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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "jsapi-tests/tests.h"
static const JSClass ObjectEmulatingUndefinedClass = {
"ObjectEmulatingUndefined", JSCLASS_EMULATES_UNDEFINED};
static bool ObjectEmulatingUndefinedConstructor(JSContext* cx, unsigned argc,
JS::Value* vp) {
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
JSObject* obj =
JS_NewObjectForConstructor(cx, &ObjectEmulatingUndefinedClass, args);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
BEGIN_TEST(testObjectEmulatingUndefined_truthy) {
CHECK(JS_InitClass(cx, global, nullptr, nullptr, "ObjectEmulatingUndefined",
ObjectEmulatingUndefinedConstructor, 0, nullptr, nullptr,
nullptr, nullptr));
JS::RootedValue result(cx);
EVAL("if (new ObjectEmulatingUndefined()) true; else false;", &result);
CHECK(result.isFalse());
EVAL("if (!new ObjectEmulatingUndefined()) true; else false;", &result);
CHECK(result.isTrue());
EVAL(
"var obj = new ObjectEmulatingUndefined(); \n"
"var res = []; \n"
"for (var i = 0; i < 50; i++) \n"
" res.push(Boolean(obj)); \n"
"res.every(function(v) { return v === false; });",
&result);
CHECK(result.isTrue());
return true;
}
END_TEST(testObjectEmulatingUndefined_truthy)
BEGIN_TEST(testObjectEmulatingUndefined_equal) {
CHECK(JS_InitClass(cx, global, nullptr, nullptr, "ObjectEmulatingUndefined",
ObjectEmulatingUndefinedConstructor, 0, nullptr, nullptr,
nullptr, nullptr));
JS::RootedValue result(cx);
EVAL("if (new ObjectEmulatingUndefined() == undefined) true; else false;",
&result);
CHECK(result.isTrue());
EVAL("if (new ObjectEmulatingUndefined() == null) true; else false;",
&result);
CHECK(result.isTrue());
EVAL("if (new ObjectEmulatingUndefined() != undefined) true; else false;",
&result);
CHECK(result.isFalse());
EVAL("if (new ObjectEmulatingUndefined() != null) true; else false;",
&result);
CHECK(result.isFalse());
EVAL(
"var obj = new ObjectEmulatingUndefined(); \n"
"var res = []; \n"
"for (var i = 0; i < 50; i++) \n"
" res.push(obj == undefined); \n"
"res.every(function(v) { return v === true; });",
&result);
CHECK(result.isTrue());
EVAL(
"var obj = new ObjectEmulatingUndefined(); \n"
"var res = []; \n"
"for (var i = 0; i < 50; i++) \n"
" res.push(obj == null); \n"
"res.every(function(v) { return v === true; });",
&result);
CHECK(result.isTrue());
EVAL(
"var obj = new ObjectEmulatingUndefined(); \n"
"var res = []; \n"
"for (var i = 0; i < 50; i++) \n"
" res.push(obj != undefined); \n"
"res.every(function(v) { return v === false; });",
&result);
CHECK(result.isTrue());
EVAL(
"var obj = new ObjectEmulatingUndefined(); \n"
"var res = []; \n"
"for (var i = 0; i < 50; i++) \n"
" res.push(obj != null); \n"
"res.every(function(v) { return v === false; });",
&result);
CHECK(result.isTrue());
return true;
}
END_TEST(testObjectEmulatingUndefined_equal)