1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/dateUntil/argument-number.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/dateUntil/argument-number.js
new file mode 100644
index 0000000000..4a8ba0f55d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/dateUntil/argument-number.js
@@ -0,0 +1,33 @@
+// |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.dateuntil
+description: A number cannot be used in place of a Temporal.PlainDate
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Calendar("iso8601");
+
+const numbers = [
+  1,
+  19761118,
+  -19761118,
+  1234567890,
+];
+
+for (const arg of numbers) {
+  assert.throws(
+    TypeError,
+    () => instance.dateUntil(arg, new Temporal.PlainDate(1977, 11, 18)),
+    "A number is not a valid ISO string for PlainDate (first argument)"
+  );
+  assert.throws(
+    TypeError,
+    () => instance.dateUntil(new Temporal.PlainDate(1977, 11, 18), arg),
+    "A number is not a valid ISO string for PlainDate (second argument)"
+  );
+}
+
+reportCompare(0, 0);