js/src/jsapi-tests/testDeepFreeze.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include "jsapi-tests/tests.h"
   9
  10 BEGIN_TEST(testDeepFreeze_bug535703) {
  11   JS::RootedValue v(cx);
  12   EVAL("var x = {}; x;", &v);
  13   JS::RootedObject obj(cx, v.toObjectOrNull());
  14   CHECK(JS_DeepFreezeObject(cx, obj));  // don't crash
  15   EVAL("Object.isFrozen(x)", &v);
  16   CHECK(v.isTrue());
  17   return true;
  18 }
  19 END_TEST(testDeepFreeze_bug535703)
  20
  21 BEGIN_TEST(testDeepFreeze_deep) {
  22   JS::RootedValue a(cx), o(cx);
  23   EXEC(
  24       "var a = {}, o = a;\n"
  25       "for (var i = 0; i < 5000; i++)\n"
  26       "    a = {x: a, y: a};\n");
  27   EVAL("a", &a);
  28   EVAL("o", &o);
  29
  30   JS::RootedObject aobj(cx, a.toObjectOrNull());
  31   CHECK(JS_DeepFreezeObject(cx, aobj));
  32
  33   JS::RootedValue b(cx);
  34   EVAL("Object.isFrozen(a)", &b);
  35   CHECK(b.isTrue());
  36   EVAL("Object.isFrozen(o)", &b);
  37   CHECK(b.isTrue());
  38   return true;
  39 }
  40 END_TEST(testDeepFreeze_deep)
  41
  42 BEGIN_TEST(testDeepFreeze_loop) {
  43   JS::RootedValue x(cx), y(cx);
  44   EXEC("var x = [], y = {x: x}; y.y = y; x.push(x, y);");
  45   EVAL("x", &x);
  46   EVAL("y", &y);
  47
  48   JS::RootedObject xobj(cx, x.toObjectOrNull());
  49   CHECK(JS_DeepFreezeObject(cx, xobj));
  50
  51   JS::RootedValue b(cx);
  52   EVAL("Object.isFrozen(x)", &b);
  53   CHECK(b.isTrue());
  54   EVAL("Object.isFrozen(y)", &b);
  55   CHECK(b.isTrue());
  56   return true;
  57 }
  58 END_TEST(testDeepFreeze_loop)