PartialEq, Eq, Copy, Clone)]
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#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "defmt", derive(defmt::Format))]
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pub enum CcsdsTimeCode {
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CucCcsdsEpoch = 0b001,
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CucAgencyEpoch = 0b010,
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Cds = 0b100,
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Ccs = 0b101,
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AgencyDefined = 0b110,
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}
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impl TryFrom<u8> for CcsdsTimeCode {
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type Error = ();
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fn try_from(value: u8) -> Result<Self, Self::Error> {
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match value {
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x if x == CcsdsTimeCode::CucCcsdsEpoch as u8 => Ok(CcsdsTimeCode::CucCcsdsEpoch),
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x if x == CcsdsTimeCode::CucAgencyEpoch as u8 => Ok(CcsdsTimeCode::CucAgencyEpoch),
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x if x == CcsdsTimeCode::Cds as u8 => Ok(CcsdsTimeCode::Cds),
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x if x == CcsdsTimeCode::Ccs as u8 => Ok(CcsdsTimeCode::Ccs),
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x if x == CcsdsTimeCode::AgencyDefined as u8 => Ok(CcsdsTimeCode::AgencyDefined),
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_ => Err(()),
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}
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}
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}
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/// Retrieve the CCSDS time code from the p-field. If no valid time code identifier is found, the
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/// value of the raw time code identification field is returned.
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pub fn ccsds_time_code_from_p_field(pfield: u8) -> Result<CcsdsTimeCode, u8> {
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let raw_bits = (pfield >> 4) & 0b111;
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CcsdsTimeCode::try_from(raw_bits).map_err(|_| raw_bits)
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}
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#[derive(Debug, PartialEq, Eq, Copy, Clone, thiserror::Error)]
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#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "defmt", derive(defmt::Format))]
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#[error("date before ccsds epoch: {0:?}")]
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pub struct DateBeforeCcsdsEpochError(UnixTime);
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#[derive(Debug, PartialEq, Eq, Copy, Clone)]
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#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "defmt", derive(defmt::Format))]
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#[non_exhaustive]
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pub enum TimestampError {
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InvalidTimeCode { expected: CcsdsTimeCode, found: u8 },
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ByteConversion(ByteConversionError),
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Cds(cds::CdsError),
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Cuc(cuc::CucError),
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CustomEpochNotSupported,
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}
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impl Display for TimestampError {
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fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
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match self {
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TimestampError::InvalidTimeCode { expected, found } => {
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write!(
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f,
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"invalid raw time code value {found} for time code {expected:?}"
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)
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}
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TimestampError::Cds(e) => {
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write!(f, "cds error: {e}")
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}
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TimestampError::Cuc(e) => {
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write!(f, "cuc error: {e}")
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}
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TimestampError::ByteConversion(e) => {
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write!(f, "time stamp: {e}")
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}
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TimestampError::CustomEpochNotSupported => {
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write!(f, "custom epochs are not supported")
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}
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}
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}
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}
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#[cfg(feature = "std")]
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impl Error for TimestampError {
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fn source(&self) -> Option<&(dyn Error + 'static)> {
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match self {
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TimestampError::ByteConversion(e) => Some(e),
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TimestampError::Cds(e) => Some(e),
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TimestampError::Cuc(e) => Some(e),
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_ => None,
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}
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}
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}
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impl From<cds::CdsError> for TimestampError {
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fn from(e: cds::CdsError) -> Self {
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TimestampError::Cds(e)
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}
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}
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impl From<cuc::CucError> for TimestampError {
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fn from(e: cuc::CucError) -> Self {
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TimestampError::Cuc(e)
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}
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}
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#[cfg(feature = "std")]
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pub mod std_mod {
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use crate::time::TimestampError;
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use std::time::SystemTimeError;
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use thiserror::Error;
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#[derive(Debug, Clone, Error)]
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pub enum StdTimestampError {
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#[error("system time error: {0:?}")]
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SystemTime(#[from] SystemTimeError),
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#[error("timestamp error: {0}")]
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Timestamp(#[from] TimestampError),
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}
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}
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#[cfg(feature = "std")]
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pub fn seconds_since_epoch() -> f64 {
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SystemTime::now()
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.duration_since(SystemTime::UNIX_EPOCH)
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.expect("System time generation failed")
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.as_secs_f64()
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}
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/// Convert UNIX days to CCSDS days
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///
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/// - CCSDS epoch: 1958-01-01T00:00:00+00:00
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/// - UNIX Epoch: 1970-01-01T00:00:00+00:00
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#[inline]
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pub const fn unix_to_ccsds_days(unix_days: i64) -> i64 {
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unix_days - DAYS_CCSDS_TO_UNIX as i64
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}
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/// Convert CCSDS days to UNIX days
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///
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/// - CCSDS epoch: 1958-01-01T00:00:00+00:00
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/// - UNIX Epoch: 1970-01-01T00:00:00+00:00
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#[inline]
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pub const fn ccsds_to_unix_days(ccsds_days: i64) -> i64 {
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ccsds_days + DAYS_CCSDS_TO_UNIX as i64
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}
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/// Similar to [unix_to_ccsds_days] but converts the epoch instead, which is the number of elpased
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/// seconds since the CCSDS and UNIX epoch times.
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#[inline]
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pub const fn unix_epoch_to_ccsds_epoch(unix_epoch: i64) -> i64 {
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unix_epoch - (DAYS_CCSDS_TO_UNIX as i64 * SECONDS_PER_DAY as i64)
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}
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#[inline]
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pub const fn ccsds_epoch_to_unix_epoch(ccsds_epoch: i64) -> i64 {
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ccsds_epoch + (DAYS_CCSDS_TO_UNIX as i64 * SECONDS_PER_DAY as i64)
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}
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#[cfg(feature = "std")]
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pub fn ms_of_day_using_sysclock() -> u32 {
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ms_of_day(seconds_since_epoch())
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}
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pub fn ms_of_day(seconds_since_epoch: f64) -> u32 {
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let fraction_ms = seconds_since_epoch - seconds_since_epoch.floor();
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let ms_of_day: u32 = (((seconds_since_epoch.floor() as u32 % SECONDS_PER_DAY) * 1000) as f64
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+ fraction_ms)
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.floor() as u32;
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ms_of_day
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}
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pub trait TimeWriter {
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fn len_written(&self) -> usize;
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/// Generic function to convert write a timestamp into a raw buffer.
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/// Returns the number of written bytes on success.
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fn write_to_bytes(&self, bytes: &mut [u8]) -> Result<usize, TimestampError>;
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#[cfg(feature = "alloc")]
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fn to_vec(&self) -> Result<alloc::vec::Vec<u8>, TimestampError> {
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let mut vec = alloc::vec![0; self.len_written()];
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self.write_to_bytes(&mut vec)?;
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Ok(vec)
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}
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}
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pub trait TimeReader: Sized {
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fn from_bytes(buf: &[u8]) -> Result<Self, TimestampError>;
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}
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/// Trait for generic CCSDS time providers.
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///
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/// The UNIX helper methods and the helper method are not strictly necessary but extremely
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/// practical because they are a very common and simple exchange format for time information.
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/// Therefore, it was decided to keep them in this trait as well.
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pub trait CcsdsTimeProvider {
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fn len_as_bytes(&self) -> usize;
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/// Returns the pfield of the time provider. The pfield can have one or two bytes depending
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/// on the extension bit (first bit). The time provider should returns a tuple where the first
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/// entry denotes the length of the pfield and the second entry is the value of the pfield
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/// in big endian format.
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fn p_field(&self) -> (usize, [u8; 2]);
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fn ccdsd_time_code(&self) -> CcsdsTimeCode;
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fn unix_secs(&self) -> i64;
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fn subsec_nanos(&self) -> u32;
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fn subsec_millis(&self) -> u16 {
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(self.subsec_nanos() / 1_000_000) as u16
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}
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fn unix_time(&self) -> UnixTime {
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UnixTime::new(self.unix_secs(), self.subsec_nanos())
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}
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#[cfg(feature = "chrono")]
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fn chrono_date_time(&self) -> chrono::LocalResult<chrono::DateTime<chrono::Utc>> {
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chrono::Utc.timestamp_opt(self.unix_secs(), self.subsec_nanos())
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}
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#[cfg(feature = "timelib")]
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fn timelib_date_time(&self) -> Result<time::OffsetDateTime, time::error::ComponentRange> {
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Ok(time::OffsetDateTime::from_unix_timestamp(self.unix_secs())?
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+ time::Duration::nanoseconds(self.subsec_nanos().into()))
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}
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}
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/// UNIX time: Elapsed non-leap seconds since 1970-01-01T00:00:00+00:00 UTC.
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///
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/// This is a commonly used time format and can therefore also be used as a generic format to
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/// convert other CCSDS time formats to and from. The subsecond precision is in nanoseconds
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/// similarly to other common time formats and libraries.
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#[derive(Default, Debug, Copy, Clone, PartialEq, Eq)]
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#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "defmt", derive(defmt::Format))]
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pub struct UnixTime {
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secs: i64,
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subsec_nanos: u32,
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}
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impl UnixTime {
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/// The UNIX epoch time: 1970-01-01T00:00:00+00:00 UTC.
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pub const EPOCH: Self = Self {
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secs: 0,
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subsec_nanos: 0,
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};
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/// The minimum possible `UnixTime`.
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pub const MIN: Self = Self {
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secs: i64::MIN,
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subsec_nanos: 0,
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};
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/// The maximum possible `UnixTime`.
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pub const MAX: Self = Self {
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secs: i64::MAX,
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subsec_nanos: NANOS_PER_SECOND - 1,
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};
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/// Returns [None] if the subsecond nanosecond value is invalid (larger than fraction of a
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/// second)
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pub fn new_checked(unix_seconds: i64, subsec_nanos: u32) -> Option<Self> {
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if subsec_nanos >= NANOS_PER_SECOND {
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return None;
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}
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Some(Self::new(unix_seconds, subsec_nanos))
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}
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/// Returns [None] if the subsecond millisecond value is invalid (larger than fraction of a
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/// second)
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pub fn new_subsec_millis_checked(unix_seconds: i64, subsec_millis: u16) -> Option<Self> {
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if subsec_millis >= 1000 {
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return None;
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}
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Self::new_checked(unix_seconds, subsec_millis as u32 * 1_000_000)
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}
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/// This function will panic if the subsecond value is larger than the fraction of a second.
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/// Use [Self::new_checked] if you want to handle this case without a panic.
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pub const fn new(unix_seconds: i64, subsecond_nanos: u32) -> Self {
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if subsecond_nanos >= NANOS_PER_SECOND {
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panic!("invalid subsecond nanos value");
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}
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Self {
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secs: unix_seconds,
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subsec_nanos: subsecond_nanos,
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}
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}
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/// This function will panic if the subsecond value is larger than the fraction of a second.
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/// Use [Self::new_subsec_millis_checked] if you want to handle this case without a panic.
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pub const fn new_subsec_millis(unix_seconds: i64, subsecond_millis: u16) -> Self {
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if subsecond_millis >= 1000 {
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panic!("invalid subsecond millisecond value");
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}
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Self {
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secs: unix_seconds,
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subsec_nanos: subsecond_millis as u32 * 1_000_000,
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}
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}
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pub fn new_only_secs(unix_seconds: i64) -> Self {
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Self {
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secs: unix_seconds,
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subsec_nanos: 0,
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}
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}
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#[inline]
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pub fn subsec_millis(&self) -> u16 {
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(self.subsec_nanos / 1_000_000) as u16
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}
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pub fn subsec_nanos(&self) -> u32 {
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self.subsec_nanos
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}
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#[cfg(feature = "std")]
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pub fn now() -> Result<Self, SystemTimeError> {
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let now = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH)?;
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let epoch = now.as_secs();
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Ok(Self::new(epoch as i64, now.subsec_nanos()))
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}
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#[inline]
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pub fn unix_secs_f64(&self) -> f64 {
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self.secs as f64 + (self.subsec_nanos as f64 / 1_000_000_000.0)
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}
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pub fn as_secs(&self) -> i64 {
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self.secs
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}
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#[cfg(feature = "chrono")]
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pub fn chrono_date_time(&self) -> chrono::LocalResult<chrono::DateTime<chrono::Utc>> {
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Utc.timestamp_opt(self.secs, self.subsec_nanos)
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}
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#[cfg(feature = "timelib")]
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pub fn timelib_date_time(&self) -> Result<time::OffsetDateTime, time::error::ComponentRange> {
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Ok(time::OffsetDateTime::from_unix_timestamp(self.as_secs())?
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+ time::Duration::nanoseconds(self.subsec_nanos().into()))
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}
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// Calculate the difference in milliseconds between two UnixTimestamps
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pub fn diff_in_millis(&self, other: &UnixTime) -> Option<i64> {
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let seconds_difference = self.secs.checked_sub(other.secs)?;
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// Convert seconds difference to milliseconds
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let milliseconds_difference = seconds_difference.checked_mul(1000)?;
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// Calculate the difference in subsecond milliseconds directly
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let subsecond_difference_nanos = self.subsec_nanos as i64 - other.subsec_nanos as i64;
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// Combine the differences
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Some(milliseconds_difference + (subsecond_difference_nanos / 1_000_000))
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}
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}
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#[cfg(feature = "chrono")]
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impl From<chrono::DateTime<chrono::Utc>> for UnixTime {
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fn from(value: chrono::DateTime<chrono::Utc>) -> Self {
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Self::new(value.timestamp(), value.timestamp_subsec_nanos())
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}
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}
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#[cfg(feature = "timelib")]
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impl From<time::OffsetDateTime> for UnixTime {
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fn from(value: time::OffsetDateTime) -> Self {
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Self::new(value.unix_timestamp(), value.nanosecond())
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}
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}
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impl PartialOrd for UnixTime {
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fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
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Some(self.cmp(other))
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}
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}
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impl Ord for UnixTime {
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fn cmp(&self, other: &Self) -> Ordering {
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if self == other {
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return Ordering::Equal;
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}
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match self.secs.cmp(&other.secs) {
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Ordering::Less => return Ordering::Less,
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Ordering::Greater => return Ordering::Greater,
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_ => (),
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}
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match self.subsec_millis().cmp(&other.subsec_millis()) {
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Ordering::Less => {
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return if self.secs < 0 {
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Ordering::Greater
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} else {
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Ordering::Less
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}
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}
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Ordering::Greater => {
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return if self.secs < 0 {
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Ordering::Less
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} else {
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Ordering::Greater
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}
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}
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Ordering::Equal => (),
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}
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Ordering::Equal
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}
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}
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/// Difference between two UNIX timestamps. The [Duration] type can not contain negative durations,
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/// so the sign information is supplied separately.
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#[derive(Clone, Copy, PartialEq, Eq)]
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pub struct StampDiff {
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pub positive_duration: bool,
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pub duration_absolute: Duration,
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}
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impl Sub for UnixTime {
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type Output = Option<StampDiff>;
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fn sub(self, rhs: Self) -> Self::Output {
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let difference = self.diff_in_millis(&rhs)?;
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Some(if difference < 0 {
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StampDiff {
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positive_duration: false,
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duration_absolute: Duration::from_millis(-difference as u64),
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}
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} else {
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StampDiff {
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positive_duration: true,
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duration_absolute: Duration::from_millis(difference as u64),
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}
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})
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}
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}
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fn get_new_stamp_after_addition(current_stamp: &UnixTime, duration: Duration) -> UnixTime {
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let mut new_subsec_nanos = current_stamp.subsec_nanos() + duration.subsec_nanos();
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let mut new_unix_seconds = current_stamp.secs;
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let mut increment_seconds = |value: u32| {
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if new_unix_seconds < 0 {
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new_unix_seconds = new_unix_seconds
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.checked_sub(value.into())
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.expect("new unix seconds would exceed i64::MIN");
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} else {
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new_unix_seconds = new_unix_seconds
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.checked_add(value.into())
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.expect("new unix seconds would exceed i64::MAX");
|
|
}
|
|
};
|
|
if new_subsec_nanos >= 1_000_000_000 {
|
|
new_subsec_nanos -= 1_000_000_000;
|
|
increment_seconds(1);
|
|
}
|
|
increment_seconds(
|
|
duration
|
|
.as_secs()
|
|
.try_into()
|
|
.expect("duration seconds exceeds u32::MAX"),
|
|
);
|
|
UnixTime::new(new_unix_seconds, new_subsec_nanos)
|
|
}
|
|
|
|
/// Please note that this operation will panic on the following conditions:
|
|
///
|
|
/// - Unix seconds after subtraction for stamps before the unix epoch exceeds [i64::MIN].
|
|
/// - Unix seconds after addition exceeds [i64::MAX].
|
|
/// - Seconds from duration to add exceeds [u32::MAX].
|
|
impl AddAssign<Duration> for UnixTime {
|
|
fn add_assign(&mut self, duration: Duration) {
|
|
*self = get_new_stamp_after_addition(self, duration);
|
|
}
|
|
}
|
|
|
|
/// Please note that this operation will panic for the following conditions:
|
|
///
|
|
/// - Unix seconds after subtraction for stamps before the unix epoch exceeds [i64::MIN].
|
|
/// - Unix seconds after addition exceeds [i64::MAX].
|
|
/// - Unix seconds exceeds [u32::MAX].
|
|
impl Add<Duration> for UnixTime {
|
|
type Output = Self;
|
|
|
|
fn add(self, duration: Duration) -> Self::Output {
|
|
get_new_stamp_after_addition(&self, duration)
|
|
}
|
|
}
|
|
|
|
impl Add<Duration> for &UnixTime {
|
|
type Output = UnixTime;
|
|
|
|
fn add(self, duration: Duration) -> Self::Output {
|
|
get_new_stamp_after_addition(self, duration)
|
|
}
|
|
}
|
|
|
|
#[cfg(all(test, feature = "std"))]
|
|
mod tests {
|
|
use alloc::string::ToString;
|
|
use chrono::{Datelike, Timelike};
|
|
use std::{format, println};
|
|
|
|
use super::{cuc::CucError, *};
|
|
|
|
#[allow(dead_code)]
|
|
const UNIX_STAMP_CONST: UnixTime = UnixTime::new(5, 999_999_999);
|
|
#[allow(dead_code)]
|
|
const UNIX_STAMP_CONST_2: UnixTime = UnixTime::new_subsec_millis(5, 999);
|
|
|
|
#[test]
|
|
fn test_days_conversion() {
|
|
assert_eq!(unix_to_ccsds_days(DAYS_CCSDS_TO_UNIX.into()), 0);
|
|
assert_eq!(ccsds_to_unix_days(0), DAYS_CCSDS_TO_UNIX.into());
|
|
}
|
|
|
|
#[test]
|
|
#[cfg_attr(miri, ignore)]
|
|
fn test_get_current_time() {
|
|
let sec_floats = seconds_since_epoch();
|
|
assert!(sec_floats > 0.0);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ms_of_day() {
|
|
let ms = ms_of_day(0.0);
|
|
assert_eq!(ms, 0);
|
|
let ms = ms_of_day(5.0);
|
|
assert_eq!(ms, 5000);
|
|
}
|
|
|
|
#[test]
|
|
#[cfg_attr(miri, ignore)]
|
|
fn test_ccsds_epoch() {
|
|
let now = SystemTime::now()
|
|
.duration_since(SystemTime::UNIX_EPOCH)
|
|
.unwrap();
|
|
let unix_epoch = now.as_secs();
|
|
let ccsds_epoch = unix_epoch_to_ccsds_epoch(now.as_secs() as i64) as u64;
|
|
assert!(ccsds_epoch > unix_epoch);
|
|
assert_eq!((ccsds_epoch - unix_epoch) % SECONDS_PER_DAY as u64, 0);
|
|
let days_diff = (ccsds_epoch - unix_epoch) / SECONDS_PER_DAY as u64;
|
|
assert_eq!(days_diff, -DAYS_CCSDS_TO_UNIX as u64);
|
|
}
|
|
|
|
#[test]
|
|
fn basic_unix_stamp_test() {
|
|
let stamp = UnixTime::new_only_secs(-200);
|
|
assert_eq!(stamp.secs, -200);
|
|
assert_eq!(stamp.subsec_millis(), 0);
|
|
let stamp = UnixTime::new_only_secs(250);
|
|
assert_eq!(stamp.secs, 250);
|
|
assert_eq!(stamp.subsec_millis(), 0);
|
|
}
|
|
|
|
#[test]
|
|
fn basic_float_unix_stamp_test() {
|
|
let stamp = UnixTime::new_subsec_millis_checked(500, 600).unwrap();
|
|
assert_eq!(stamp.secs, 500);
|
|
let subsec_millis = stamp.subsec_millis();
|
|
assert_eq!(subsec_millis, 600);
|
|
println!("{:?}", (500.6 - stamp.unix_secs_f64()).to_string());
|
|
assert!((500.6 - stamp.unix_secs_f64()).abs() < 0.0001);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ord_larger() {
|
|
let stamp0 = UnixTime::new_only_secs(5);
|
|
let stamp1 = UnixTime::new_subsec_millis_checked(5, 500).unwrap();
|
|
let stamp2 = UnixTime::new_only_secs(6);
|
|
assert!(stamp1 > stamp0);
|
|
assert!(stamp2 > stamp0);
|
|
assert!(stamp2 > stamp1);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ord_smaller() {
|
|
let stamp0 = UnixTime::new_only_secs(5);
|
|
let stamp1 = UnixTime::new_subsec_millis_checked(5, 500).unwrap();
|
|
let stamp2 = UnixTime::new_only_secs(6);
|
|
assert!(stamp0 < stamp1);
|
|
assert!(stamp0 < stamp2);
|
|
assert!(stamp1 < stamp2);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ord_larger_neg_numbers() {
|
|
let stamp0 = UnixTime::new_only_secs(-5);
|
|
let stamp1 = UnixTime::new_subsec_millis_checked(-5, 500).unwrap();
|
|
let stamp2 = UnixTime::new_only_secs(-6);
|
|
assert!(stamp0 > stamp1);
|
|
assert!(stamp0 > stamp2);
|
|
assert!(stamp1 > stamp2);
|
|
assert!(stamp1 >= stamp2);
|
|
assert!(stamp0 >= stamp1);
|
|
}
|
|
|
|
#[test]
|
|
fn test_ord_smaller_neg_numbers() {
|
|
let stamp0 = UnixTime::new_only_secs(-5);
|
|
let stamp1 = UnixTime::new_subsec_millis_checked(-5, 500).unwrap();
|
|
let stamp2 = UnixTime::new_only_secs(-6);
|
|
assert!(stamp2 < stamp1);
|
|
assert!(stamp2 < stamp0);
|
|
assert!(stamp1 < stamp0);
|
|
assert!(stamp1 <= stamp0);
|
|
assert!(stamp2 <= stamp1);
|
|
}
|
|
|
|
#[allow(clippy::nonminimal_bool)]
|
|
#[test]
|
|
fn test_eq() {
|
|
let stamp0 = UnixTime::new(5, 0);
|
|
let stamp1 = UnixTime::new_only_secs(5);
|
|
assert_eq!(stamp0, stamp1);
|
|
assert!(stamp0 <= stamp1);
|
|
assert!(stamp0 >= stamp1);
|
|
assert!(!(stamp0 < stamp1));
|
|
assert!(!(stamp0 > stamp1));
|
|
}
|
|
|
|
#[test]
|
|
fn test_addition() {
|
|
let mut stamp0 = UnixTime::new_only_secs(1);
|
|
stamp0 += Duration::from_secs(5);
|
|
assert_eq!(stamp0.as_secs(), 6);
|
|
assert_eq!(stamp0.subsec_millis(), 0);
|
|
let stamp1 = stamp0 + Duration::from_millis(500);
|
|
assert_eq!(stamp1.secs, 6);
|
|
assert_eq!(stamp1.subsec_millis(), 500);
|
|
}
|
|
|
|
#[test]
|
|
fn test_addition_on_ref() {
|
|
let stamp0 = &UnixTime::new_subsec_millis_checked(20, 500).unwrap();
|
|
let stamp1 = stamp0 + Duration::from_millis(2500);
|
|
assert_eq!(stamp1.secs, 23);
|
|
assert_eq!(stamp1.subsec_millis(), 0);
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_dt() {
|
|
let stamp = UnixTime::new_only_secs(0);
|
|
let dt = stamp.chrono_date_time().unwrap();
|
|
assert_eq!(dt.year(), 1970);
|
|
assert_eq!(dt.month(), 1);
|
|
assert_eq!(dt.day(), 1);
|
|
assert_eq!(dt.hour(), 0);
|
|
assert_eq!(dt.minute(), 0);
|
|
assert_eq!(dt.second(), 0);
|
|
}
|
|
|
|
#[test]
|
|
#[cfg_attr(miri, ignore)]
|
|
fn test_from_now() {
|
|
let stamp_now = UnixTime::now().unwrap();
|
|
let dt_now = stamp_now.chrono_date_time().unwrap();
|
|
assert!(dt_now.year() >= 2020);
|
|
}
|
|
|
|
#[test]
|
|
fn test_stamp_diff_positive_0() {
|
|
let stamp_later = UnixTime::new(2, 0);
|
|
let StampDiff {
|
|
positive_duration,
|
|
duration_absolute,
|
|
} = (stamp_later - UnixTime::new(1, 0)).expect("stamp diff error");
|
|
assert!(positive_duration);
|
|
assert_eq!(duration_absolute, Duration::from_secs(1));
|
|
}
|
|
|
|
#[test]
|
|
fn test_stamp_diff_positive_1() {
|
|
let stamp_later = UnixTime::new(3, 800 * 1_000_000);
|
|
let stamp_earlier = UnixTime::new_subsec_millis_checked(1, 900).unwrap();
|
|
let StampDiff {
|
|
positive_duration,
|
|
duration_absolute,
|
|
} = (stamp_later - stamp_earlier).expect("stamp diff error");
|
|
assert!(positive_duration);
|
|
assert_eq!(duration_absolute, Duration::from_millis(1900));
|
|
}
|
|
|
|
#[test]
|
|
fn test_stamp_diff_negative() {
|
|
let stamp_later = UnixTime::new_subsec_millis_checked(3, 800).unwrap();
|
|
let stamp_earlier = UnixTime::new_subsec_millis_checked(1, 900).unwrap();
|
|
let StampDiff {
|
|
positive_duration,
|
|
duration_absolute,
|
|
} = (stamp_earlier - stamp_later).expect("stamp diff error");
|
|
assert!(!positive_duration);
|
|
assert_eq!(duration_absolute, Duration::from_millis(1900));
|
|
}
|
|
|
|
#[test]
|
|
fn test_addition_spillover() {
|
|
let mut stamp0 = UnixTime::new_subsec_millis_checked(1, 900).unwrap();
|
|
stamp0 += Duration::from_millis(100);
|
|
assert_eq!(stamp0.secs, 2);
|
|
assert_eq!(stamp0.subsec_millis(), 0);
|
|
stamp0 += Duration::from_millis(1100);
|
|
assert_eq!(stamp0.secs, 3);
|
|
assert_eq!(stamp0.subsec_millis(), 100);
|
|
}
|
|
|
|
#[test]
|
|
fn test_cuc_error_printout() {
|
|
let cuc_error = CucError::InvalidCounterWidth(12);
|
|
let stamp_error = TimestampError::from(cuc_error);
|
|
assert_eq!(stamp_error.to_string(), format!("cuc error: {cuc_error}"));
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "timelib")]
|
|
fn test_unix_stamp_as_timelib_datetime() {
|
|
let stamp_epoch = UnixTime::EPOCH;
|
|
let timelib_dt = stamp_epoch.timelib_date_time().unwrap();
|
|
assert_eq!(timelib_dt.year(), 1970);
|
|
assert_eq!(timelib_dt.month(), time::Month::January);
|
|
assert_eq!(timelib_dt.day(), 1);
|
|
assert_eq!(timelib_dt.hour(), 0);
|
|
assert_eq!(timelib_dt.minute(), 0);
|
|
assert_eq!(timelib_dt.second(), 0);
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "timelib")]
|
|
fn test_unix_stamp_from_timelib_datetime() {
|
|
let timelib_dt = time::OffsetDateTime::UNIX_EPOCH;
|
|
let unix_time = UnixTime::from(timelib_dt);
|
|
let timelib_converted_back = unix_time.timelib_date_time().unwrap();
|
|
assert_eq!(timelib_dt, timelib_converted_back);
|
|
}
|
|
}
|