michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "jsapi-tests/tests.h"
michael@0: 
michael@0: static const JSClass ObjectEmulatingUndefinedClass = {
michael@0:     "ObjectEmulatingUndefined",
michael@0:     JSCLASS_EMULATES_UNDEFINED,
michael@0:     JS_PropertyStub,
michael@0:     JS_DeletePropertyStub,
michael@0:     JS_PropertyStub,
michael@0:     JS_StrictPropertyStub,
michael@0:     JS_EnumerateStub,
michael@0:     JS_ResolveStub,
michael@0:     JS_ConvertStub
michael@0: };
michael@0: 
michael@0: static bool
michael@0: ObjectEmulatingUndefinedConstructor(JSContext *cx, unsigned argc, jsval *vp)
michael@0: {
michael@0:     JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
michael@0:     JSObject *obj = JS_NewObjectForConstructor(cx, &ObjectEmulatingUndefinedClass, args);
michael@0:     if (!obj)
michael@0:         return false;
michael@0:     args.rval().setObject(*obj);
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: BEGIN_TEST(testObjectEmulatingUndefined_truthy)
michael@0: {
michael@0:     CHECK(JS_InitClass(cx, global, js::NullPtr(), &ObjectEmulatingUndefinedClass,
michael@0:                        ObjectEmulatingUndefinedConstructor, 0,
michael@0:                        nullptr, nullptr, nullptr, nullptr));
michael@0: 
michael@0:     JS::RootedValue result(cx);
michael@0: 
michael@0:     EVAL("if (new ObjectEmulatingUndefined()) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_FALSE);
michael@0: 
michael@0:     EVAL("if (!new ObjectEmulatingUndefined()) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("var obj = new ObjectEmulatingUndefined(); \n"
michael@0:          "var res = []; \n"
michael@0:          "for (var i = 0; i < 50; i++) \n"
michael@0:          "  res.push(Boolean(obj)); \n"
michael@0:          "res.every(function(v) { return v === false; });",
michael@0:          &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: END_TEST(testObjectEmulatingUndefined_truthy)
michael@0: 
michael@0: BEGIN_TEST(testObjectEmulatingUndefined_equal)
michael@0: {
michael@0:     CHECK(JS_InitClass(cx, global, js::NullPtr(), &ObjectEmulatingUndefinedClass,
michael@0:                        ObjectEmulatingUndefinedConstructor, 0,
michael@0:                        nullptr, nullptr, nullptr, nullptr));
michael@0: 
michael@0:     JS::RootedValue result(cx);
michael@0: 
michael@0:     EVAL("if (new ObjectEmulatingUndefined() == undefined) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("if (new ObjectEmulatingUndefined() == null) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("if (new ObjectEmulatingUndefined() != undefined) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_FALSE);
michael@0: 
michael@0:     EVAL("if (new ObjectEmulatingUndefined() != null) true; else false;", &result);
michael@0:     CHECK_SAME(result, JSVAL_FALSE);
michael@0: 
michael@0:     EVAL("var obj = new ObjectEmulatingUndefined(); \n"
michael@0:          "var res = []; \n"
michael@0:          "for (var i = 0; i < 50; i++) \n"
michael@0:          "  res.push(obj == undefined); \n"
michael@0:          "res.every(function(v) { return v === true; });",
michael@0:          &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("var obj = new ObjectEmulatingUndefined(); \n"
michael@0:          "var res = []; \n"
michael@0:          "for (var i = 0; i < 50; i++) \n"
michael@0:          "  res.push(obj == null); \n"
michael@0:          "res.every(function(v) { return v === true; });",
michael@0:          &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("var obj = new ObjectEmulatingUndefined(); \n"
michael@0:          "var res = []; \n"
michael@0:          "for (var i = 0; i < 50; i++) \n"
michael@0:          "  res.push(obj != undefined); \n"
michael@0:          "res.every(function(v) { return v === false; });",
michael@0:          &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     EVAL("var obj = new ObjectEmulatingUndefined(); \n"
michael@0:          "var res = []; \n"
michael@0:          "for (var i = 0; i < 50; i++) \n"
michael@0:          "  res.push(obj != null); \n"
michael@0:          "res.every(function(v) { return v === false; });",
michael@0:          &result);
michael@0:     CHECK_SAME(result, JSVAL_TRUE);
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: END_TEST(testObjectEmulatingUndefined_equal)