1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/Locale/constructor-options-region-invalid.js b/js/src/tests/test262/intl402/Locale/constructor-options-region-invalid.js
new file mode 100644
index 0000000000..5f5444b6b5
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+++ b/js/src/tests/test262/intl402/Locale/constructor-options-region-invalid.js
@@ -0,0 +1,58 @@
+// 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 )
+    ...
+    8. If region is not undefined, then
+        a. If region does not match the region production, throw a RangeError exception.
+    ...
+
+features: [Intl.Locale]
+---*/
+
+/*
+ region        = 2ALPHA              ; ISO 3166-1 code
+               / 3DIGIT              ; UN M.49 code
+*/
+const invalidRegionOptions = [
+  "",
+  "a",
+  "abc",
+  "a7",
+
+  // Value cannot be parsed as a 'region' production.
+  "notaregion",
+
+  // Value contains more than just the 'region' production.
+  "SA-vaidika",
+  "SA-a-asdf",
+  "SA-x-private",
+
+  // Value contains more than just the 'script' production.
+  "ary-Arab",
+  "Latn-SA",
+  "Latn-vaidika",
+  "Latn-a-asdf",
+  "Latn-x-private",
+
+  7,
+];
+for (const region of invalidRegionOptions) {
+  assert.throws(RangeError, function() {
+    new Intl.Locale("en", {region});
+  }, `new Intl.Locale("en", {region: "${region}"}) throws RangeError`);
+}
+
+reportCompare(0, 0);