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### What changes were proposed in this pull request? - Retry the tests for special date-time values on failure. The tests can potentially fail when reference values were taken before midnight and test code resolves special values after midnight. The retry can guarantees that the tests run during the same day. - Simplify getting of the current timestamp via `Instant.now()`. This should avoid any issues of converting current local datetime to an instance. For example, the same local time can be mapped to 2 instants when clocks are turned backward 1 hour on daylight saving date. - Extract common code to SQLHelper - Set the tested zoneId to the session time zone in `DateTimeUtilsSuite`. ### Why are the changes needed? To make the tests more stable. ### Does this PR introduce any user-facing change? No ### How was this patch tested? By existing test suites `Date`/`TimestampFormatterSuite` and `DateTimeUtilsSuite`. Closes #26380 from MaxGekk/retry-on-fail. Authored-by: Maxim Gekk <max.gekk@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
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