The Tor Browser: js/src/jsapi-tests/testObjectEmulatingUndefined.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "jsapi-tests/tests.h"

     7 static const JSClass ObjectEmulatingUndefinedClass = {

     8     "ObjectEmulatingUndefined",

     9     JSCLASS_EMULATES_UNDEFINED,

    10     JS_PropertyStub,

    11     JS_DeletePropertyStub,

    12     JS_PropertyStub,

    13     JS_StrictPropertyStub,

    14     JS_EnumerateStub,

    15     JS_ResolveStub,

    16     JS_ConvertStub

    17 };

    19 static bool

    20 ObjectEmulatingUndefinedConstructor(JSContext *cx, unsigned argc, jsval *vp)

    21 {

    22     JS::CallArgs args = JS::CallArgsFromVp(argc, vp);

    23     JSObject *obj = JS_NewObjectForConstructor(cx, &ObjectEmulatingUndefinedClass, args);

    24     if (!obj)

    25         return false;

    26     args.rval().setObject(*obj);

    27     return true;

    28 }

    30 BEGIN_TEST(testObjectEmulatingUndefined_truthy)

    31 {

    32     CHECK(JS_InitClass(cx, global, js::NullPtr(), &ObjectEmulatingUndefinedClass,

    33                        ObjectEmulatingUndefinedConstructor, 0,

    34                        nullptr, nullptr, nullptr, nullptr));

    36     JS::RootedValue result(cx);

    38     EVAL("if (new ObjectEmulatingUndefined()) true; else false;", &result);

    39     CHECK_SAME(result, JSVAL_FALSE);

    41     EVAL("if (!new ObjectEmulatingUndefined()) true; else false;", &result);

    42     CHECK_SAME(result, JSVAL_TRUE);

    44     EVAL("var obj = new ObjectEmulatingUndefined(); \n"

    45          "var res = []; \n"

    46          "for (var i = 0; i < 50; i++) \n"

    47          "  res.push(Boolean(obj)); \n"

    48          "res.every(function(v) { return v === false; });",

    49          &result);

    50     CHECK_SAME(result, JSVAL_TRUE);

    52     return true;

    53 }

    54 END_TEST(testObjectEmulatingUndefined_truthy)

    56 BEGIN_TEST(testObjectEmulatingUndefined_equal)

    57 {

    58     CHECK(JS_InitClass(cx, global, js::NullPtr(), &ObjectEmulatingUndefinedClass,

    59                        ObjectEmulatingUndefinedConstructor, 0,

    60                        nullptr, nullptr, nullptr, nullptr));

    62     JS::RootedValue result(cx);

    64     EVAL("if (new ObjectEmulatingUndefined() == undefined) true; else false;", &result);

    65     CHECK_SAME(result, JSVAL_TRUE);

    67     EVAL("if (new ObjectEmulatingUndefined() == null) true; else false;", &result);

    68     CHECK_SAME(result, JSVAL_TRUE);

    70     EVAL("if (new ObjectEmulatingUndefined() != undefined) true; else false;", &result);

    71     CHECK_SAME(result, JSVAL_FALSE);

    73     EVAL("if (new ObjectEmulatingUndefined() != null) true; else false;", &result);

    74     CHECK_SAME(result, JSVAL_FALSE);

    76     EVAL("var obj = new ObjectEmulatingUndefined(); \n"

    77          "var res = []; \n"

    78          "for (var i = 0; i < 50; i++) \n"

    79          "  res.push(obj == undefined); \n"

    80          "res.every(function(v) { return v === true; });",

    81          &result);

    82     CHECK_SAME(result, JSVAL_TRUE);

    84     EVAL("var obj = new ObjectEmulatingUndefined(); \n"

    85          "var res = []; \n"

    86          "for (var i = 0; i < 50; i++) \n"

    87          "  res.push(obj == null); \n"

    88          "res.every(function(v) { return v === true; });",

    89          &result);

    90     CHECK_SAME(result, JSVAL_TRUE);

    92     EVAL("var obj = new ObjectEmulatingUndefined(); \n"

    93          "var res = []; \n"

    94          "for (var i = 0; i < 50; i++) \n"

    95          "  res.push(obj != undefined); \n"

    96          "res.every(function(v) { return v === false; });",

    97          &result);

    98     CHECK_SAME(result, JSVAL_TRUE);

   100     EVAL("var obj = new ObjectEmulatingUndefined(); \n"

   101          "var res = []; \n"

   102          "for (var i = 0; i < 50; i++) \n"

   103          "  res.push(obj != null); \n"

   104          "res.every(function(v) { return v === false; });",

   105          &result);

   106     CHECK_SAME(result, JSVAL_TRUE);

   108     return true;

   109 }

   110 END_TEST(testObjectEmulatingUndefined_equal)

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