Test that TypedArray properties cannot be set in strict mode

test/mjsunit/es6/typedarray.js

Index: test/mjsunit/es6/typedarray.js
diff --git a/test/mjsunit/es6/typedarray.js b/test/mjsunit/es6/typedarray.js
index ef7955ce928bfd80deff04bea4ef71f2ad8395cc..7b1cc06e1ce446f06bc0e0c74786c5d6179d0e5d 100644
--- a/test/mjsunit/es6/typedarray.js
+++ b/test/mjsunit/es6/typedarray.js
@@ -417,6 +417,7 @@ var typedArrayConstructors = [
 
 function TestPropertyTypeChecks(constructor) {
   function CheckProperty(name) {
+    assertThrows(function() { 'use strict'; new constructor(10)[name] = 0; })
     var d = Object.getOwnPropertyDescriptor(constructor.prototype, name);

[adamk, 2015/07/16 22:24:22]

You can also test this more directly:

assertEquals(undefined, d.set);

[Dan Ehrenberg, 2015/07/16 23:54:55]

Acknowledged.

     var o = {};
     assertThrows(function() {d.get.call(o);}, TypeError);
@@ -756,3 +757,13 @@ TestArbitrary(new DataView(new ArrayBuffer(256)));
 // Test direct constructor call
 assertThrows(function() { ArrayBuffer(); }, TypeError);
 assertThrows(function() { DataView(new ArrayBuffer()); }, TypeError);
+
+function TestNonConfigurableProperties(constructor) {
+  var arr = new constructor([100])
+  assertFalse(Object.getOwnPropertyDescriptor(arr,"0").configurable)
+  assertFalse(delete arr[0])
+}
+
+for(i = 0; i < typedArrayConstructors.length; i++) {
+  TestNonConfigurableProperties(typedArrayConstructors[i]);
+}