223158 2021-03-14 00:58:00 -0800 [JSC] Run one Mozilla test explicitly under PST since this test does not work when we are moving from PST to PDT 2021-03-15 09:39:35 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified REOPENED InRadar P2 Normal --- 223187 1 ysuzuki ysuzuki commit-queue mark.lam webkit-bug-importer oldest_to_newest 1739212 0 ysuzuki 2021-03-14 00:58:00 -0800 [JSC] Run one Mozilla test explicitly under PST since this test does not work when we are moving from PST to DST 1739213 1 423120 ysuzuki 2021-03-14 00:59:43 -0800 Created attachment 423120 Patch 1739238 2 423120 mark.lam 2021-03-14 09:36:11 -0700 Comment on attachment 423120 Patch r=me Thanks for fixing this. This bug has been present going back at least 8 years. For 2 hours a year when we switch daylight savings time, this test would always fail. I see that the real change that matters is that you specified "TZ=PST" and use runComplexTest to get it applied to the environment. However, I wasn't able to tease out where our system picks up this env var. Would you mind pointing me to it for future reference? 1739274 3 ysuzuki 2021-03-14 15:08:40 -0700 (In reply to Mark Lam from comment #2) > Comment on attachment 423120 [details] > Patch > > r=me > > Thanks for fixing this. This bug has been present going back at least 8 > years. For 2 hours a year when we switch daylight savings time, this test > would always fail. > > I see that the real change that matters is that you specified "TZ=PST" and > use runComplexTest to get it applied to the environment. However, I wasn't > able to tease out where our system picks up this env var. Would you mind > pointing me to it for future reference? This is ICU. "TZ" environment variable is recognized by ICU, and we use it for ICU date times. And JSC's date implementation is using ICU. 1739275 4 ysuzuki 2021-03-14 15:14:11 -0700 Committed r274405 (235272@main): <https://commits.webkit.org/235272@main> 1739278 5 webkit-bug-importer 2021-03-14 15:15:16 -0700 <rdar://problem/75412033> 1739477 6 commit-queue 2021-03-15 09:39:35 -0700 Re-opened since this is blocked by bug 223187 423120 2021-03-14 00:59:43 -0800 2021-03-14 09:36:11 -0700 Patch bug-223158-20210314005942.patch text/plain 31909 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjc0Mzk1CmRpZmYgLS1naXQgYS9KU1Rlc3RzL0NoYW5nZUxv ZyBiL0pTVGVzdHMvQ2hhbmdlTG9nCmluZGV4IDY3NGVmYmZkNjRlMWJkZThmYzM5MGY2NThjZjYz NmUyNGUyMTQ1N2UuLmVjODcwNDQ3MjI1YWE4NGNiODg5ZTQwOTkyYTY2YjgxY2NmZWYyM2EgMTAw NjQ0Ci0tLSBhL0pTVGVzdHMvQ2hhbmdlTG9nCisrKyBiL0pTVGVzdHMvQ2hhbmdlTG9nCkBAIC0x LDMgKzEsNjEgQEAKKzIwMjEtMDMtMTQgIFl1c3VrZSBTdXp1a2kgIDx5c3V6dWtpQGFwcGxlLmNv bT4KKworICAgICAgICBbSlNDXSBSdW4gb25lIE1vemlsbGEgdGVzdCBleHBsaWNpdGx5IHVuZGVy IFBTVCBzaW5jZSB0aGlzIHRlc3QgZG9lcyBub3Qgd29yayB3aGVuIHdlIGFyZSBtb3ZpbmcgZnJv 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