From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- js/src/jsapi-tests/testSameValue.cpp | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 js/src/jsapi-tests/testSameValue.cpp (limited to 'js/src/jsapi-tests/testSameValue.cpp') diff --git a/js/src/jsapi-tests/testSameValue.cpp b/js/src/jsapi-tests/testSameValue.cpp new file mode 100644 index 000000000..d75c47b94 --- /dev/null +++ b/js/src/jsapi-tests/testSameValue.cpp @@ -0,0 +1,27 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sts=4 et sw=4 tw=99: + */ +/* 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "jsapi-tests/tests.h" + +BEGIN_TEST(testSameValue) +{ + + /* + * NB: passing a double that fits in an integer jsval is API misuse. As a + * matter of defense in depth, however, JS_SameValue should return the + * correct result comparing a positive-zero double to a negative-zero + * double, and this is believed to be the only way to make such a + * comparison possible. + */ + JS::RootedValue v1(cx, JS::DoubleValue(0.0)); + JS::RootedValue v2(cx, JS::DoubleValue(-0.0)); + bool same; + CHECK(JS_SameValue(cx, v1, v2, &same)); + CHECK(!same); + return true; +} +END_TEST(testSameValue) -- cgit v1.2.3