testSameValue.cpp (966B)
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 "js/Equality.h" // JS::SameValue 9 #include "jsapi-tests/tests.h" 10 11 BEGIN_TEST(testSameValue) { 12 /* 13 * NB: passing a double that fits in an integer jsval is API misuse. As a 14 * matter of defense in depth, however, JS::SameValue should return the 15 * correct result comparing a positive-zero double to a negative-zero 16 * double, and this is believed to be the only way to make such a 17 * comparison possible. 18 */ 19 JS::RootedValue v1(cx, JS::DoubleValue(0.0)); 20 JS::RootedValue v2(cx, JS::DoubleValue(-0.0)); 21 bool same; 22 CHECK(JS::SameValue(cx, v1, v2, &same)); 23 CHECK(!same); 24 return true; 25 } 26 END_TEST(testSameValue)