Added V8 date parser test

date_test.go

@@ -313,3 +313,311 @@ func TestDateExportType(t *testing.T) {
 		t.Fatal(typ)
 	}
 }
+
+func TestDateParseV8(t *testing.T) {
+	// Taken from https://chromium.googlesource.com/v8/v8/+/refs/heads/main/test/mjsunit/date-parse.js
+	const SCRIPT = `
+const assertEquals = assert.sameValue,
+	assertTrue = assert;
+
+// 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.
+// Test that we can parse dates in all the different formats that we
+// have to support.
+//
+// These formats are all supported by KJS but a lot of them are not
+// supported by Spidermonkey.
+function testDateParse(string) {
+  var d = Date.parse(string);
+  assertEquals(946713600000, d, "parse: " + string);
+};
+// For local time we just test that parsing returns non-NaN positive
+// number of milliseconds to make it timezone independent.
+function testDateParseLocalTime(string) {
+  var d = Date.parse("parse-local-time:" + string);
+  assertTrue(!isNaN(d), "parse-local-time: " + string + " is NaN.");
+  assertTrue(d > 0, "parse-local-time: " + string + " <= 0.");
+};
+function testDateParseMisc(array) {
+  assertEquals(2, array.length, "array [" + array + "] length != 2.");
+  var string = array[0];
+  var expected = array[1];
+  var d = Date.parse(string);
+  assertEquals(expected, d, "parse-misc: " + string);
+}
+//
+// Test all the formats in UT timezone.
+//
+var testCasesUT = [
+    'Sat, 01-Jan-2000 08:00:00 UT',
+    'Sat, 01 Jan 2000 08:00:00 UT',
+    'Jan 01 2000 08:00:00 UT',
+    'Jan 01 08:00:00 UT 2000',
+    'Saturday, 01-Jan-00 08:00:00 UT',
+    '01 Jan 00 08:00 +0000',
+    // Ignore weekdays.
+    'Mon, 01 Jan 2000 08:00:00 UT',
+    'Tue, 01 Jan 2000 08:00:00 UT',
+    // Ignore prefix that is not part of a date.
+    '[Saturday] Jan 01 08:00:00 UT 2000',
+    'Ignore all of this stuff because it is annoying 01 Jan 2000 08:00:00 UT',
+    '[Saturday] Jan 01 2000 08:00:00 UT',
+    'All of this stuff is really annoying, so it will be ignored Jan 01 2000 08:00:00 UT',
+    // If the three first letters of the month is a
+    // month name we are happy - ignore the rest.
+    'Sat, 01-Janisamonth-2000 08:00:00 UT',
+    'Sat, 01 Janisamonth 2000 08:00:00 UT',
+    'Janisamonth 01 2000 08:00:00 UT',
+    'Janisamonth 01 08:00:00 UT 2000',
+    'Saturday, 01-Janisamonth-00 08:00:00 UT',
+    '01 Janisamonth 00 08:00 +0000',
+    // Allow missing space between month and day.
+    'Janisamonthandtherestisignored01 2000 08:00:00 UT',
+    'Jan01 2000 08:00:00 UT',
+    // Allow year/month/day format.
+    'Sat, 2000/01/01 08:00:00 UT',
+    // Allow month/day/year format.
+    'Sat, 01/01/2000 08:00:00 UT',
+    // Allow month/day year format.
+    'Sat, 01/01 2000 08:00:00 UT',
+    // Allow comma instead of space after day, month and year.
+    'Sat, 01,Jan,2000,08:00:00 UT',
+    // Seconds are optional.
+    'Sat, 01-Jan-2000 08:00 UT',
+    'Sat, 01 Jan 2000 08:00 UT',
+    'Jan 01 2000 08:00 UT',
+    'Jan 01 08:00 UT 2000',
+    'Saturday, 01-Jan-00 08:00 UT',
+    '01 Jan 00 08:00 +0000',
+    // Allow AM/PM after the time.
+    'Sat, 01-Jan-2000 08:00 AM UT',
+    'Sat, 01 Jan 2000 08:00 AM UT',
+    'Jan 01 2000 08:00 AM UT',
+    'Jan 01 08:00 AM UT 2000',
+    'Saturday, 01-Jan-00 08:00 AM UT',
+    '01 Jan 00 08:00 AM +0000',
+    // White space and stuff in parenthesis is
+    // apparently allowed in most places where white
+    // space is allowed.
+    '   Sat,   01-Jan-2000   08:00:00   UT  ',
+    '  Sat,   01   Jan   2000   08:00:00   UT  ',
+    '  Saturday,   01-Jan-00   08:00:00   UT  ',
+    '  01    Jan   00    08:00   +0000   ',
+    ' ()(Sat, 01-Jan-2000)  Sat,   01-Jan-2000   08:00:00   UT  ',
+    '  Sat()(Sat, 01-Jan-2000)01   Jan   2000   08:00:00   UT  ',
+    '  Sat,(02)01   Jan   2000   08:00:00   UT  ',
+    '  Sat,  01(02)Jan   2000   08:00:00   UT  ',
+    '  Sat,  01  Jan  2000 (2001)08:00:00   UT  ',
+    '  Sat,  01  Jan  2000 (01)08:00:00   UT  ',
+    '  Sat,  01  Jan  2000 (01:00:00)08:00:00   UT  ',
+    '  Sat,  01  Jan  2000  08:00:00 (CDT)UT  ',
+    '  Sat,  01  Jan  2000  08:00:00  UT((((CDT))))',
+    '  Saturday,   01-Jan-00 ()(((asfd)))(Sat, 01-Jan-2000)08:00:00   UT  ',
+    '  01    Jan   00    08:00 ()(((asdf)))(Sat, 01-Jan-2000)+0000   ',
+    '  01    Jan   00    08:00   +0000()((asfd)(Sat, 01-Jan-2000)) '];
+//
+// Test that we do the right correction for different time zones.
+// I'll assume that we can handle the same formats as for UT and only
+// test a few formats for each of the timezones.
+//
+// GMT = UT
+var testCasesGMT = [
+    'Sat, 01-Jan-2000 08:00:00 GMT',
+    'Sat, 01-Jan-2000 08:00:00 GMT+0',
+    'Sat, 01-Jan-2000 08:00:00 GMT+00',
+    'Sat, 01-Jan-2000 08:00:00 GMT+000',
+    'Sat, 01-Jan-2000 08:00:00 GMT+0000',
+    'Sat, 01-Jan-2000 08:00:00 GMT+00:00', // Interestingly, KJS cannot handle this.
+    'Sat, 01 Jan 2000 08:00:00 GMT',
+    'Saturday, 01-Jan-00 08:00:00 GMT',
+    '01 Jan 00 08:00 -0000',
+    '01 Jan 00 08:00 +0000'];
+// EST = UT minus 5 hours.
+var testCasesEST = [
+    'Sat, 01-Jan-2000 03:00:00 UTC-0500',
+    'Sat, 01-Jan-2000 03:00:00 UTC-05:00', // Interestingly, KJS cannot handle this.
+    'Sat, 01-Jan-2000 03:00:00 EST',
+    'Sat, 01 Jan 2000 03:00:00 EST',
+    'Saturday, 01-Jan-00 03:00:00 EST',
+    '01 Jan 00 03:00 -0500'];
+// EDT = UT minus 4 hours.
+var testCasesEDT = [
+    'Sat, 01-Jan-2000 04:00:00 EDT',
+    'Sat, 01 Jan 2000 04:00:00 EDT',
+    'Saturday, 01-Jan-00 04:00:00 EDT',
+    '01 Jan 00 04:00 -0400'];
+// CST = UT minus 6 hours.
+var testCasesCST = [
+    'Sat, 01-Jan-2000 02:00:00 CST',
+    'Sat, 01 Jan 2000 02:00:00 CST',
+    'Saturday, 01-Jan-00 02:00:00 CST',
+    '01 Jan 00 02:00 -0600'];
+// CDT = UT minus 5 hours.
+var testCasesCDT = [
+    'Sat, 01-Jan-2000 03:00:00 CDT',
+    'Sat, 01 Jan 2000 03:00:00 CDT',
+    'Saturday, 01-Jan-00 03:00:00 CDT',
+    '01 Jan 00 03:00 -0500'];
+// MST = UT minus 7 hours.
+var testCasesMST = [
+    'Sat, 01-Jan-2000 01:00:00 MST',
+    'Sat, 01 Jan 2000 01:00:00 MST',
+    'Saturday, 01-Jan-00 01:00:00 MST',
+    '01 Jan 00 01:00 -0700'];
+// MDT = UT minus 6 hours.
+var testCasesMDT = [
+    'Sat, 01-Jan-2000 02:00:00 MDT',
+    'Sat, 01 Jan 2000 02:00:00 MDT',
+    'Saturday, 01-Jan-00 02:00:00 MDT',
+    '01 Jan 00 02:00 -0600'];
+// PST = UT minus 8 hours.
+var testCasesPST = [
+    'Sat, 01-Jan-2000 00:00:00 PST',
+    'Sat, 01 Jan 2000 00:00:00 PST',
+    'Saturday, 01-Jan-00 00:00:00 PST',
+    '01 Jan 00 00:00 -0800',
+    // Allow missing time.
+    'Sat, 01-Jan-2000 PST'];
+// PDT = UT minus 7 hours.
+var testCasesPDT = [
+    'Sat, 01-Jan-2000 01:00:00 PDT',
+    'Sat, 01 Jan 2000 01:00:00 PDT',
+    'Saturday, 01-Jan-00 01:00:00 PDT',
+    '01 Jan 00 01:00 -0700'];
+// Local time cases.
+var testCasesLocalTime = [
+    // Allow timezone omission.
+    'Sat, 01-Jan-2000 08:00:00',
+    'Sat, 01 Jan 2000 08:00:00',
+    'Jan 01 2000 08:00:00',
+    'Jan 01 08:00:00 2000',
+    'Saturday, 01-Jan-00 08:00:00',
+    '01 Jan 00 08:00'];
+// Misc. test cases that result in a different time value.
+var testCasesMisc = [
+    // Special handling for years in the [0, 100) range.
+    ['Sat, 01 Jan 0 08:00:00 UT', 946713600000], // year 2000
+    ['Sat, 01 Jan 49 08:00:00 UT', 2493100800000], // year 2049
+    ['Sat, 01 Jan 50 08:00:00 UT', -631123200000], // year 1950
+    ['Sat, 01 Jan 99 08:00:00 UT', 915177600000], // year 1999
+    ['Sat, 01 Jan 100 08:00:00 UT', -59011430400000], // year 100
+    // Test PM after time.
+    ['Sat, 01-Jan-2000 08:00 PM UT', 946756800000],
+    ['Sat, 01 Jan 2000 08:00 PM UT', 946756800000],
+    ['Jan 01 2000 08:00 PM UT', 946756800000],
+    ['Jan 01 08:00 PM UT 2000', 946756800000],
+    ['Saturday, 01-Jan-00 08:00 PM UT', 946756800000],
+    ['01 Jan 00 08:00 PM +0000', 946756800000]];
+// Test different version of the ES5 date time string format.
+var testCasesES5Misc = [
+    ['2000-01-01T08:00:00.000Z', 946713600000],
+    ['2000-01-01T08:00:00Z', 946713600000],
+    ['2000-01-01T08:00Z', 946713600000],
+    ['2000-01T08:00:00.000Z', 946713600000],
+    ['2000T08:00:00.000Z', 946713600000],
+    ['2000T08:00Z', 946713600000],
+    ['2000-01T00:00:00.000-08:00', 946713600000],
+    ['2000-01T08:00:00.001Z', 946713600001],
+    ['2000-01T08:00:00.099Z', 946713600099],
+    ['2000-01T08:00:00.999Z', 946713600999],
+    ['2000-01T00:00:00.001-08:00', 946713600001],
+    ['2000-01-01T24:00Z', 946771200000],
+    ['2000-01-01T24:00:00Z', 946771200000],
+    ['2000-01-01T24:00:00.000Z', 946771200000],
+    ['2000-01-01T24:00:00.000Z', 946771200000]];
+var testCasesES5MiscNegative = [
+    '2000-01-01TZ',
+    '2000-01-01T60Z',
+    '2000-01-01T60:60Z',
+    '2000-01-0108:00Z',
+    '2000-01-01T08Z',
+    '2000-01-01T24:01',
+    '2000-01-01T24:00:01',
+    '2000-01-01T24:00:00.001',
+    '2000-01-01T24:00:00.999Z'];
+// TODO(littledan): This is an hack that could break in historically
+// changing timezones that happened on this day, but allows us to
+// check the date value for local times.
+var localOffset = new Date('2000-01-01').getTimezoneOffset()*1000*60;
+// Sanity check which is even more of a hack: in the timezones where
+// these tests are likely to be run, the offset is nonzero because
+// dates which don't include Z are in the local timezone.
+if (this.Intl &&
+    ["America/Los_Angeles", "Europe/Berlin", "Europe/Madrid"].indexOf(
+        Intl.DateTimeFormat().resolvedOptions().timeZone) != -1) {
+  assertTrue(localOffset != 0);
+}
+var testCasesES2016TZ = [
+    // If the timezone is absent and time is present, use local time
+    ['2000-01-02T00:00', 946771200000 + localOffset],
+    ['2000-01-02T00:00:00', 946771200000 + localOffset],
+    ['2000-01-02T00:00:00.000', 946771200000 + localOffset],
+    // If timezone is absent and time is absent, use UTC
+    ['2000-01-02', 946771200000],
+    ['2000-01-02', 946771200000],
+    ['2000-01-02', 946771200000],
+];
+// Run all the tests.
+testCasesUT.forEach(testDateParse);
+testCasesGMT.forEach(testDateParse);
+testCasesEST.forEach(testDateParse);
+testCasesEDT.forEach(testDateParse);
+testCasesCST.forEach(testDateParse);
+testCasesCDT.forEach(testDateParse);
+testCasesMST.forEach(testDateParse);
+testCasesMDT.forEach(testDateParse);
+testCasesPST.forEach(testDateParse);
+testCasesPDT.forEach(testDateParse);
+testCasesLocalTime.forEach(testDateParseLocalTime);
+testCasesMisc.forEach(testDateParseMisc);
+// ES5 date time string format compliance.
+testCasesES5Misc.forEach(testDateParseMisc);
+testCasesES5MiscNegative.forEach(function (s) {
+    assertTrue(isNaN(Date.parse(s)), s + " is not NaN.");
+});
+testCasesES2016TZ.forEach(testDateParseMisc);
+// Test that we can parse our own date format.
+// (Dates from 1970 to ~2070 with 150h steps.)
+for (var i = 0; i < 24 * 365 * 100; i += 150) {
+  var ms = i * (3600 * 1000);
+  var s = (new Date(ms)).toString();
+  assertEquals(ms, Date.parse(s), "parse own: " + s);
+}
+// Negative tests.
+var testCasesNegative = [
+    'May 25 2008 1:30 (PM)) UTC',  // Bad unmatched ')' after number.
+    'May 25 2008 1:30( )AM (PM)',  //
+    'a1',                          // Issue 126448, 53209.
+    'nasfdjklsfjoaifg1',
+    'x_2',
+    'May 25 2008 AAA (GMT)'];      // Unknown word after number.
+testCasesNegative.forEach(function (s) {
+    assertTrue(isNaN(Date.parse(s)), s + " is not NaN.");
+});
+`
+	testScriptWithTestLib(SCRIPT, _undefined, t)
+}