Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 37 insertions, 0 deletions

diff --git a/js/src/tests/test262/intl402/fallback-locales-are-supported.js b/js/src/tests/test262/intl402/fallback-locales-are-supported.js
new file mode 100644
index 0000000000..e26c3835fa
--- /dev/null
+++ b/js/src/tests/test262/intl402/fallback-locales-are-supported.js
@@ -0,0 +1,37 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 9.1_b
+description: >
+    Tests that appropriate fallback locales are provided for
+    supported locales.
+author: Norbert Lindenberg
+includes: [testIntl.js]
+features: [Array.prototype.includes]
+---*/
+
+testWithIntlConstructors(function (Constructor) {
+    // The test is only valid under "lookup" localeMatcher
+    var info = getLocaleSupportInfo(Constructor, {localeMatcher: "lookup"});
+    for (var locale of info.supported) {
+        var match = /^([a-z]{2,3})(-[A-Z][a-z]{3})?(-(?:[A-Z]{2}|[0-9]{3}))?$/.exec(locale);
+        assert.notSameValue(match, null, "Locale " + locale + " is supported, but can't be parsed.")
+
+        var [language, script, region] = match.slice(1);
+
+        if (script !== undefined) {
+            var fallback = language + script;
+            assert(info.supported.includes(fallback) || info.byFallback.includes(fallback),
+                   "Locale " + locale + " is supported, but fallback " + fallback + " isn't.");
+        }
+
+        if (region !== undefined) {
+            var fallback = language + region;
+            assert(info.supported.includes(fallback) || info.byFallback.includes(fallback),
+                   "Locale " + locale + " is supported, but fallback " + fallback + " isn't.");
+        }
+    }
+});
+
+reportCompare(0, 0);