1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/monthDayFromFields/basic.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/monthDayFromFields/basic.js
new file mode 100644
index 0000000000..09ca1c9b00
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+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/monthDayFromFields/basic.js
@@ -0,0 +1,51 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.monthdayfromfields
+description: Temporal.Calendar.prototype.monthDayFromFields will return correctly with valid data.
+info: |
+  1. Let calendar be the this value.
+  2. Perform ? RequireInternalSlot(calendar, [[InitializedTemporalCalendar]]).
+  3. Assert: calendar.[[Identifier]] is "iso8601".
+  4. If Type(fields) is not Object, throw a TypeError exception.
+  5. Set options to ? GetOptionsObject(options).
+  6. Set fields to ? PrepareTemporalFields(fields, « "day", "month", "monthCode", "year" », « "day" »).
+  7. Let overflow be ? ToTemporalOverflow(options).
+  8. Perform ? ISOResolveMonth(fields).
+  9. Let result be ? ISOMonthDayFromFields(fields, overflow).
+  10. Return ? CreateTemporalMonthDay(result.[[Month]], result.[[Day]], "iso8601", result.[[ReferenceISOYear]]).
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const cal = new Temporal.Calendar("iso8601");
+
+const options = [
+  { overflow: "constrain" },
+  { overflow: "reject" },
+  {},
+  undefined,
+];
+options.forEach((opt) => {
+  const optionsDesc = opt && JSON.stringify(opt);
+  result = cal.monthDayFromFields({ year: 2021, month: 7, day: 3 }, opt);
+  TemporalHelpers.assertPlainMonthDay(result, "M07", 3, `month 7, day 3, with year, options = ${optionsDesc}`);
+  result = cal.monthDayFromFields({ year: 2021, month: 12, day: 31 }, opt);
+  TemporalHelpers.assertPlainMonthDay(result, "M12", 31, `month 12, day 31, with year, options = ${optionsDesc}`);
+  result = cal.monthDayFromFields({ monthCode: "M07", day: 3 }, opt);
+  TemporalHelpers.assertPlainMonthDay(result, "M07", 3, `monthCode M07, day 3, options = ${optionsDesc}`);
+  result = cal.monthDayFromFields({ monthCode: "M12", day: 31 }, opt);
+  TemporalHelpers.assertPlainMonthDay(result, "M12", 31, `monthCode M12, day 31, options = ${optionsDesc}`);
+});
+
+TemporalHelpers.ISOMonths.forEach(({ month, monthCode, daysInMonth }) => {
+  result = cal.monthDayFromFields({ month, day: daysInMonth });
+  TemporalHelpers.assertPlainMonthDay(result, monthCode, daysInMonth, `month ${month}, day ${daysInMonth}`);
+
+  result = cal.monthDayFromFields({ monthCode, day: daysInMonth });
+  TemporalHelpers.assertPlainMonthDay(result, monthCode, daysInMonth, `monthCode ${monthCode}, day ${daysInMonth}`);
+});
+
+reportCompare(0, 0);