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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/Date/time-zone-2038-pst.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Date/time-zone-2038-pst.js | 43 |
1 files changed, 43 insertions, 0 deletions
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); |