5 files changed, 109 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/Date/prototype/toLocaleString/browser.js b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/browser.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/browser.js
diff --git a/js/src/tests/test262/intl402/Date/prototype/toLocaleString/builtin.js b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/builtin.js
new file mode 100644
index 0000000000..7db6c9b8df
--- /dev/null
+++ b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/builtin.js
@@ -0,0 +1,30 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+es5id: 13.3.1_L15
+description: >
+    Tests that Date.prototype.toLocaleString meets the requirements
+    for built-in objects defined by the introduction of chapter 17 of
+    the ECMAScript Language Specification.
+author: Norbert Lindenberg
+includes: [isConstructor.js]
+features: [Reflect.construct]
+---*/
+
+assert.sameValue(Object.prototype.toString.call(Date.prototype.toLocaleString), "[object Function]",
+                 "The [[Class]] internal property of a built-in function must be " +
+                 "\"Function\".");
+
+assert(Object.isExtensible(Date.prototype.toLocaleString),
+       "Built-in objects must be extensible.");
+
+assert.sameValue(Object.getPrototypeOf(Date.prototype.toLocaleString), Function.prototype);
+
+assert.sameValue(Date.prototype.toLocaleString.hasOwnProperty("prototype"), false,
+                 "Built-in functions that aren't constructors must not have a prototype property.");
+
+assert.sameValue(isConstructor(Date.prototype.toLocaleString), false,
+                 "Built-in functions don't implement [[Construct]] unless explicitly specified.");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/intl402/Date/prototype/toLocaleString/default-options-object-prototype.js b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/default-options-object-prototype.js
new file mode 100644
index 0000000000..28654c8173
--- /dev/null
+++ b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/default-options-object-prototype.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2017 Daniel Ehrenberg. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-todatetimeoptions
+description: >
+  Monkey-patching Object.prototype does not change the default
+  options for DateTimeFormat as a null prototype is used.
+info: |
+  ToDateTimeOptions ( options, required, defaults )
+
+  1. If options is undefined, let options be null; otherwise let options be ? ToObject(options).
+  1. Let options be ObjectCreate(options).
+---*/
+
+if (new Intl.DateTimeFormat("en").resolvedOptions().locale === "en") {
+  Object.prototype.year = "2-digit";
+  assert.notSameValue(new Date().toLocaleString("en").length, 2);
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/intl402/Date/prototype/toLocaleString/length.js b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/length.js
new file mode 100644
index 0000000000..5554f5285c
--- /dev/null
+++ b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/length.js
@@ -0,0 +1,34 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sup-date.prototype.tolocalestring
+description: >
+  Date.prototype.toLocaleString.length is 0.
+info: |
+  Date.prototype.toLocaleString ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+verifyProperty(Date.prototype.toLocaleString, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/intl402/Date/prototype/toLocaleString/shell.js b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/shell.js
new file mode 100644
index 0000000000..eda1477282
--- /dev/null
+++ b/js/src/tests/test262/intl402/Date/prototype/toLocaleString/shell.js
@@ -0,0 +1,24 @@
+// GENERATED, DO NOT EDIT
+// file: isConstructor.js
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+    Test if a given function is a constructor function.
+defines: [isConstructor]
+features: [Reflect.construct]
+---*/
+
+function isConstructor(f) {
+    if (typeof f !== "function") {
+      throw new Test262Error("isConstructor invoked with a non-function value");
+    }
+
+    try {
+        Reflect.construct(function(){}, [], f);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}