1 files changed, 117 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DateTimeFormat/prototype/formatRangeToParts/temporal-objects-resolved-time-zone.js b/js/src/tests/test262/intl402/DateTimeFormat/prototype/formatRangeToParts/temporal-objects-resolved-time-zone.js
new file mode 100644
index 0000000000..ec34d8e9a9
--- /dev/null
+++ b/js/src/tests/test262/intl402/DateTimeFormat/prototype/formatRangeToParts/temporal-objects-resolved-time-zone.js
@@ -0,0 +1,117 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-datetime-format-functions
+description: A time zone in resolvedOptions with a large offset still produces the correct string
+locale: [en]
+includes: [deepEqual.js]
+features: [Temporal, Intl.DateTimeFormat-formatRange]
+---*/
+
+// Tolerate implementation variance by expecting consistency without being prescriptive.
+// TODO: can we change tests to be less reliant on CLDR formats while still testing that
+// Temporal and Intl are behaving as expected?
+const usDayPeriodSpace =
+  new Intl.DateTimeFormat('en-US', { timeStyle: 'short' })
+    .formatToParts(0)
+    .find((part, i, parts) => part.type === 'literal' && parts[i + 1].type === 'dayPeriod')?.value || '';
+const usDateRangeSeparator = new Intl.DateTimeFormat('en-US', { dateStyle: 'short' })
+  .formatRangeToParts(1 * 86400 * 1000, 366 * 86400 * 1000)
+  .find((part) => part.type === 'literal' && part.source === 'shared').value;
+
+const formatter = new Intl.DateTimeFormat('en-US', { timeZone: 'Pacific/Apia' });
+
+const date1 = new Temporal.PlainDate(2021, 8, 4);
+const date2 = new Temporal.PlainDate(2021, 8, 5);
+const dateResult = formatter.formatRangeToParts(date1, date2);
+assert.deepEqual(dateResult, [
+  { type: "month", value: "8", source: "startRange" },
+  { type: "literal", value: "/", source: "startRange" },
+  { type: "day", value: "4", source: "startRange" },
+  { type: "literal", value: "/", source: "startRange" },
+  { type: "year", value: "2021", source: "startRange" },
+  { type: "literal", value: usDateRangeSeparator, source: "shared" },
+  { type: "month", value: "8", source: "endRange" },
+  { type: "literal", value: "/", source: "endRange" },
+  { type: "day", value: "5", source: "endRange" },
+  { type: "literal", value: "/", source: "endRange" },
+  { type: "year", value: "2021", source: "endRange" },
+], "plain dates");
+
+const datetime1 = new Temporal.PlainDateTime(2021, 8, 4, 0, 30, 45, 123, 456, 789);
+const datetime2 = new Temporal.PlainDateTime(2021, 8, 4, 23, 30, 45, 123, 456, 789);
+const datetimeResult = formatter.formatRangeToParts(datetime1, datetime2);
+assert.deepEqual(datetimeResult, [
+  { type: "month", value: "8", source: "shared" },
+  { type: "literal", value: "/", source: "shared" },
+  { type: "day", value: "4", source: "shared" },
+  { type: "literal", value: "/", source: "shared" },
+  { type: "year", value: "2021", source: "shared" },
+  { type: "literal", value: ", ", source: "shared" },
+  { type: "hour", value: "12", source: "startRange" },
+  { type: "literal", value: ":", source: "startRange" },
+  { type: "minute", value: "30", source: "startRange" },
+  { type: "literal", value: ":", source: "startRange" },
+  { type: "second", value: "45", source: "startRange" },
+  { type: "literal", value: usDayPeriodSpace, source: "startRange" },
+  { type: "dayPeriod", value: "AM", source: "startRange" },
+  { type: "literal", value: usDateRangeSeparator, source: "shared" },
+  { type: "hour", value: "11", source: "endRange" },
+  { type: "literal", value: ":", source: "endRange" },
+  { type: "minute", value: "30", source: "endRange" },
+  { type: "literal", value: ":", source: "endRange" },
+  { type: "second", value: "45", source: "endRange" },
+  { type: "literal", value: usDayPeriodSpace, source: "endRange" },
+  { type: "dayPeriod", value: "PM", source: "endRange" },
+], "plain datetimes");
+
+const monthDay1 = new Temporal.PlainMonthDay(8, 4, "gregory");
+const monthDay2 = new Temporal.PlainMonthDay(8, 5, "gregory");
+const monthDayResult = formatter.formatRangeToParts(monthDay1, monthDay2);
+assert.deepEqual(monthDayResult, [
+  { type: "month", value: "8", source: "startRange" },
+  { type: "literal", value: "/", source: "startRange" },
+  { type: "day", value: "4", source: "startRange" },
+  { type: "literal", value: usDateRangeSeparator, source: "shared" },
+  { type: "month", value: "8", source: "endRange" },
+  { type: "literal", value: "/", source: "endRange" },
+  { type: "day", value: "5", source: "endRange" },
+], "plain month-days");
+
+const time1 = new Temporal.PlainTime(0, 30, 45, 123, 456, 789);
+const time2 = new Temporal.PlainTime(23, 30, 45, 123, 456, 789);
+const timeResult = formatter.formatRangeToParts(time1, time2);
+assert.deepEqual(timeResult, [
+  { type: "hour", value: "12", source: "startRange" },
+  { type: "literal", value: ":", source: "startRange" },
+  { type: "minute", value: "30", source: "startRange" },
+  { type: "literal", value: ":", source: "startRange" },
+  { type: "second", value: "45", source: "startRange" },
+  { type: "literal", value: usDayPeriodSpace, source: "startRange" },
+  { type: "dayPeriod", value: "AM", source: "startRange" },
+  { type: "literal", value: usDateRangeSeparator, source: "shared" },
+  { type: "hour", value: "11", source: "endRange" },
+  { type: "literal", value: ":", source: "endRange" },
+  { type: "minute", value: "30", source: "endRange" },
+  { type: "literal", value: ":", source: "endRange" },
+  { type: "second", value: "45", source: "endRange" },
+  { type: "literal", value: usDayPeriodSpace, source: "endRange" },
+  { type: "dayPeriod", value: "PM", source: "endRange" },
+], "plain times");
+
+const month1 = new Temporal.PlainYearMonth(2021, 8, "gregory");
+const month2 = new Temporal.PlainYearMonth(2021, 9, "gregory");
+const monthResult = formatter.formatRangeToParts(month1, month2);
+assert.deepEqual(monthResult, [
+  { type: "month", value: "8", source: "startRange" },
+  { type: "literal", value: "/", source: "startRange" },
+  { type: "year", value: "2021", source: "startRange" },
+  { type: "literal", value: usDateRangeSeparator, source: "shared" },
+  { type: "month", value: "9", source: "endRange" },
+  { type: "literal", value: "/", source: "endRange" },
+  { type: "year", value: "2021", source: "endRange" },
+], "plain year-months");
+
+reportCompare(0, 0);