Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/js/src/tests/test262/intl402/ListFormat/constructor/supportedLocalesOf/basic.js b/js/src/tests/test262/intl402/ListFormat/constructor/supportedLocalesOf/basic.js
new file mode 100644
index 0000000000..81b7dbcf88
--- /dev/null
+++ b/js/src/tests/test262/intl402/ListFormat/constructor/supportedLocalesOf/basic.js
@@ -0,0 +1,23 @@
+// Copyright 2018 Google Inc., Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.ListFormat.supportedLocalesOf
+description: >
+    Tests that Intl.ListFormat has a supportedLocalesOf property,
+    and it works as planned.
+features: [Intl.ListFormat]
+---*/
+
+assert.sameValue(typeof Intl.ListFormat.supportedLocalesOf, "function",
+                 "supportedLocalesOf should be supported.");
+
+const defaultLocale = new Intl.ListFormat().resolvedOptions().locale;
+const notSupported = 'zxx'; // "no linguistic content"
+const requestedLocales = [defaultLocale, notSupported];
+
+const supportedLocales = Intl.ListFormat.supportedLocalesOf(requestedLocales);
+assert.sameValue(supportedLocales.length, 1, 'The length of supported locales list is not 1.');
+assert.sameValue(supportedLocales[0], defaultLocale, 'The default locale is not returned in the supported list.');
+
+reportCompare(0, 0);