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// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
//! This module contains types and implementations for the Korean Dangi calendar.
//!
//! ```rust
//! use icu::calendar::cal::Dangi;
//! use icu::calendar::Date;
//!
//! let dangi = Dangi::new();
//! let dangi_date = Date::try_new_dangi_with_calendar(2023, 6, 6, dangi)
//! .expect("Failed to initialize Dangi Date instance.");
//!
//! assert_eq!(dangi_date.cyclic_year().related_iso, 2023);
//! assert_eq!(dangi_date.cyclic_year().year, 40);
//! assert_eq!(dangi_date.month().ordinal, 6);
//! assert_eq!(dangi_date.day_of_month().0, 6);
//! ```
use crate::cal::chinese_based::{ChineseBasedPrecomputedData, ChineseBasedWithDataLoading};
use crate::cal::iso::{Iso, IsoDateInner};
use crate::calendar_arithmetic::PrecomputedDataSource;
use crate::calendar_arithmetic::{ArithmeticDate, CalendarArithmetic};
use crate::error::DateError;
use crate::provider::chinese_based::CalendarDangiV1;
use crate::types::CyclicYear;
use crate::AsCalendar;
use crate::{types, Calendar, Date};
use calendrical_calculations::chinese_based;
use calendrical_calculations::rata_die::RataDie;
use core::cmp::Ordering;
use icu_provider::prelude::*;
///
/// The Dangi Calendar is a lunisolar calendar used traditionally in North and South Korea.
/// It is often used today to track important cultural events and holidays like Seollal
/// (Korean lunar new year). It is similar to the Chinese lunar calendar (see [`Chinese`](super::Chinese)),
/// except that observations are based in Korea (currently UTC+9) rather than China (UTC+8).
/// This can cause some differences; for example, 2012 was a leap year, but in the Dangi
/// calendar the leap month was 3, while in the Chinese calendar the leap month was 4.
///
/// This calendar is currently in a preview state: formatting for this calendar is not
/// going to be perfect.
///
/// ```rust
/// use icu::calendar::cal::{Chinese, Dangi};
/// use icu::calendar::Date;
/// use tinystr::tinystr;
///
/// let iso_a = Date::try_new_iso(2012, 4, 23).unwrap();
/// let dangi_a = iso_a.to_calendar(Dangi::new());
/// let chinese_a = iso_a.to_calendar(Chinese::new());
///
/// assert_eq!(dangi_a.month().standard_code.0, tinystr!(4, "M03L"));
/// assert_eq!(chinese_a.month().standard_code.0, tinystr!(4, "M04"));
///
/// let iso_b = Date::try_new_iso(2012, 5, 23).unwrap();
/// let dangi_b = iso_b.to_calendar(Dangi::new());
/// let chinese_b = iso_b.to_calendar(Chinese::new());
///
/// assert_eq!(dangi_b.month().standard_code.0, tinystr!(4, "M04"));
/// assert_eq!(chinese_b.month().standard_code.0, tinystr!(4, "M04L"));
/// ```
/// # Era codes
///
/// This calendar does not use era codes.
///
/// # Month codes
///
/// This calendar is a lunisolar calendar. It supports regular month codes `"M01" - "M12"` as well
/// as leap month codes `"M01L" - "M12L"`.
#[derive(Clone, Debug, Default)]
pub struct Dangi {
data: Option<DataPayload<CalendarDangiV1>>,
}
/// The inner date type used for representing [`Date`]s of [`Dangi`]. See [`Date`] and [`Dangi`] for more detail.
#[derive(Debug, Eq, PartialEq, PartialOrd, Ord)]
pub struct DangiDateInner(ArithmeticDate<Dangi>);
// we want these impls without the `C: Copy/Clone` bounds
impl Copy for DangiDateInner {}
impl Clone for DangiDateInner {
fn clone(&self) -> Self {
*self
}
}
// These impls just make custom derives on types containing C
// work. They're basically no-ops
impl PartialEq for Dangi {
fn eq(&self, _: &Self) -> bool {
true
}
}
impl Eq for Dangi {}
#[allow(clippy::non_canonical_partial_ord_impl)] // this is intentional
impl PartialOrd for Dangi {
fn partial_cmp(&self, _: &Self) -> Option<Ordering> {
Some(Ordering::Equal)
}
}
impl Ord for Dangi {
fn cmp(&self, _: &Self) -> Ordering {
Ordering::Equal
}
}
impl Dangi {
/// Creates a new [`Dangi`] with some precomputed calendrical calculations.
///
/// ✨ *Enabled with the `compiled_data` Cargo feature.*
///
/// [📚 Help choosing a constructor](icu_provider::constructors)
#[cfg(feature = "compiled_data")]
pub const fn new() -> Self {
Self {
data: Some(DataPayload::from_static_ref(
crate::provider::Baked::SINGLETON_CALENDAR_DANGI_V1,
)),
}
}
icu_provider::gen_buffer_data_constructors!(() -> error: DataError,
functions: [
new: skip,
try_new_with_buffer_provider,
try_new_unstable,
Self,
]);
#[doc = icu_provider::gen_buffer_unstable_docs!(UNSTABLE, Self::new)]
pub fn try_new_unstable<D: DataProvider<CalendarDangiV1> + ?Sized>(
provider: &D,
) -> Result<Self, DataError> {
Ok(Self {
data: Some(provider.load(Default::default())?.payload),
})
}
/// Construct a new [`Dangi`] without any precomputed calendrical calculations.
pub fn new_always_calculating() -> Self {
Dangi { data: None }
}
pub(crate) const DEBUG_NAME: &'static str = "Dangi";
}
impl crate::cal::scaffold::UnstableSealed for Dangi {}
impl Calendar for Dangi {
type DateInner = DangiDateInner;
type Year = CyclicYear;
fn from_codes(
&self,
era: Option<&str>,
year: i32,
month_code: crate::types::MonthCode,
day: u8,
) -> Result<Self::DateInner, DateError> {
match era {
None => {}
_ => return Err(DateError::UnknownEra),
}
let year = self.get_precomputed_data().load_or_compute_info(year);
let Some(month) = year.parse_month_code(month_code) else {
return Err(DateError::UnknownMonthCode(month_code));
};
year.validate_md(month, day)?;
Ok(DangiDateInner(ArithmeticDate::new_unchecked(
year, month, day,
)))
}
fn from_rata_die(&self, rd: RataDie) -> Self::DateInner {
let iso = Iso.from_rata_die(rd);
let y = self
.get_precomputed_data()
.load_or_compute_info_for_rd(rd, iso.0);
let (m, d) = y.md_from_rd(rd);
DangiDateInner(ArithmeticDate::new_unchecked(y, m, d))
}
fn to_rata_die(&self, date: &Self::DateInner) -> RataDie {
date.0.year.rd_from_md(date.0.month, date.0.day)
}
fn from_iso(&self, iso: IsoDateInner) -> Self::DateInner {
let rd = Iso.to_rata_die(&iso);
let y = self
.get_precomputed_data()
.load_or_compute_info_for_rd(rd, iso.0);
let (m, d) = y.md_from_rd(rd);
DangiDateInner(ArithmeticDate::new_unchecked(y, m, d))
}
fn to_iso(&self, date: &Self::DateInner) -> IsoDateInner {
Iso.from_rata_die(self.to_rata_die(date))
}
fn months_in_year(&self, date: &Self::DateInner) -> u8 {
date.0.months_in_year()
}
fn days_in_year(&self, date: &Self::DateInner) -> u16 {
date.0.days_in_year()
}
fn days_in_month(&self, date: &Self::DateInner) -> u8 {
date.0.days_in_month()
}
fn offset_date(&self, date: &mut Self::DateInner, offset: crate::DateDuration<Self>) {
date.0.offset_date(offset, &self.get_precomputed_data());
}
fn until(
&self,
date1: &Self::DateInner,
date2: &Self::DateInner,
_calendar2: &Self,
largest_unit: crate::DateDurationUnit,
smallest_unit: crate::DateDurationUnit,
) -> crate::DateDuration<Self> {
date1.0.until(date2.0, largest_unit, smallest_unit)
}
fn debug_name(&self) -> &'static str {
Self::DEBUG_NAME
}
fn year_info(&self, date: &Self::DateInner) -> Self::Year {
let year = date.0.year;
CyclicYear {
year: (year.related_iso as i64 - 4).rem_euclid(60) as u8 + 1,
related_iso: year.related_iso,
}
}
fn extended_year(&self, date: &Self::DateInner) -> i32 {
chinese_based::extended_from_iso::<chinese_based::Dangi>(date.0.year.related_iso)
}
fn is_in_leap_year(&self, date: &Self::DateInner) -> bool {
Self::provided_year_is_leap(date.0.year)
}
fn month(&self, date: &Self::DateInner) -> crate::types::MonthInfo {
date.0.year.month(date.0.month)
}
fn day_of_month(&self, date: &Self::DateInner) -> crate::types::DayOfMonth {
date.0.day_of_month()
}
fn day_of_year(&self, date: &Self::DateInner) -> crate::types::DayOfYear {
types::DayOfYear(date.0.year.day_of_year(date.0.month, date.0.day))
}
fn calendar_algorithm(&self) -> Option<crate::preferences::CalendarAlgorithm> {
Some(crate::preferences::CalendarAlgorithm::Dangi)
}
}
impl<A: AsCalendar<Calendar = Dangi>> Date<A> {
/// Construct a new Dangi date from a `year`, `month`, and `day`.
/// `year` represents the [ISO](crate::Iso) year that roughly matches the Dangi year;
/// `month` represents the month of the year ordinally (ex. if it is a leap year, the last month will be 13, not 12);
/// `day` indicates day of month.
///
/// This date will not use any precomputed calendrical calculations,
/// one that loads such data from a provider will be added in the future (#3933)
///
/// ```rust
/// use icu::calendar::cal::Dangi;
/// use icu::calendar::Date;
///
/// let dangi = Dangi::new();
///
/// let date_dangi = Date::try_new_dangi_with_calendar(2023, 6, 18, dangi)
/// .expect("Failed to initialize Dangi Date instance.");
///
/// assert_eq!(date_dangi.cyclic_year().related_iso, 2023);
/// assert_eq!(date_dangi.cyclic_year().year, 40);
/// assert_eq!(date_dangi.month().ordinal, 6);
/// assert_eq!(date_dangi.day_of_month().0, 18);
/// ```
pub fn try_new_dangi_with_calendar(
related_iso_year: i32,
month: u8,
day: u8,
calendar: A,
) -> Result<Date<A>, DateError> {
let year = calendar
.as_calendar()
.get_precomputed_data()
.load_or_compute_info(related_iso_year);
year.validate_md(month, day)?;
Ok(Date::from_raw(
DangiDateInner(ArithmeticDate::new_unchecked(year, month, day)),
calendar,
))
}
}
impl ChineseBasedWithDataLoading for Dangi {
type CB = calendrical_calculations::chinese_based::Dangi;
fn get_precomputed_data(&self) -> ChineseBasedPrecomputedData<Self::CB> {
ChineseBasedPrecomputedData::new(self.data.as_ref().map(|d| d.get()))
}
}
#[cfg(test)]
mod test {
use super::*;
use crate::cal::Chinese;
use calendrical_calculations::rata_die::RataDie;
/// Run a test twice, with two calendars
fn do_twice(
dangi_calculating: &Dangi,
dangi_cached: &Dangi,
test: impl Fn(crate::Ref<Dangi>, &'static str),
) {
test(crate::Ref(dangi_calculating), "calculating");
test(crate::Ref(dangi_cached), "cached");
}
fn check_cyclic_and_rel_iso(year: i32) {
let iso = Date::try_new_iso(year, 6, 6).unwrap();
let chinese = iso.to_calendar(Chinese::new_always_calculating());
let dangi = iso.to_calendar(Dangi::new_always_calculating());
let chinese_year = chinese.cyclic_year();
let korean_year = dangi.cyclic_year();
assert_eq!(
chinese_year, korean_year,
"Cyclic year failed for year: {year}"
);
let chinese_rel_iso = chinese_year.related_iso;
let korean_rel_iso = korean_year.related_iso;
assert_eq!(
chinese_rel_iso, korean_rel_iso,
"Rel. ISO year equality failed for year: {year}"
);
assert_eq!(korean_rel_iso, year, "Dangi Rel. ISO failed!");
}
#[test]
fn test_cyclic_same_as_chinese_near_present_day() {
for year in 1923..=2123 {
check_cyclic_and_rel_iso(year);
}
}
#[test]
fn test_cyclic_same_as_chinese_near_rd_zero() {
for year in -100..=100 {
check_cyclic_and_rel_iso(year);
}
}
#[test]
fn test_iso_to_dangi_roundtrip() {
let mut rd = -1963020;
let max_rd = 1963020;
let mut iters = 0;
let max_iters = 560;
let dangi_calculating = Dangi::new_always_calculating();
let dangi_cached = Dangi::new();
while rd < max_rd && iters < max_iters {
let rata_die = RataDie::new(rd);
let iso = Date::from_rata_die(rata_die, Iso);
do_twice(&dangi_calculating, &dangi_cached, |dangi, calendar_type| {
let korean = iso.to_calendar(dangi);
let result = korean.to_calendar(Iso);
assert_eq!(
iso, result,
"[{calendar_type}] Failed roundtrip ISO -> Dangi -> ISO for RD: {rd}"
);
});
rd += 7043;
iters += 1;
}
}
#[test]
fn test_dangi_consistent_with_icu() {
// Test cases for this test are derived from existing ICU Intl.DateTimeFormat. If there is a bug in ICU,
// these test cases may be affected, and this calendar's output may not be entirely valid.
// There are a number of test cases which do not match ICU for dates very far in the past or future,
// see #3709.
#[derive(Debug)]
struct TestCase {
iso_year: i32,
iso_month: u8,
iso_day: u8,
expected_rel_iso: i32,
expected_cyclic: u8,
expected_month: u8,
expected_day: u8,
}
let cases = [
TestCase {
// #3709: This test case fails to match ICU
iso_year: 4321,
iso_month: 1,
iso_day: 23,
expected_rel_iso: 4320,
expected_cyclic: 57,
expected_month: 13,
expected_day: 12,
},
TestCase {
iso_year: 3649,
iso_month: 9,
iso_day: 20,
expected_rel_iso: 3649,
expected_cyclic: 46,
expected_month: 9,
expected_day: 1,
},
TestCase {
iso_year: 3333,
iso_month: 3,
iso_day: 3,
expected_rel_iso: 3333,
expected_cyclic: 30,
expected_month: 1,
expected_day: 25,
},
TestCase {
iso_year: 3000,
iso_month: 3,
iso_day: 30,
expected_rel_iso: 3000,
expected_cyclic: 57,
expected_month: 3,
expected_day: 3,
},
TestCase {
iso_year: 2772,
iso_month: 7,
iso_day: 27,
expected_rel_iso: 2772,
expected_cyclic: 9,
expected_month: 7,
expected_day: 5,
},
TestCase {
iso_year: 2525,
iso_month: 2,
iso_day: 25,
expected_rel_iso: 2525,
expected_cyclic: 2,
expected_month: 2,
expected_day: 3,
},
TestCase {
iso_year: 2345,
iso_month: 3,
iso_day: 21,
expected_rel_iso: 2345,
expected_cyclic: 2,
expected_month: 2,
expected_day: 17,
},
TestCase {
iso_year: 2222,
iso_month: 2,
iso_day: 22,
expected_rel_iso: 2222,
expected_cyclic: 59,
expected_month: 1,
expected_day: 11,
},
TestCase {
iso_year: 2167,
iso_month: 6,
iso_day: 22,
expected_rel_iso: 2167,
expected_cyclic: 4,
expected_month: 5,
expected_day: 6,
},
TestCase {
iso_year: 2121,
iso_month: 2,
iso_day: 12,
expected_rel_iso: 2120,
expected_cyclic: 17,
expected_month: 13,
expected_day: 25,
},
TestCase {
iso_year: 2080,
iso_month: 12,
iso_day: 31,
expected_rel_iso: 2080,
expected_cyclic: 37,
expected_month: 12,
expected_day: 21,
},
TestCase {
iso_year: 2030,
iso_month: 3,
iso_day: 20,
expected_rel_iso: 2030,
expected_cyclic: 47,
expected_month: 2,
expected_day: 17,
},
TestCase {
iso_year: 2027,
iso_month: 2,
iso_day: 7,
expected_rel_iso: 2027,
expected_cyclic: 44,
expected_month: 1,
expected_day: 1,
},
TestCase {
iso_year: 2023,
iso_month: 7,
iso_day: 1,
expected_rel_iso: 2023,
expected_cyclic: 40,
expected_month: 6,
expected_day: 14,
},
TestCase {
iso_year: 2022,
iso_month: 3,
iso_day: 1,
expected_rel_iso: 2022,
expected_cyclic: 39,
expected_month: 1,
expected_day: 29,
},
TestCase {
iso_year: 2021,
iso_month: 2,
iso_day: 1,
expected_rel_iso: 2020,
expected_cyclic: 37,
expected_month: 13,
expected_day: 20,
},
TestCase {
iso_year: 2016,
iso_month: 3,
iso_day: 30,
expected_rel_iso: 2016,
expected_cyclic: 33,
expected_month: 2,
expected_day: 22,
},
TestCase {
iso_year: 2016,
iso_month: 7,
iso_day: 30,
expected_rel_iso: 2016,
expected_cyclic: 33,
expected_month: 6,
expected_day: 27,
},
TestCase {
iso_year: 2015,
iso_month: 9,
iso_day: 22,
expected_rel_iso: 2015,
expected_cyclic: 32,
expected_month: 8,
expected_day: 10,
},
TestCase {
iso_year: 2013,
iso_month: 10,
iso_day: 1,
expected_rel_iso: 2013,
expected_cyclic: 30,
expected_month: 8,
expected_day: 27,
},
TestCase {
iso_year: 2010,
iso_month: 2,
iso_day: 1,
expected_rel_iso: 2009,
expected_cyclic: 26,
expected_month: 13,
expected_day: 18,
},
TestCase {
iso_year: 2000,
iso_month: 8,
iso_day: 30,
expected_rel_iso: 2000,
expected_cyclic: 17,
expected_month: 8,
expected_day: 2,
},
TestCase {
iso_year: 1990,
iso_month: 11,
iso_day: 11,
expected_rel_iso: 1990,
expected_cyclic: 7,
expected_month: 10,
expected_day: 24,
},
TestCase {
iso_year: 1970,
iso_month: 6,
iso_day: 10,
expected_rel_iso: 1970,
expected_cyclic: 47,
expected_month: 5,
expected_day: 7,
},
TestCase {
iso_year: 1970,
iso_month: 1,
iso_day: 1,
expected_rel_iso: 1969,
expected_cyclic: 46,
expected_month: 11,
expected_day: 24,
},
TestCase {
iso_year: 1941,
iso_month: 12,
iso_day: 7,
expected_rel_iso: 1941,
expected_cyclic: 18,
expected_month: 11,
expected_day: 19,
},
TestCase {
iso_year: 1812,
iso_month: 5,
iso_day: 4,
expected_rel_iso: 1812,
expected_cyclic: 9,
expected_month: 3,
expected_day: 24,
},
TestCase {
iso_year: 1655,
iso_month: 6,
iso_day: 15,
expected_rel_iso: 1655,
expected_cyclic: 32,
expected_month: 5,
expected_day: 12,
},
TestCase {
iso_year: 1333,
iso_month: 3,
iso_day: 10,
expected_rel_iso: 1333,
expected_cyclic: 10,
expected_month: 2,
expected_day: 16,
},
TestCase {
iso_year: 1000,
iso_month: 10,
iso_day: 10,
expected_rel_iso: 1000,
expected_cyclic: 37,
expected_month: 9,
expected_day: 5,
},
TestCase {
iso_year: 842,
iso_month: 2,
iso_day: 15,
expected_rel_iso: 841,
expected_cyclic: 58,
expected_month: 13,
expected_day: 28,
},
TestCase {
iso_year: 101,
iso_month: 1,
iso_day: 10,
expected_rel_iso: 100,
expected_cyclic: 37,
expected_month: 12,
expected_day: 24,
},
TestCase {
iso_year: -1,
iso_month: 3,
iso_day: 28,
expected_rel_iso: -1,
expected_cyclic: 56,
expected_month: 2,
expected_day: 25,
},
TestCase {
iso_year: -3,
iso_month: 2,
iso_day: 28,
expected_rel_iso: -3,
expected_cyclic: 54,
expected_month: 2,
expected_day: 5,
},
TestCase {
iso_year: -365,
iso_month: 7,
iso_day: 24,
expected_rel_iso: -365,
expected_cyclic: 52,
expected_month: 6,
expected_day: 24,
},
TestCase {
iso_year: -999,
iso_month: 9,
iso_day: 9,
expected_rel_iso: -999,
expected_cyclic: 18,
expected_month: 7,
expected_day: 27,
},
TestCase {
iso_year: -1500,
iso_month: 1,
iso_day: 5,
expected_rel_iso: -1501,
expected_cyclic: 56,
expected_month: 12,
expected_day: 2,
},
TestCase {
iso_year: -2332,
iso_month: 3,
iso_day: 1,
expected_rel_iso: -2332,
expected_cyclic: 5,
expected_month: 1,
expected_day: 16,
},
TestCase {
iso_year: -2332,
iso_month: 2,
iso_day: 15,
expected_rel_iso: -2332,
expected_cyclic: 5,
expected_month: 1,
expected_day: 1,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -2332,
iso_month: 2,
iso_day: 14,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 13,
expected_day: 30,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -2332,
iso_month: 1,
iso_day: 17,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 13,
expected_day: 2,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -2332,
iso_month: 1,
iso_day: 16,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 13,
expected_day: 1,
},
TestCase {
iso_year: -2332,
iso_month: 1,
iso_day: 15,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 12,
expected_day: 29,
},
TestCase {
iso_year: -2332,
iso_month: 1,
iso_day: 1,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 12,
expected_day: 15,
},
TestCase {
iso_year: -2333,
iso_month: 1,
iso_day: 16,
expected_rel_iso: -2334,
expected_cyclic: 3,
expected_month: 12,
expected_day: 19,
},
TestCase {
iso_year: -2333,
iso_month: 1,
iso_day: 27,
expected_rel_iso: -2333,
expected_cyclic: 4,
expected_month: 1,
expected_day: 1,
},
TestCase {
iso_year: -2333,
iso_month: 1,
iso_day: 26,
expected_rel_iso: -2334,
expected_cyclic: 3,
expected_month: 12,
expected_day: 29,
},
TestCase {
iso_year: -2600,
iso_month: 9,
iso_day: 16,
expected_rel_iso: -2600,
expected_cyclic: 37,
expected_month: 8,
expected_day: 16,
},
TestCase {
iso_year: -2855,
iso_month: 2,
iso_day: 3,
expected_rel_iso: -2856,
expected_cyclic: 21,
expected_month: 12,
expected_day: 30,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -3000,
iso_month: 5,
iso_day: 15,
expected_rel_iso: -3000,
expected_cyclic: 57,
expected_month: 4,
expected_day: 1,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -3649,
iso_month: 9,
iso_day: 20,
expected_rel_iso: -3649,
expected_cyclic: 8,
expected_month: 8,
expected_day: 10,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -3649,
iso_month: 3,
iso_day: 30,
expected_rel_iso: -3649,
expected_cyclic: 8,
expected_month: 2,
expected_day: 14,
},
TestCase {
// #3709: This test case fails to match ICU
iso_year: -3650,
iso_month: 3,
iso_day: 30,
expected_rel_iso: -3650,
expected_cyclic: 7,
expected_month: 3,
expected_day: 3,
},
];
let dangi_calculating = Dangi::new_always_calculating();
let dangi_cached = Dangi::new();
for case in cases {
let iso = Date::try_new_iso(case.iso_year, case.iso_month, case.iso_day).unwrap();
do_twice(&dangi_calculating, &dangi_cached, |dangi, calendar_type| {
let dangi = iso.to_calendar(dangi);
let dangi_cyclic = dangi.cyclic_year();
let dangi_month = dangi.month().ordinal;
let dangi_day = dangi.day_of_month().0;
assert_eq!(
dangi_cyclic.related_iso, case.expected_rel_iso,
"[{calendar_type}] Related ISO failed for test case: {case:?}"
);
assert_eq!(
dangi_cyclic.year, case.expected_cyclic,
"[{calendar_type}] Cyclic year failed for test case: {case:?}"
);
assert_eq!(
dangi_month, case.expected_month,
"[{calendar_type}] Month failed for test case: {case:?}"
);
assert_eq!(
dangi_day, case.expected_day,
"[{calendar_type}] Day failed for test case: {case:?}"
);
});
}
}
}