1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/TimeZone/prototype/getPlainDateTimeFor/instant-string-limits.js b/js/src/tests/test262/built-ins/Temporal/TimeZone/prototype/getPlainDateTimeFor/instant-string-limits.js
new file mode 100644
index 0000000000..e57fef37f1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/TimeZone/prototype/getPlainDateTimeFor/instant-string-limits.js
@@ -0,0 +1,48 @@
+// |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.timezone.prototype.getplaindatetimefor
+description: String arguments at the limit of the representable range
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const instance = new Temporal.TimeZone("UTC");
+
+const minInstantStrings = [
+  "-271821-04-20T00:00Z",
+  "-271821-04-19T23:00-01:00",
+  "-271821-04-19T00:00:00.000000001-23:59:59.999999999",
+];
+for (const str of minInstantStrings) {
+  TemporalHelpers.assertPlainDateTime(instance.getPlainDateTimeFor(str), -271821, 4, "M04", 20, 0, 0, 0, 0, 0, 0, `instant string ${str} should be valid`);
+}
+
+const maxInstantStrings = [
+  "+275760-09-13T00:00Z",
+  "+275760-09-13T01:00+01:00",
+  "+275760-09-13T23:59:59.999999999+23:59:59.999999999",
+];
+
+for (const str of maxInstantStrings) {
+  TemporalHelpers.assertPlainDateTime(instance.getPlainDateTimeFor(str), 275760, 9, "M09", 13, 0, 0, 0, 0, 0, 0, `instant string ${str} should be valid`);
+}
+
+const outOfRangeInstantStrings = [
+  "-271821-04-19T23:59:59.999999999Z",
+  "-271821-04-19T23:00-00:59:59.999999999",
+  "-271821-04-19T00:00:00-23:59:59.999999999",
+  "-271821-04-19T00:00:00-24:00",
+  "+275760-09-13T00:00:00.000000001Z",
+  "+275760-09-13T01:00+00:59:59.999999999",
+  "+275760-09-14T00:00+23:59:59.999999999",
+  "+275760-09-14T00:00+24:00",
+];
+
+for (const str of outOfRangeInstantStrings) {
+  assert.throws(RangeError, () => instance.getPlainDateTimeFor(str), `instant string ${str} should not be valid`);
+}
+
+reportCompare(0, 0);