1 files changed, 91 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/Intl/getCanonicalLocales/overriden-arg-length.js b/js/src/tests/test262/intl402/Intl/getCanonicalLocales/overriden-arg-length.js
new file mode 100644
index 0000000000..12d4e8c567
--- /dev/null
+++ b/js/src/tests/test262/intl402/Intl/getCanonicalLocales/overriden-arg-length.js
@@ -0,0 +1,91 @@
+// Copyright 2016 Mozilla Corporation. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+esid: sec-intl.getcanonicallocales
+description: Test Intl.getCanonicalLocales for step 5. 
+info: |
+  9.2.1 CanonicalizeLocaleList (locales)
+    5. Let len be ? ToLength(? Get(O, "length")).
+includes: [compareArray.js]
+features: [Symbol]
+---*/
+
+var locales = {
+  '0': 'en-US',
+};
+
+Object.defineProperty(locales, "length", {
+  get: function() { throw new Test262Error() }
+});
+
+assert.throws(Test262Error, function() {
+  Intl.getCanonicalLocales(locales);
+}, "should throw if locales.length throws");
+
+var locales = {
+  '0': 'en-US',
+  '1': 'pt-BR',
+};
+
+Object.defineProperty(locales, "length", {
+  get: function() { return "1" }
+});
+
+assert(compareArray(Intl.getCanonicalLocales(locales), ['en-US']),
+  "should return one element if locales.length is '1'");
+
+var locales = {
+  '0': 'en-US',
+  '1': 'pt-BR',
+};
+
+Object.defineProperty(locales, "length", {
+  get: function() { return 1.3 }
+});
+
+assert(compareArray(Intl.getCanonicalLocales(locales), ['en-US']),
+  "should return one element if locales.length is 1.3");
+
+var locales = {
+  '0': 'en-US',
+  '1': 'pt-BR',
+};
+
+Object.defineProperty(locales, "length", {
+  get: function() { return Symbol("1.8") }
+});
+
+assert.throws(TypeError, function() {
+  Intl.getCanonicalLocales(locales);
+}, "should throw if locales.length is a Symbol");
+
+var locales = {
+  '0': 'en-US',
+  '1': 'pt-BR',
+};
+
+Object.defineProperty(locales, "length", {
+  get: function() { return -Infinity }
+});
+
+assert(compareArray(Intl.getCanonicalLocales(locales), []),
+  "should return empty array if locales.length is -Infinity");
+
+var locales = {
+  length: -Math.pow(2, 32) + 1
+};
+
+Object.defineProperty(locales, "0", {
+  get: function() { throw new Error("must not be gotten!"); }
+})
+
+assert(compareArray(Intl.getCanonicalLocales(locales), []),
+  "should return empty array if locales.length is a negative value");
+
+var count = 0;
+var locs = { get length() { if (count++ > 0) throw 42; return 0; } };
+var locales = Intl.getCanonicalLocales(locs); // shouldn't throw 42
+assert.sameValue(locales.length, 0);
+
+reportCompare(0, 0);