OxideJS/crates/oxide_vm/tests/builtins_temporal_tests.rs

use oxide_compiler::compiler::Compiler;
use oxide_vm::vm::Vm;

fn eval(vm: &mut Vm, source: &str) -> Result<oxide_types::value::JsValue, String> {
    let allocator = oxide_parser::Allocator::default();
    let program = oxide_parser::parse(&allocator, source).map_err(|e| format!("Parse error: {:?}", e))?;
    let module = Compiler::new().compile(&program).map_err(|e| format!("Compile error: {}", e))?;
    vm.run(&module)
}

fn str_val(vm: &Vm, val: oxide_types::value::JsValue) -> String {
    vm.lookup_str(val).unwrap_or_default()
}

fn num(vm: &mut Vm, source: &str) -> f64 {
    let r = eval(vm, source).unwrap();
    if r.is_double() {
        r.as_double()
    } else {
        r.as_int() as f64
    }
}

// -- Temporal 命名空间 --

#[test]
fn temporal_is_object() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "typeof Temporal").unwrap();
    assert_eq!(str_val(&vm, r), "object");
}

#[test]
fn temporal_now_time_zone_id_is_utc() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "Temporal.Now.timeZoneId()").unwrap();
    assert_eq!(str_val(&vm, r), "UTC");
}

#[test]
fn temporal_now_instant_returns_instant() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "Temporal.Now.instant() instanceof Temporal.Instant").unwrap();
    assert!(r.as_bool());
}

#[test]
fn temporal_now_instant_epoch_is_positive() {
    let mut vm = Vm::new();
    let r = num(&mut vm, "Temporal.Now.instant().epochMilliseconds");
    assert!(r > 1_500_000_000_000.0);
}

#[test]
fn temporal_now_is_namespace_not_constructor() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "typeof Temporal.Now").unwrap();
    assert_eq!(str_val(&vm, r), "object");
}

// -- Temporal.Instant --

#[test]
fn instant_from_iso_string() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "Temporal.Instant.from('2024-01-01T00:00:00Z').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2024-01-01T00:00:00Z");
}

#[test]
fn instant_epoch_seconds() {
    let mut vm = Vm::new();
    assert_eq!(num(&mut vm, "Temporal.Instant.from('2024-01-01T00:00:00Z').epochSeconds"), 1704067200.0);
}

#[test]
fn instant_epoch_milliseconds() {
    let mut vm = Vm::new();
    assert_eq!(
        num(&mut vm, "Temporal.Instant.from('2024-01-01T00:00:00Z').epochMilliseconds"),
        1704067200000.0
    );
}

#[test]
fn instant_epoch_nanoseconds() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "Temporal.Instant.from('2024-01-01T00:00:00Z').epochNanoseconds === 1704067200000000000n",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_from_epoch_milliseconds_is_exact() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "Temporal.Instant.fromEpochMilliseconds(-217175010876).epochNanoseconds === -217175010876000000n",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_from_epoch_nanoseconds_is_exact() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "Temporal.Instant.fromEpochNanoseconds(217175010123456789n).epochNanoseconds === 217175010123456789n
            && Temporal.Instant.fromEpochNanoseconds(-217175010876543211n).epochMilliseconds === -217175010877",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_equals_compares_exact_epoch_nanoseconds() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "Temporal.Instant.fromEpochNanoseconds(217175010123456789n)
            .equals(Temporal.Instant.fromEpochMilliseconds(217175010123))",
    )
    .unwrap();
    assert!(!r.as_bool());
}

#[test]
fn instant_compare_accepts_instances_strings_and_annotations() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "Temporal.Instant.compare('1970-01-01T00:00Z[UTC]', new Temporal.Instant(0n)) === 0
            && Temporal.Instant.compare('1969-12-31T23:00+00:00', new Temporal.Instant(0n)) === -1
            && Temporal.Instant.compare('1970-01-01T01:00+00:00', new Temporal.Instant(0n)) === 1",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_add_and_subtract_are_exact() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = Temporal.Instant.fromEpochNanoseconds(1582966647747612578n);
         i.add({hours: 1, microseconds: 9007199254740991}).epochNanoseconds === 10590169502488603578n
           && i.subtract('PT1.03125H').epochNanoseconds === 1582962935247612578n",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_add_ignores_receiver_subclass_for_result() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "class Sub extends Temporal.Instant { constructor(value) { super(value); } }
         let result = new Sub(10n).add({nanoseconds: 5});
         result instanceof Temporal.Instant && !(result instanceof Sub) && result.epochNanoseconds === 15n",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_arithmetic_rejects_date_units_and_out_of_range_results() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let max = Temporal.Instant.fromEpochNanoseconds(8640000000000000000000n);
         (() => { try { max.add({nanoseconds: 1}); return false } catch (e) { return e instanceof RangeError } })()
           && (() => { try { max.subtract({days: 1}); return false } catch (e) { return e instanceof RangeError } })()",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_round_supports_all_rounding_directions() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = new Temporal.Instant(-1500n);
         i.round({smallestUnit:'microsecond', roundingMode:'floor'}).epochNanoseconds === -2000n
           && i.round({smallestUnit:'microsecond', roundingMode:'ceil'}).epochNanoseconds === -1000n
           && i.round({smallestUnit:'microsecond', roundingMode:'halfFloor'}).epochNanoseconds === -2000n
           && i.round({smallestUnit:'microsecond', roundingMode:'halfCeil'}).epochNanoseconds === -1000n
           && i.round({smallestUnit:'microsecond', roundingMode:'halfEven'}).epochNanoseconds === -2000n",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_round_validates_increment_and_accepts_shorthand() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = new Temporal.Instant(123456789n);
         i.round('microseconds').epochNanoseconds === 123457000n
           && i.round({smallestUnit:'nanosecond', roundingIncrement:2.5, roundingMode:'expand'}).epochNanoseconds === 123456790n
           && (() => { try { i.round({smallestUnit:'hour', roundingIncrement:7}); return false } catch (e) { return e instanceof RangeError } })()",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_round_accepts_plural_units_inside_callbacks() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = new Temporal.Instant(1000000000123456789n), ok = true;
         ['hour','minute','second','millisecond','microsecond','nanosecond'].forEach(unit => {
           ok = ok && i.round({smallestUnit:unit}).equals(i.round({smallestUnit:`${unit}s`}));
         });
         ok",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_round_handles_shorthand_callback_parameters() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = new Temporal.Instant(1n), shorthand = true;
         ['hour'].forEach(smallestUnit => {
           shorthand = i.round({smallestUnit}).equals(i.round(smallestUnit));
         });
         shorthand",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_round_handles_nested_destructured_callback_captures() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let i = new Temporal.Instant(1n);
         let pairs = [['hour', [1, 2]]], captured = true;
         pairs.forEach(([unit, increments]) => {
           increments.forEach(increment => {
             captured = captured && i.round({smallestUnit: unit, roundingIncrement: increment}) instanceof Temporal.Instant;
           });
         });
         captured",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_until_and_since_balance_exact_differences() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let earlier = new Temporal.Instant(1000000000000000000n);
         let later = new Temporal.Instant(1000090061987654321n);
         let exact = earlier.until(later);
         let hours = later.since(earlier, { largestUnit: 'hours' });
         exact.seconds === 90061 && exact.milliseconds === 987
           && exact.microseconds === 654 && exact.nanoseconds === 321
           && hours.hours === 25 && hours.minutes === 1 && hours.seconds === 1
           && hours.milliseconds === 987 && hours.microseconds === 654 && hours.nanoseconds === 321",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_difference_rounds_signed_values_and_validates_units() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let zero = new Temporal.Instant(0n), value = new Temporal.Instant(7199000000000n);
         let positive = zero.until(value, { largestUnit: 'hours', smallestUnit: 'minutes', roundingMode: 'expand' });
         let negative = zero.since(value, { largestUnit: 'hours', smallestUnit: 'minutes', roundingMode: 'expand' });
         positive.hours === 2 && positive.minutes === 0
           && negative.hours === -2 && negative.minutes === 0
           && (() => { try { zero.until(value, { largestUnit: 'seconds', smallestUnit: 'hours' }); return false }
                        catch (e) { return e instanceof RangeError } })()
           && (() => { try { zero.until(value, { smallestUnit: 'minutes', roundingIncrement: 60 }); return false }
                        catch (e) { return e instanceof RangeError } })()",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_to_string_supports_precision_rounding_and_offsets() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let instant = new Temporal.Instant(1000000000123987500n);
         instant.toString({smallestUnit:'microsecond', roundingMode:'halfEven'}) === '2001-09-09T01:46:40.123988Z'
           && instant.toString({fractionalSecondDigits:3}) === '2001-09-09T01:46:40.123Z'
           && new Temporal.Instant(0n).toString({timeZone:'-05:00'}) === '1969-12-31T19:00:00-05:00'
           && new Temporal.Instant(999999960000000000n).toString({smallestUnit:'minute'}) === '2001-09-09T01:46Z'",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_json_and_locale_string_use_default_iso_output() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let instant = new Temporal.Instant(30123400000n);
         instant.toJSON({get ignored(){throw new Error()}}) === '1970-01-01T00:00:30.1234Z'
           && typeof instant.toLocaleString('en', {dateStyle:'short'}) === 'string'",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_to_string_tag_has_temporal_descriptor() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let descriptor = Object.getOwnPropertyDescriptor(Temporal.Instant.prototype, Symbol.toStringTag);
         Object.prototype.toString.call(Temporal.Instant.prototype) === '[object Temporal.Instant]'
           && descriptor.value === 'Temporal.Instant'
           && descriptor.writable === false
           && descriptor.enumerable === false
           && descriptor.configurable === true",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_to_zoned_date_time_iso_preserves_epoch_and_time_zone() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let instant = new Temporal.Instant(1000000000000000000n);
         let utc = instant.toZonedDateTimeISO('uTc');
         let offset = instant.toZonedDateTimeISO('2021-08-19T17:30-07:00');
         let constructed = new Temporal.ZonedDateTime(0n, '+01:30');
         utc.epochNanoseconds === instant.epochNanoseconds
           && utc.timeZoneId === 'UTC'
           && utc.calendarId === 'iso8601'
           && offset.timeZoneId === '-07:00'
           && constructed.epochNanoseconds === 0n
           && constructed.timeZoneId === '+01:30'
           && Object.prototype.toString.call(constructed) === '[object Temporal.ZonedDateTime]'",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_epoch_factories_validate_input_and_range() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "(() => { try { Temporal.Instant.fromEpochMilliseconds(1.5); return false } catch (e) { return e instanceof RangeError } })()
        && (() => { try { Temporal.Instant.fromEpochMilliseconds(1n); return false } catch (e) { return e instanceof TypeError } })()
        && (() => { try { Temporal.Instant.fromEpochNanoseconds(1); return false } catch (e) { return e instanceof TypeError } })()
        && (() => { try { Temporal.Instant.fromEpochNanoseconds(8640000000000000000001n); return false } catch (e) { return e instanceof RangeError } })()",
    )
    .unwrap();
    assert!(r.as_bool());
}

#[test]
fn instant_constructor_requires_new() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { Temporal.Instant(0); 'no' } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
}

#[test]
fn instant_value_of_throws() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "try { Temporal.Instant.prototype.valueOf.call(Temporal.Now.instant()) } catch (e) { e.constructor.name }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
}

#[test]
fn instant_method_on_non_instant_throws() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "try { Temporal.Instant.prototype.toString.call({}) } catch (e) { e.constructor.name }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
}

#[test]
fn instant_from_invalid_throws_range_error() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { Temporal.Instant.from('nope') } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
}

// -- Temporal.PlainDate --

#[test]
fn plain_date_from_string() {
    let mut vm = Vm::new();
    assert_eq!(num(&mut vm, "Temporal.PlainDate.from('2024-01-15').year"), 2024.0);
    assert_eq!(num(&mut vm, "Temporal.PlainDate.from('2024-01-15').month"), 1.0);
    assert_eq!(num(&mut vm, "Temporal.PlainDate.from('2024-01-15').day"), 15.0);
}

#[test]
fn plain_date_from_object() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "Temporal.PlainDate.from({year:2023, month:3, day:5}).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2023-03-05");
}

#[test]
fn plain_date_constructor_month_day() {
    let mut vm = Vm::new();
    assert_eq!(num(&mut vm, "new Temporal.PlainDate(2024, 2, 29).month"), 2.0);
    assert_eq!(num(&mut vm, "new Temporal.PlainDate(2024, 2, 29).day"), 29.0);
    assert_eq!(num(&mut vm, "new Temporal.PlainDate(2024, 2, 29).year"), 2024.0);
}

#[test]
fn plain_date_leap_year_validation() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { new Temporal.PlainDate(2024, 2, 30) } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
}

#[test]
fn plain_date_invalid_month() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { new Temporal.PlainDate(2024, 13, 1) } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
}

#[test]
fn plain_date_to_string() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainDate(2024, 1, 5).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2024-01-05");
}

#[test]
fn plain_date_requires_new() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { Temporal.PlainDate(2024, 1, 1); 'no' } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
}

#[test]
fn plain_date_method_on_non_date_throws() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "try { Temporal.PlainDate.prototype.year.get.call({}) } catch (e) { e.constructor.name }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
}

#[test]
fn plain_date_add_and_subtract_support_negative_offsets() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainDate(2024, 1, 31).add({months:1}).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2024-02-29");
    let r = eval(&mut vm, "new Temporal.PlainDate(2024, 1, 5).subtract({days:10}).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2023-12-26");
}

#[test]
fn plain_date_until_and_since_return_duration() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainDate(2024, 1, 1).until('2024-01-06').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "P5D");
    assert_eq!(
        num(
            &mut vm,
            "new Temporal.PlainDate(2024, 1, 6).since(new Temporal.PlainDate(2024, 1, 11)).days",
        ),
        -5.0
    );
    assert_eq!(
        num(
            &mut vm,
            "new Temporal.PlainDate(1997, 7, 16).since(new Temporal.PlainDate(2021, 7, 15), {largestUnit:'years'}).days",
        ),
        -29.0
    );
}

#[test]
fn duration_constructor_exposes_components() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.Duration(1,2,3,4,5,6,7,8,9,10).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "P1Y2M3W4DT5H6M7.00800901S");
    assert_eq!(num(&mut vm, "new Temporal.Duration(1,2,3,4,5,6,7,8,9,10).nanoseconds"), 10.0);
    let r = eval(&mut vm, "Temporal.Duration.from('-PT24.567890123H').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "-PT24H34M4.4044428S");
    assert_eq!(num(&mut vm, "Temporal.Duration.from('P43Y').years"), 43.0);
    let r = eval(&mut vm, "new Temporal.Duration(1,2,3,4).negated().abs().toString()").unwrap();
    assert_eq!(str_val(&vm, r), "P1Y2M3W4D");
}

#[test]
fn duration_from_validates_property_bags_and_preserves_precision() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { Temporal.Duration.from({}) } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "TypeError");
    let r = eval(
        &mut vm,
        "try { Temporal.Duration.from({hours:1,minutes:-1}) } catch (e) { e.constructor.name }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
    let r = eval(
        &mut vm,
        "Temporal.Duration.from({milliseconds:4503599627370497000,microseconds:4503599627370495000000}).toString()",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "PT9007199254740991.975424S");
}

#[test]
fn duration_from_propagates_getter_errors_and_checks_range() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "try { Temporal.Duration.from({get years(){throw new TypeError('sentinel')}}) } catch (e) { e.message }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "sentinel");
    let r = eval(
        &mut vm,
        "try { Temporal.Duration.from({seconds:9007199254740992}) } catch (e) { e.constructor.name }",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
    let r = eval(&mut vm, "Temporal.Duration.from('p1y1m1dt1h1m1s').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "P1Y1M1DT1H1M1S");
}

#[test]
fn plain_date_balances_duration_time_units_into_days() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainDate(2000,5,2).add('P1DT24H1440M86400S').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2000-05-06");
    let r = eval(&mut vm, "new Temporal.PlainDate(2000,5,2).add('-PT24.567890123H').toString()").unwrap();
    assert_eq!(str_val(&vm, r), "2000-05-01");
}

// -- Temporal.PlainTime --

#[test]
fn plain_time_constructor_components() {
    let mut vm = Vm::new();
    assert_eq!(num(&mut vm, "new Temporal.PlainTime(12, 30, 5).hour"), 12.0);
    assert_eq!(num(&mut vm, "new Temporal.PlainTime(12, 30, 5).minute"), 30.0);
    assert_eq!(num(&mut vm, "new Temporal.PlainTime(12, 30, 5).second"), 5.0);
}

#[test]
fn plain_time_full_precision_components() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let t = new Temporal.PlainTime(23, 59, 59, 999, 999, 999); t.hour + ',' + t.minute + ',' + t.second + ',' + t.millisecond + ',' + t.microsecond + ',' + t.nanosecond",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "23,59,59,999,999,999");
}

#[test]
fn plain_time_to_string() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainTime(12, 30, 5).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "12:30:05");
}

#[test]
fn plain_time_to_string_with_subseconds() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainTime(12, 30, 5, 500, 250, 1).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "12:30:05.500250001");
}

#[test]
fn plain_time_missing_components_default_zero() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "new Temporal.PlainTime().toString()").unwrap();
    assert_eq!(str_val(&vm, r), "00:00:00");
    let r = eval(&mut vm, "new Temporal.PlainTime(12).toString()").unwrap();
    assert_eq!(str_val(&vm, r), "12:00:00");
}

#[test]
fn plain_time_range_validation() {
    let mut vm = Vm::new();
    let r = eval(&mut vm, "try { new Temporal.PlainTime(24, 0, 0) } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
    let r = eval(&mut vm, "try { new Temporal.PlainTime(0, 60, 0) } catch (e) { e.constructor.name }").unwrap();
    assert_eq!(str_val(&vm, r), "RangeError");
}

// -- Temporal.PlainDateTime --

#[test]
fn plain_date_time_constructor_and_components() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let dt = new Temporal.PlainDateTime(2024, 2, 29, 23, 58, 57, 987, 654, 321);
         dt.year + ',' + dt.month + ',' + dt.day + ',' + dt.hour + ',' + dt.minute + ',' +
         dt.second + ',' + dt.millisecond + ',' + dt.microsecond + ',' + dt.nanosecond + ',' + dt.calendarId",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "2024,2,29,23,58,57,987,654,321,iso8601");
}

#[test]
fn plain_date_time_defaults_time_to_midnight() {
    let mut vm = Vm::new();
    assert_eq!(
        num(
            &mut vm,
            "let dt = new Temporal.PlainDateTime(2024, 7, 6); dt.hour + dt.minute + dt.second + dt.nanosecond",
        ),
        0.0
    );
}

#[test]
fn plain_date_time_splits_into_plain_date_and_time() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let dt = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 789, 123, 456);
         dt.toPlainDate().toString() + 'T' + dt.toPlainTime().toString()",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "2000-05-02T12:34:56.789123456");
}

#[test]
fn plain_date_time_validates_brand_and_ranges() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let getter = Object.getOwnPropertyDescriptor(Temporal.PlainDateTime.prototype, 'year').get;
         let a; let b; let c;
         try { getter.call({}) } catch (e) { a = e.constructor.name }
         try { new Temporal.PlainDateTime(2023, 2, 29) } catch (e) { b = e.constructor.name }
         try { new Temporal.PlainDateTime(2024, 1, 1, 24) } catch (e) { c = e.constructor.name }
         a + ',' + b + ',' + c",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "TypeError,RangeError,RangeError");
}

#[test]
fn plain_date_time_metadata_and_value_of() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let dt = new Temporal.PlainDateTime(2024, 1, 2);
         let error;
         try { dt.valueOf() } catch (e) { error = e.constructor.name }
         Temporal.PlainDateTime.length + ',' + (dt instanceof Temporal.PlainDateTime) + ',' +
         Object.prototype.toString.call(dt) + ',' + error",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "3,true,[object Temporal.PlainDateTime],TypeError");
}

#[test]
fn plain_date_time_from_instances_strings_and_objects() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let original = new Temporal.PlainDateTime(1976, 11, 18, 15, 23, 30, 1, 123, 456);
         let copy = Temporal.PlainDateTime.from(original);
         let parsed = Temporal.PlainDateTime.from('1976-11-18T15:23:30.001123456');
         let bag = Temporal.PlainDateTime.from({year: 1976, monthCode: 'M11', day: 18, hour: 15});
         (copy !== original) + ',' + parsed.toString() + ',' + bag.toString()",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "true,1976-11-18T15:23:30.001123456,1976-11-18T15:00:00");
}

#[test]
fn plain_date_time_compare_uses_internal_slots() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "let earlier = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56);
         let later = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 57);
         Object.defineProperty(earlier, 'year', {get() { throw new Error('getter') }});
         Object.defineProperty(later, 'year', {get() { throw new Error('getter') }});
         Temporal.PlainDateTime.compare(earlier, later) + ',' +
         Temporal.PlainDateTime.compare(later, earlier) + ',' +
         Temporal.PlainDateTime.compare(earlier, earlier)",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "-1,1,0");
}

#[test]
fn plain_date_time_serializes_extended_years() {
    let mut vm = Vm::new();
    let r = eval(
        &mut vm,
        "new Temporal.PlainDateTime(-1, 8, 7, 6, 54, 32, 100).toString() + ',' +
         new Temporal.PlainDateTime(10000, 6, 7, 8, 9, 10, 987).toJSON()",
    )
    .unwrap();
    assert_eq!(str_val(&vm, r), "-000001-08-07T06:54:32.1,+010000-06-07T08:09:10.987");
}