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diff --git a/js/src/tests/test262/intl402/Locale/constructor-options-language-invalid.js b/js/src/tests/test262/intl402/Locale/constructor-options-language-invalid.js
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+++ b/js/src/tests/test262/intl402/Locale/constructor-options-language-invalid.js
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+// Copyright 2018 André Bargull; Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.locale
+description: >
+    Checks error cases for the options argument to the Locale
+    constructor.
+info: |
+    Intl.Locale( tag [, options] )
+    10. If options is undefined, then
+    11. Else
+        a. Let options be ? ToObject(options).
+    12. Set tag to ? ApplyOptionsToTag(tag, options).
+
+    ApplyOptionsToTag( tag, options )
+    ...
+    4. If language is not undefined, then
+        a. If language does not match the language production, throw a RangeError exception.
+    ...
+
+features: [Intl.Locale]
+---*/
+
+/*
+ language      = 2*3ALPHA            ; shortest ISO 639 code
+                 ["-" extlang]       ; sometimes followed by
+                                     ; extended language subtags
+               / 4ALPHA              ; or reserved for future use
+               / 5*8ALPHA            ; or registered language subtag
+
+ extlang       = 3ALPHA              ; selected ISO 639 codes
+                 *2("-" 3ALPHA)      ; permanently reserved
+*/
+const invalidLanguageOptions = [
+  "",
+  "a",
+  "ab7",
+  "notalanguage",
+  "undefined",
+
+  // Value contains more than just the 'language' production.
+  "fr-Latn",
+  "fr-FR",
+  "sa-vaidika",
+  "fr-a-asdf",
+  "fr-x-private",
+
+  // Irregular grandfathered language tag.
+  "i-klingon",
+
+  // Regular grandfathered language tag.
+  "zh-min",
+  "zh-min-nan",
+
+  // Reserved with extended language subtag
+  "abcd-US",
+  "abcde-US",
+  "abcdef-US",
+  "abcdefg-US",
+  "abcdefgh-US",
+
+  7,
+];
+for (const language of invalidLanguageOptions) {
+  assert.throws(RangeError, function() {
+    new Intl.Locale("en", {language});
+  }, `new Intl.Locale("en", {language: "${language}"}) throws RangeError`);
+}
+
+reportCompare(0, 0);