v8/test/webkit/date-constructor.js
Jungshik Shin e6138f5411 Make date-constructor test more portable
The timezone offset in effect on Dec 25, 1995 won't be applicable
in years far away from 1995 (e.g. year 1111).

Calculate the timezone offset in Feb 1, 1995 and run other tests
on the same day.

This issue has been hidden because the current implementation doesn't
take into account the history of timezone offset changes(crbug.com/3547),
but was exposed when a correct implementation based on ICU was tried.
( https://chromium-review.googlesource.com/c/v8/v8/+/572148 ).

Bug: v8:7268
Test: webkit/date-constructor
Change-Id: I09834cff0baa47d6c8981e7712ebf39541e5ecb7
Reviewed-on: https://chromium-review.googlesource.com/861196
Commit-Queue: Jungshik Shin <jshin@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50515}
2018-01-11 18:44:33 +00:00

92 lines
5.7 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
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// 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
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description(
'This test case tests the Date constructor. ' +
'In particular, it tests many cases of creating a Date from another Date ' +
'and creating a Date from an object that has both valueOf and toString functions.'
);
var object = new Object;
object.valueOf = function() { return 1995; }
object.toString = function() { return "2222"; }
shouldBe('isNaN(new Date(""))', 'true');
var timeZoneOffset = Date.parse("Feb 1 1995") - Date.parse("Feb 1 1995 GMT");
shouldBe('new Date(1995).getTime()', '1995');
shouldBe('new Date(object).getTime()', '1995');
shouldBe('new Date(new Date(1995)).getTime()', '1995');
shouldBe('new Date(new Date(1995).toString()).getTime()', '1000');
shouldBe('new Date(1995, 1).getTime() - timeZoneOffset', '791596800000');
shouldBe('new Date(1995, 1, 1).getTime() - timeZoneOffset', '791596800000');
shouldBe('new Date(1995, 1, 1, 1).getTime() - timeZoneOffset', '791600400000');
shouldBe('new Date(1995, 1, 1, 1, 1).getTime() - timeZoneOffset', '791600460000');
shouldBe('new Date(1995, 1, 1, 1, 1, 1).getTime() - timeZoneOffset', '791600461000');
shouldBe('new Date(1995, 1, 1, 1, 1, 1, 1).getTime() - timeZoneOffset', '791600461001');
shouldBe('new Date(1995, 1, 1, 1, 1, 1, 1, 1).getTime() - timeZoneOffset', '791600461001');
shouldBe('new Date(1995, 1, 1, 1, 1, 1, 1, 1, 1).getTime() - timeZoneOffset', '791600461001');
shouldBe('new Date(new Date(1995, 1)).getTime() - timeZoneOffset', '791596800000');
shouldBe('new Date(new Date(1995, 1, 1)).getTime() - timeZoneOffset', '791596800000');
shouldBe('new Date(new Date(1995, 1, 1, 1)).getTime() - timeZoneOffset', '791600400000');
shouldBe('new Date(new Date(1995, 1, 1, 1, 1)).getTime() - timeZoneOffset', '791600460000');
shouldBe('new Date(new Date(1995, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset', '791600461000');
shouldBe('new Date(new Date(1995, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset', '791600461001');
shouldBe('new Date(new Date(1995, 1, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset', '791600461001');
shouldBe('new Date(new Date(1995, 1, 1, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset', '791600461001');
shouldBe("Number(new Date(new Date(Infinity, 1, 1, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, Infinity, 1, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, Infinity, 1, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, 1, Infinity, 1, 1, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, 1, 1, Infinity, 1, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, 1, 1, 1, Infinity, 1, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, 1, 1, 1, 1, Infinity, 1, 1)).getTime() - timeZoneOffset)", 'Number.NaN');
shouldBe("Number(new Date(new Date(95, 1, 1, 1, 1, 1, 1, 1, Infinity)).getTime() - timeZoneOffset)", '791600461001');
// In Firefox, the results of the following tests are timezone-dependent, which likely implies that the implementation is not quite correct.
// Our results are even worse, though, as the dates are clipped: (new Date(1111, 1201).getTime()) == (new Date(1111, 601).getTime())
// shouldBe('new Date(1111, 1111, 1111, 1111, 1111, 1111, 1111, 1111).getTime() - timeZoneOffset', '-24085894227889');
// shouldBe('new Date(new Date(1111, 1111, 1111, 1111, 1111, 1111, 1111, 1111)).getTime() - timeZoneOffset', '-24085894227889');
// Regression test for Bug 26978 (https://bugs.webkit.org/show_bug.cgi?id=26978)
var testStr = "";
var year = { valueOf: function() { testStr += 1; return 2007; } };
var month = { valueOf: function() { testStr += 2; return 2; } };
var date = { valueOf: function() { testStr += 3; return 4; } };
var hours = { valueOf: function() { testStr += 4; return 13; } };
var minutes = { valueOf: function() { testStr += 5; return 50; } };
var seconds = { valueOf: function() { testStr += 6; return 0; } };
var ms = { valueOf: function() { testStr += 7; return 999; } };
testStr = "";
new Date(year, month, date, hours, minutes, seconds, ms);
shouldBe('testStr', '\"1234567\"');
testStr = "";
Date.UTC(year, month, date, hours, minutes, seconds, ms);
shouldBe('testStr', '\"1234567\"');