1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/until/smallestunit-invalid-string.js b/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/until/smallestunit-invalid-string.js
new file mode 100644
index 0000000000..6979d8f13c
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/until/smallestunit-invalid-string.js
@@ -0,0 +1,41 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.until
+description: RangeError thrown when smallestUnit option not one of the allowed string values
+features: [Temporal]
+---*/
+
+const earlier = new Temporal.PlainDate(2000, 5, 2);
+const later = new Temporal.PlainDate(2001, 6, 3);
+const badValues = [
+  "era",
+  "eraYear",
+  "hour",
+  "minute",
+  "second",
+  "millisecond",
+  "microsecond",
+  "nanosecond",
+  "month\0",
+  "YEAR",
+  "eras",
+  "eraYears",
+  "hours",
+  "minutes",
+  "seconds",
+  "milliseconds",
+  "microseconds",
+  "nanoseconds",
+  "months\0",
+  "YEARS",
+  "other string",
+];
+for (const smallestUnit of badValues) {
+  assert.throws(RangeError, () => earlier.until(later, { smallestUnit }),
+    `"${smallestUnit}" is not a valid value for smallest unit`);
+}
+
+reportCompare(0, 0);