1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/missing-properties.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/missing-properties.js
new file mode 100644
index 0000000000..9de556a653
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/yearMonthFromFields/missing-properties.js
@@ -0,0 +1,29 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2022 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: Errors due to missing properties on fields object are thrown in the correct order
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Calendar("iso8601");
+
+let getMonth = false;
+let getMonthCode = false;
+const missingYearAndMonth = {
+  get month() {
+    getMonth = true;
+  },
+  get monthCode() {
+    getMonthCode = true;
+  },
+};
+assert.throws(TypeError, () => instance.yearMonthFromFields(missingYearAndMonth), "year should be checked after fetching but before resolving the month");
+assert(getMonth, "year is fetched after month");
+assert(getMonthCode, "year is fetched after monthCode");
+
+assert.throws(TypeError, () => instance.yearMonthFromFields({ year: 2000 }), "month should be resolved last");
+
+reportCompare(0, 0);