1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DurationFormat/supportedLocalesOf/locales-invalid.js b/js/src/tests/test262/intl402/DurationFormat/supportedLocalesOf/locales-invalid.js
new file mode 100644
index 0000000000..8f5e8c0e81
--- /dev/null
+++ b/js/src/tests/test262/intl402/DurationFormat/supportedLocalesOf/locales-invalid.js
@@ -0,0 +1,23 @@
+// |reftest| skip -- Intl.DurationFormat is not supported
+// Copyright 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.DurationFormat.supportedLocalesOf
+description: Checks error cases for the locales argument to the supportedLocalesOf function.
+info: |
+    Intl.DurationFormat.supportedLocalesOf ( locales [, options ])
+    (...)
+    2. Let requestedLocales be CanonicalizeLocaleList(locales).
+includes: [testIntl.js]
+features: [Intl.DurationFormat]
+---*/
+
+assert.sameValue(typeof Intl.DurationFormat.supportedLocalesOf, "function",
+                 "Should support Intl.DurationFormat.supportedLocalesOf.");
+
+for (const [locales, expectedError] of getInvalidLocaleArguments()) {
+    assert.throws(expectedError, () => Intl.DurationFormat.supportedLocalesOf(locales));
+}
+
+reportCompare(0, 0);