v8/test/mjsunit/samevalue.js
Yang Guo 5c8560a7e9 Remove vestiges of debug context.
We no longer implement part of the debugger in JS. Therefore we can
remove the infrastructure to support this in the bootstrapper.

Also includes some drive-by cleanups.

Bug: v8:5530

R=petermarshall@chromium.org

Change-Id: I06628a559c17f99c70029fcc94848b0c78f1d3e9
Reviewed-on: https://chromium-review.googlesource.com/c/1369945
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58140}
2018-12-11 07:11:53 +00:00

124 lines
4.6 KiB
JavaScript

// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax
// Test the SameValue and SameValueZero internal methods.
var obj1 = {x: 10, y: 11, z: "test"};
var obj2 = {x: 10, y: 11, z: "test"};
// Object.is() uses the SameValue algorithm.
var sameValue = Object.is;
// Set#has() uses the SameValueZero algorithm.
var sameValueZero = (x, y) => new Set([x]).has(y);
// Calls SameValue and SameValueZero and checks that their results match.
function sameValueBoth(a, b) {
var result = sameValue(a, b);
assertTrue(result === sameValueZero(a, b));
return result;
}
// Calls SameValue and SameValueZero and checks that their results don't match.
function sameValueZeroOnly(a, b) {
var result = sameValueZero(a, b);
assertTrue(result && !sameValue(a, b));
return result;
}
assertTrue(sameValueBoth(0, 0));
assertTrue(sameValueBoth(+0, +0));
assertTrue(sameValueBoth(-0, -0));
assertTrue(sameValueBoth(1, 1));
assertTrue(sameValueBoth(2, 2));
assertTrue(sameValueBoth(-1, -1));
assertTrue(sameValueBoth(0.5, 0.5));
assertTrue(sameValueBoth(true, true));
assertTrue(sameValueBoth(false, false));
assertTrue(sameValueBoth(NaN, NaN));
assertTrue(sameValueBoth(null, null));
assertTrue(sameValueBoth("foo", "foo"));
assertTrue(sameValueBoth(obj1, obj1));
// Undefined values.
assertTrue(sameValueBoth());
assertTrue(sameValueBoth(undefined, undefined));
assertFalse(sameValueBoth(0,1));
assertFalse(sameValueBoth("foo", "bar"));
assertFalse(sameValueBoth(obj1, obj2));
assertFalse(sameValueBoth(true, false));
assertFalse(sameValueBoth(obj1, true));
assertFalse(sameValueBoth(obj1, "foo"));
assertFalse(sameValueBoth(obj1, 1));
assertFalse(sameValueBoth(obj1, undefined));
assertFalse(sameValueBoth(obj1, NaN));
assertFalse(sameValueBoth(undefined, true));
assertFalse(sameValueBoth(undefined, "foo"));
assertFalse(sameValueBoth(undefined, 1));
assertFalse(sameValueBoth(undefined, obj1));
assertFalse(sameValueBoth(undefined, NaN));
assertFalse(sameValueBoth(NaN, true));
assertFalse(sameValueBoth(NaN, "foo"));
assertFalse(sameValueBoth(NaN, 1));
assertFalse(sameValueBoth(NaN, obj1));
assertFalse(sameValueBoth(NaN, undefined));
assertFalse(sameValueBoth("foo", true));
assertFalse(sameValueBoth("foo", 1));
assertFalse(sameValueBoth("foo", obj1));
assertFalse(sameValueBoth("foo", undefined));
assertFalse(sameValueBoth("foo", NaN));
assertFalse(sameValueBoth(true, 1));
assertFalse(sameValueBoth(true, obj1));
assertFalse(sameValueBoth(true, undefined));
assertFalse(sameValueBoth(true, NaN));
assertFalse(sameValueBoth(true, "foo"));
assertFalse(sameValueBoth(1, true));
assertFalse(sameValueBoth(1, obj1));
assertFalse(sameValueBoth(1, undefined));
assertFalse(sameValueBoth(1, NaN));
assertFalse(sameValueBoth(1, "foo"));
// Special string cases.
assertFalse(sameValueBoth("1", 1));
assertFalse(sameValueBoth("true", true));
assertFalse(sameValueBoth("false", false));
assertFalse(sameValueBoth("undefined", undefined));
assertFalse(sameValueBoth("NaN", NaN));
// SameValue considers -0 and +0 to be different; SameValueZero considers
// -0 and +0 to be the same.
assertTrue(sameValueZeroOnly(+0, -0));
assertTrue(sameValueZeroOnly(-0, +0));