1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/one-of-era-erayear-undefined.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/one-of-era-erayear-undefined.js
new file mode 100644
index 0000000000..6696311237
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/one-of-era-erayear-undefined.js
@@ -0,0 +1,19 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2023 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.yearMonthFromFields
+description: Does not throw a RangeError if only one of era/eraYear fields is present
+features: [Temporal]
+includes: [temporalHelpers.js]
+---*/
+
+const base = { year: 2000, month: 5, day: 2, era: 'ce' };
+const instance = new Temporal.Calendar('iso8601');
+TemporalHelpers.assertPlainYearMonth(instance.yearMonthFromFields({ ...base }), 2000, 5, 'M05');
+
+const base2 = { year: 2000, month: 5, day: 2, eraYear: 1 };
+TemporalHelpers.assertPlainYearMonth(instance.yearMonthFromFields({ ...base }), 2000, 5, 'M05');
+
+reportCompare(0, 0);