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v8/test/mjsunit/date.js
littledan d31c5410c4 [builtins] Apply ES2016 conditional default timezone semantics 
ES2016 changed the default timezone of dates to be conditional on
whether a time is included. The semantics were a compromise approach
based on web compatibility feedback from V8, but until now, we have been
shipping ES5.1 default timezone semantics. This patch implements the
new semantics, following ChakraCore and SpiderMonkey (though JSC
implements V8's previous semantics).

BUG=chromium:589858

Review-Url: https://codereview.chromium.org/2648603002
Cr-Commit-Position: refs/heads/master@{#43239}
2017-02-16 10:02:01 +00:00

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// Copyright 2008 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 date construction from other dates.
var date0 = new Date(1111);
var date1 = new Date(date0);
assertEquals(1111, date0.getTime());
assertEquals(date0.getTime(), date1.getTime());
var date2 = new Date(date0.toString());
assertEquals(1000, date2.getTime());
// Test that dates may contain commas.
var date0 = Date.parse("Dec 25 1995 1:30");
var date1 = Date.parse("Dec 25, 1995 1:30");
var date2 = Date.parse("Dec 25 1995, 1:30");
var date3 = Date.parse("Dec 25, 1995, 1:30");
assertEquals(date0, date1);
assertEquals(date1, date2);
assertEquals(date2, date3);
// Test limits (+/-1e8 days from epoch)
var dMax = new Date(8.64e15);
assertEquals(8.64e15, dMax.getTime());
assertEquals(275760, dMax.getFullYear());
assertEquals(8, dMax.getMonth());
assertEquals(13, dMax.getUTCDate());
var dOverflow = new Date(8.64e15+1);
assertTrue(isNaN(dOverflow.getTime()));
var dMin = new Date(-8.64e15);
assertEquals(-8.64e15, dMin.getTime());
assertEquals(-271821, dMin.getFullYear());
assertEquals(3, dMin.getMonth());
assertEquals(20, dMin.getUTCDate());
var dUnderflow = new Date(-8.64e15-1);
assertTrue(isNaN(dUnderflow.getTime()));
// Tests inspired by js1_5/Date/regress-346363.js
// Year
var a = new Date();
a.setFullYear();
a.setFullYear(2006);
assertEquals(2006, a.getFullYear());
var b = new Date();
b.setUTCFullYear();
b.setUTCFullYear(2006);
assertEquals(2006, b.getUTCFullYear());
// Month
var c = new Date();
c.setMonth();
c.setMonth(2);
assertTrue(isNaN(c.getMonth()));
var d = new Date();
d.setUTCMonth();
d.setUTCMonth(2);
assertTrue(isNaN(d.getUTCMonth()));
// Date
var e = new Date();
e.setDate();
e.setDate(2);
assertTrue(isNaN(e.getDate()));
var f = new Date();
f.setUTCDate();
f.setUTCDate(2);
assertTrue(isNaN(f.getUTCDate()));
// Hours
var g = new Date();
g.setHours();
g.setHours(2);
assertTrue(isNaN(g.getHours()));
var h = new Date();
h.setUTCHours();
h.setUTCHours(2);
assertTrue(isNaN(h.getUTCHours()));
// Minutes
var g = new Date();
g.setMinutes();
g.setMinutes(2);
assertTrue(isNaN(g.getMinutes()));
var h = new Date();
h.setUTCHours();
h.setUTCHours(2);
assertTrue(isNaN(h.getUTCHours()));
// Seconds
var i = new Date();
i.setSeconds();
i.setSeconds(2);
assertTrue(isNaN(i.getSeconds()));
var j = new Date();
j.setUTCSeconds();
j.setUTCSeconds(2);
assertTrue(isNaN(j.getUTCSeconds()));
// Milliseconds
var k = new Date();
k.setMilliseconds();
k.setMilliseconds(2);
assertTrue(isNaN(k.getMilliseconds()));
var l = new Date();
l.setUTCMilliseconds();
l.setUTCMilliseconds(2);
assertTrue(isNaN(l.getUTCMilliseconds()));
// Test that -0 is treated correctly in MakeDay.
var d = new Date();
assertDoesNotThrow("d.setDate(-0)");
assertDoesNotThrow("new Date(-0, -0, -0, -0, -0, -0, -0)");
assertDoesNotThrow("new Date(0x40000000, 0x40000000, 0x40000000," +
"0x40000000, 0x40000000, 0x40000000, 0x40000000)")
assertDoesNotThrow("new Date(-0x40000001, -0x40000001, -0x40000001," +
"-0x40000001, -0x40000001, -0x40000001, -0x40000001)")
// Modified test from WebKit
// LayoutTests/fast/js/script-tests/date-utc-timeclip.js:
assertEquals(8639999999999999, Date.UTC(275760, 8, 12, 23, 59, 59, 999));
assertEquals(8640000000000000, Date.UTC(275760, 8, 13));
assertTrue(isNaN(Date.UTC(275760, 8, 13, 0, 0, 0, 1)));
assertTrue(isNaN(Date.UTC(275760, 8, 14)));
assertEquals(Date.UTC(-271821, 3, 20, 0, 0, 0, 1), -8639999999999999);
assertEquals(Date.UTC(-271821, 3, 20), -8640000000000000);
assertTrue(isNaN(Date.UTC(-271821, 3, 19, 23, 59, 59, 999)));
assertTrue(isNaN(Date.UTC(-271821, 3, 19)));
// Test creation with large date values.
d = new Date(1969, 12, 1, 99999999999);
assertTrue(isNaN(d.getTime()));
d = new Date(1969, 12, 1, -99999999999);
assertTrue(isNaN(d.getTime()));
d = new Date(1969, 12, 1, Infinity);
assertTrue(isNaN(d.getTime()));
d = new Date(1969, 12, 1, -Infinity);
assertTrue(isNaN(d.getTime()));
d = new Date(1969, 12, 1, 0);
d.setTime(Math.pow(2, 64));
assertTrue(isNaN(d.getTime()));
d = new Date(1969, 12, 1, 0);
d.setTime(Math.pow(-2, 64));
assertTrue(isNaN(d.getTime()));
// Test creation with obscure date values.
assertEquals(8640000000000000, Date.UTC(1970, 0, 1 + 100000001, -24));
assertEquals(-8640000000000000, Date.UTC(1970, 0, 1 - 100000001, 24));
// Parsing ES5 ISO-8601 dates.
// When TZ is omitted, it defaults to the local timezone if there is
// no time, and to UTC if a time is provided. This file tests the
// "timezone present" case; timezone absent is tested by test/mjsunit/date-parse.js
// Check epoch.
assertEquals(0, Date.parse("1970-01-01T00:00:00.000+00:00"));
assertEquals(0, Date.parse("1970-01-01T00:00:00.000-00:00"));
assertEquals(0, Date.parse("1970-01-01T00:00:00.000Z"));
assertEquals(0, Date.parse("1970-01-01T00:00:00.000Z"));
assertEquals(0, Date.parse("1970-01-01T00:00:00Z"));
assertEquals(0, Date.parse("1970-01-01T00:00Z"));
assertEquals(0, Date.parse("1970-01-01Z"));
assertEquals(0, Date.parse("1970-01T00:00:00.000+00:00"));
assertEquals(0, Date.parse("1970-01T00:00:00.000-00:00"));
assertEquals(0, Date.parse("1970-01T00:00:00.000Z"));
assertEquals(0, Date.parse("1970-01T00:00:00.000Z"));
assertEquals(0, Date.parse("1970-01T00:00:00Z"));
assertEquals(0, Date.parse("1970-01T00:00Z"));
assertEquals(0, Date.parse("1970-01Z"));
assertEquals(0, Date.parse("1970T00:00:00.000+00:00"));
assertEquals(0, Date.parse("1970T00:00:00.000-00:00"));
assertEquals(0, Date.parse("1970T00:00:00.000Z"));
assertEquals(0, Date.parse("1970T00:00:00.000Z"));
assertEquals(0, Date.parse("1970T00:00:00Z"));
assertEquals(0, Date.parse("1970T00:00Z"));
assertEquals(0, Date.parse("1970Z"));
assertEquals(0, Date.parse("+001970-01-01T00:00:00.000+00:00"));
assertEquals(0, Date.parse("+001970-01-01T00:00:00.000-00:00"));
assertEquals(0, Date.parse("+001970-01-01T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970-01-01T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970-01-01T00:00:00Z"));
assertEquals(0, Date.parse("+001970-01-01T00:00Z"));
assertEquals(0, Date.parse("+001970-01-01Z"));
assertEquals(0, Date.parse("+001970-01T00:00:00.000+00:00"));
assertEquals(0, Date.parse("+001970-01T00:00:00.000-00:00"));
assertEquals(0, Date.parse("+001970-01T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970-01T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970-01T00:00:00Z"));
assertEquals(0, Date.parse("+001970-01T00:00Z"));
assertEquals(0, Date.parse("+001970-01Z"));
assertEquals(0, Date.parse("+001970T00:00:00.000+00:00"));
assertEquals(0, Date.parse("+001970T00:00:00.000-00:00"));
assertEquals(0, Date.parse("+001970T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970T00:00:00.000Z"));
assertEquals(0, Date.parse("+001970T00:00:00Z"));
assertEquals(0, Date.parse("+001970T00:00Z"));
assertEquals(0, Date.parse("+001970Z"));
// Check random date.
assertEquals(70671003500, Date.parse("1972-03-28T23:50:03.500+01:00"));
assertEquals(70674603500, Date.parse("1972-03-28T23:50:03.500Z"));
assertEquals(70674603500, Date.parse("1972-03-28T23:50:03.500Z"));
assertEquals(70674603000, Date.parse("1972-03-28T23:50:03Z"));
assertEquals(70674600000, Date.parse("1972-03-28T23:50Z"));
assertEquals(70588800000, Date.parse("1972-03-28Z"));
assertEquals(68338203500, Date.parse("1972-03T23:50:03.500+01:00"));
assertEquals(68341803500, Date.parse("1972-03T23:50:03.500Z"));
assertEquals(68341803500, Date.parse("1972-03T23:50:03.500Z"));
assertEquals(68341803000, Date.parse("1972-03T23:50:03Z"));
assertEquals(68341800000, Date.parse("1972-03T23:50Z"));
assertEquals(68256000000, Date.parse("1972-03Z"));
assertEquals(63154203500, Date.parse("1972T23:50:03.500+01:00"));
assertEquals(63157803500, Date.parse("1972T23:50:03.500Z"));
assertEquals(63157803500, Date.parse("1972T23:50:03.500Z"));
assertEquals(63157803000, Date.parse("1972T23:50:03Z"));
assertEquals(63072000000, Date.parse("1972Z"));
assertEquals(70671003500, Date.parse("+001972-03-28T23:50:03.500+01:00"));
assertEquals(70674603500, Date.parse("+001972-03-28T23:50:03.500Z"));
assertEquals(70674603500, Date.parse("+001972-03-28T23:50:03.500Z"));
assertEquals(70674603000, Date.parse("+001972-03-28T23:50:03Z"));
assertEquals(70674600000, Date.parse("+001972-03-28T23:50Z"));
assertEquals(70588800000, Date.parse("+001972-03-28Z"));
assertEquals(68338203500, Date.parse("+001972-03T23:50:03.500+01:00"));
assertEquals(68341803500, Date.parse("+001972-03T23:50:03.500Z"));
assertEquals(68341803500, Date.parse("+001972-03T23:50:03.500Z"));
assertEquals(68341803000, Date.parse("+001972-03T23:50:03Z"));
assertEquals(68341800000, Date.parse("+001972-03T23:50Z"));
assertEquals(68256000000, Date.parse("+001972-03Z"));
assertEquals(63154203500, Date.parse("+001972T23:50:03.500+01:00"));
assertEquals(63157803500, Date.parse("+001972T23:50:03.500Z"));
assertEquals(63157803500, Date.parse("+001972T23:50:03.500Z"));
assertEquals(63157803000, Date.parse("+001972T23:50:03Z"));
assertEquals(63072000000, Date.parse("+001972Z"));
// Ensure that ISO-years in the range 00-99 aren't translated to the range
// 1950..2049.
assertEquals(-60904915200000, Date.parse("0040-01-01T00:00Z"));
assertEquals(-60273763200000, Date.parse("0060-01-01T00:00Z"));
assertEquals(-62167219200000, Date.parse("0000-01-01T00:00Z"));
assertEquals(-62167219200000, Date.parse("+000000-01-01T00:00Z"));
// Test negative years.
assertEquals(-63429523200000, Date.parse("-000040-01-01Z"));
assertEquals(-64060675200000, Date.parse("-000060-01-01Z"));
assertEquals(-124397510400000, Date.parse("-001972-01-01Z"));
// Check time-zones.
assertEquals(70674603500, Date.parse("1972-03-28T23:50:03.500Z"));
for (var i = 0; i < 24; i++) {
var hh = (i < 10) ? "0" + i : "" + i;
for (var j = 0; j < 60; j += 15) {
var mm = (j < 10) ? "0" + j : "" + j;
var ms = (i * 60 + j) * 60000;
var string = "1972-03-28T23:50:03.500-" + hh + ":" + mm;
assertEquals(70674603500 + ms, Date.parse(string), string);
string = "1972-03-28T23:50:03.500+" + hh + ":" + mm;
assertEquals(70674603500 - ms, Date.parse(string), string);
}
}
assertThrows('Date.prototype.setTime.call("", 1);', TypeError);
assertThrows('Date.prototype.setYear.call("", 1);', TypeError);
assertThrows('Date.prototype.setHours.call("", 1, 2, 3, 4);', TypeError);
assertThrows('Date.prototype.getDate.call("");', TypeError);
assertThrows('Date.prototype.getUTCDate.call("");', TypeError);
assertThrows(function() { Date.prototype.getTime.call(0) }, TypeError);
assertThrows(function() { Date.prototype.getTime.call("") }, TypeError);
assertThrows(function() { Date.prototype.getYear.call(0) }, TypeError);
assertThrows(function() { Date.prototype.getYear.call("") }, TypeError);
(function TestDatePrototypeOrdinaryObject() {
assertEquals(Object.prototype, Date.prototype.__proto__);
assertThrows(function () { Date.prototype.toString() }, TypeError);
})();
delete Date.prototype.getUTCFullYear;
delete Date.prototype.getUTCMonth;
delete Date.prototype.getUTCDate;
delete Date.prototype.getUTCHours;
delete Date.prototype.getUTCMinutes;
delete Date.prototype.getUTCSeconds;
delete Date.prototype.getUTCMilliseconds;
(new Date()).toISOString();
(function TestDeleteToString() {
assertTrue(delete Date.prototype.toString);
assertTrue('[object Date]' !== Date());
})();
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