tests: fix some tests failed when system_time_zone != Asia/Shanghai

[Defined2014]

What problem does this PR solve?

Issue Number: ref #49493

Problem Summary: Deal with TestTiDBTrx, TestSetTransactionReadOnlyAsOf and flashback cluster related problems.

Just a workround for flashback cluster related test cases. The root case is #49555.

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[tiprow]

Hi @Defined2014. Thanks for your PR.

PRs from untrusted users cannot be marked as trusted with /ok-to-test in this repo meaning untrusted PR authors can never trigger tests themselves. Collaborators can still trigger tests on the PR using /test all.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[codecov]

Codecov Report

Merging #49557 (90c5d88) into master (3a7bd53) will increase coverage by 0.5529%.
Report is 7 commits behind head on master.
The diff coverage is 0.0000%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #49557        +/-   ##
================================================
+ Coverage   71.0009%   71.5538%   +0.5529%     
================================================
  Files          1368       1418        +50     
  Lines        399478     416619     +17141     
================================================
+ Hits         283633     298107     +14474     
- Misses        96044      99708      +3664     
+ Partials      19801      18804       -997     

Flag	Coverage Δ
integration	43.7315% <0.0000%> (?)
unit	71.0008% <ø> (-0.0001%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	53.9663% <ø> (ø)
parser	∅ <ø> (∅)
br	47.7603% <ø> (-5.1346%)	⬇️

[zimulala]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, zimulala

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [hawkingrei,zimulala]
• pkg/ddl/OWNERS [zimulala]
• pkg/infoschema/OWNERS [zimulala]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-18 10:10:43.785100769 +0000 UTC m=+869334.822327680: ☑️ agreed by zimulala.
• 2023-12-18 10:56:09.032610857 +0000 UTC m=+872060.069837784: ☑️ agreed by hawkingrei.

[hawkingrei]

/hold

Can you remove the timezone config in the bazel config.

[Defined2014]

/hold

Can you remove the timezone config in the bazel config.

Not fixed all related test cases, I will do it after #49493 closed.

[Defined2014]

/unhold