1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/until/argument-string.js b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/until/argument-string.js
new file mode 100644
index 0000000000..e0cf058da2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/until/argument-string.js
@@ -0,0 +1,24 @@
+// |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.plainyearmonth.prototype.until
+description: A string argument is parsed into a PlainYearMonth
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainYearMonth(1976, 11);
+for (const arg of TemporalHelpers.ISO.plainYearMonthStringsValid()) {
+  const result = instance.until(arg);
+  TemporalHelpers.assertDuration(result, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, `"${arg}" is a valid PlainYearMonth string`);
+}
+
+const instanceNegativeYear = new Temporal.PlainYearMonth(-9999, 11);
+for (const arg of TemporalHelpers.ISO.plainYearMonthStringsValidNegativeYear()) {
+  const result = instanceNegativeYear.until(arg);
+  TemporalHelpers.assertDuration(result, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, `"${arg}" is a valid PlainYearMonth string`);
+}
+
+reportCompare(0, 0);