From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 03:47:29 +0200 Subject: Adding upstream version 115.8.0esr. Signed-off-by: Daniel Baumann --- js/src/tests/non262/Date/time-zone-2038-pst.js | 43 ++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 js/src/tests/non262/Date/time-zone-2038-pst.js (limited to 'js/src/tests/non262/Date/time-zone-2038-pst.js') diff --git a/js/src/tests/non262/Date/time-zone-2038-pst.js b/js/src/tests/non262/Date/time-zone-2038-pst.js new file mode 100644 index 0000000000..2abad4dbfd --- /dev/null +++ b/js/src/tests/non262/Date/time-zone-2038-pst.js @@ -0,0 +1,43 @@ +// |reftest| skip-if(!xulRuntime.shell) + +assertEq(/^(PST|PDT)$/.test(getTimeZone()), true, + "The default time zone is set to PST8PDT for all jstests (when run in the shell)"); + +// U.S. daylight saving rules changed in 2007, excerpt from tzdata's +// northamerica file: +// NAME FROM TO IN ON AT SAVE LETTER/S +// US 1967 2006 Oct lastSun 2:00 0 S +// US 1967 1973 Apr lastSun 2:00 1:00 D +// US 1974 only Jan 6 2:00 1:00 D +// US 1975 only Feb 23 2:00 1:00 D +// US 1976 1986 Apr lastSun 2:00 1:00 D +// US 1987 2006 Apr Sun>=1 2:00 1:00 D +// US 2007 max Mar Sun>=8 2:00 1:00 D +// US 2007 max Nov Sun>=1 2:00 0 S + + +// When 2040 is mapped to 1984, the old U.S. rules are applied, i.e. DST isn't +// yet observed on March 31. If mapped to 2012, the new U.S. rules are applied +// and DST is already observed, which is the expected behaviour. +// A similar effect is visible in November. +// NOTE: This test expects that 2012 and 2040 use the same DST rules. If this +// ever changes, the test needs to be updated accordingly. +{ + let dt1 = new Date(2040, Month.March, 31); + assertDateTime(dt1, "Sat Mar 31 2040 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); + + let dt2 = new Date(2040, Month.November, 1); + assertDateTime(dt2, "Thu Nov 01 2040 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); +} + +// 2038 is mapped to 2027 instead of 1971. +{ + let dt1 = new Date(2038, Month.March, 31); + assertDateTime(dt1, "Wed Mar 31 2038 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); + + let dt2 = new Date(2038, Month.November, 1); + assertDateTime(dt2, "Mon Nov 01 2038 00:00:00 GMT-0700 (PDT)", "Pacific Daylight Time"); +} + +if (typeof reportCompare === "function") + reportCompare(true, true); -- cgit v1.2.3