v8/test/webkit/fast/js/read-modify-eval.js
machenbach@chromium.org 3c9efdeeb4 Migrate more tests from blink repository.
The stand-alone test driver is changed a bit:
- Don't use the errorMessage list. It is used differently in the embedded driver. There it collects parser errors - instead of failure messages.
- Remove html links in description texts. Some test descriptions print a web reference.

The migrated tests fall into 3 categories:
1. Tests outside fast/js
2. Tests that print FAIL messages (and also expect those) - these tests should be examined later if they make sense at all
3. Tests with html links in the test description

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/20280003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15889 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-25 19:54:24 +00:00

170 lines
3.9 KiB
JavaScript

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. 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.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
description(
'Tests whether eval() works inside statements that read and modify a value.'
);
function multTest()
{
var x = 1;
x *= eval('2');
return x == 2;
}
function divTest()
{
var x = 2;
x /= eval('2');
return x == 1;
}
function addTest()
{
var x = 0;
x += eval('1');
return x == 1;
}
function subTest()
{
var x = 0;
x -= eval('1');
return x == -1;
}
function lshiftTest()
{
var x = 1;
x <<= eval('1');
return x == 2;
}
function rshiftTest()
{
var x = 1;
x >>= eval('1');
return x == 0;
}
function urshiftTest()
{
var x = 1;
x >>>= eval('1');
return x == 0;
}
function andTest()
{
var x = 1;
x &= eval('1');
return x == 1;
}
function xorTest()
{
var x = 0;
x ^= eval('1');
return x == 1;
}
function orTest()
{
var x = 0;
x |= eval('1');
return x == 1;
}
function modTest()
{
var x = 4;
x %= eval('3');
return x == 1;
}
function preIncTest()
{
var x = { value: 0 };
++eval('x').value;
return x.value == 1;
}
function preDecTest()
{
var x = { value: 0 };
--eval('x').value;
return x.value == -1;
}
function postIncTest()
{
var x = { value: 0 };
eval('x').value++;
return x.value == 1;
}
function postDecTest()
{
var x = { value: 0 };
eval('x').value--;
return x.value == -1;
}
function primitiveThisTest()
{
// Test that conversion of this is persistant over multiple calls to eval,
// even where 'this' is not directly used within the function.
eval('this.value = "Seekrit message";');
return eval('this.value') === "Seekrit message";
}
function strictThisTest()
{
// In a strict mode function primitive this values are not converted, so
// the property access in the first eval is writing a value to a temporary
// object. This throws, per section 8.7.2.
"use strict";
eval('this.value = "Seekrit message";');
return eval('this.value') === undefined;
}
shouldBeTrue('multTest();');
shouldBeTrue('divTest();');
shouldBeTrue('addTest();');
shouldBeTrue('subTest();');
shouldBeTrue('lshiftTest();');
shouldBeTrue('rshiftTest();');
shouldBeTrue('urshiftTest();');
shouldBeTrue('andTest();');
shouldBeTrue('xorTest();');
shouldBeTrue('orTest();');
shouldBeTrue('modTest();');
shouldBeTrue('preIncTest();');
shouldBeTrue('preDecTest();');
shouldBeTrue('postIncTest();');
shouldBeTrue('postDecTest();');
shouldBeTrue('primitiveThisTest.call(1);');
shouldThrow('strictThisTest.call(1);');