br: add unit test for restore pkg

[Leavrth]

What problem does this PR solve?

Issue Number: ref #52877

Problem Summary:
add unit test for restore pkg

What changed and how does it work?

add unit test for restore pkg

1. introduce a new package utiltest to implement the public fake client used for unit test.
2. add more unit tests to cover the restore package internal sub-packages, such as import client, split client, db and some util codes.
3. add more unit tests for log client and snap client pakcages.

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 @Leavrth. 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.

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[codecov]

Codecov Report

Attention: Patch coverage is 92.92929% with 7 lines in your changes missing coverage. Please review.

Project coverage is 57.9224%. Comparing base (97aac23) to head (ccaffc5).
Report is 121 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #53477         +/-   ##
=================================================
- Coverage   72.4404%   57.9224%   -14.5180%     
=================================================
  Files          1507       1665        +158     
  Lines        430584     632052     +201468     
=================================================
+ Hits         311917     366100      +54183     
- Misses        99367     241560     +142193     
- Partials      19300      24392       +5092     

Flag	Coverage Δ
integration	39.8260% <7.6923%> (?)
unit	72.3858% <92.9292%> (+0.9618%)	⬆️

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

Components	Coverage Δ
dumpling	52.9656% <ø> (-1.0302%)	⬇️
parser	∅ <ø> (∅)
br	61.7275% <92.9292%> (+20.2691%)	⬆️

[Leavrth]

/retest

[tiprow]

@Leavrth: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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-sigs/prow repository.

[YuJuncen]

rest lgtm

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, YuJuncen

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Needs approval from an approver in each of these files:

• br/OWNERS [BornChanger,YuJuncen]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-05 08:49:24.001913489 +0000 UTC m=+3457517.759049082: ☑️ agreed by BornChanger.
• 2024-06-18 02:11:43.021287787 +0000 UTC m=+80829.506776617: ☑️ agreed by YuJuncen.

[Leavrth]

/ok-to-test

[Leavrth]

/retest

[Leavrth]

/retest

[tiprow]

@Leavrth: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
tidb_parser_test	ccaffc5	link	true	/test tidb_parser_test
fast_test_tiprow	ccaffc5	link	true	/test fast_test_tiprow

Full PR test history. Your PR dashboard.

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-sigs/prow repository. I understand the commands that are listed here.