Trinidad chooseDate golden files break with daylight savings
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Key: TRINIDAD-1419
URL: https://issues.apache.org/jira/browse/TRINIDAD-1419
Project: MyFaces Trinidad
Issue Type: Bug
Components: Components
Reporter: Yee-Wah Lee
This is a result of Trinidad-1349. The server and client both use the current
date (System.currentTimeMillis) to determine the timezone offset, called
baseTZOffset. If the date being rendered has a different timezone offset
(called currTZOffset), it will append the timezone offset of the server in that
particular date-link. The client uses currTZOffset to calculate how many hours
to adjust the selected date-time by.
The code solves the problem mentioned in the original bug, but it also causes
problems for the chooseDate golden files. The baseTZOffset shifts depending on
the current daylight settings, hence the link being generated will reflect that
difference.
For example, suppose chooseDate test uses current date as July 27 2005, and
timezone in trinidad-config is set to "Pacific Standard Time". In PST, the
timezone offset is -8h (-480) . In PDT, the timezone offset is -7h (-420),
which is also the timezone offset of July 27 2005.
chooseDate golden file in PST
<a onclick="return _calsd('dateid',1122447600000, -420)"
because baseTZOffset = -480, currTZOffset = -420. The client needs to use -420
when calculating the timezone difference on that day.
chooseDate golden file in PDT:
<a onclick="return _calsd('dateid',1122447600000)"
because baseTZoffset = currTZOffset = -420. The client can directly use
baseTZoffset.
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