test(dm): add a test to make sure there's no problem :P

[lance6716]

Signed-off-by: lance6716 lance6716@gmail.com

What problem does this PR solve?

Issue Number: ref #7493

What is changed and how it works?

simply add a test, no code change

Check List

Tests

• Unit test

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

`None`.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• GMHDBJD
• okJiang

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After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[codecov-commenter]

Codecov Report

Merging #7495 (d3b3787) into master (6b48846) will decrease coverage by 6.0725%.
The diff coverage is 60.7721%.

Additional details and impacted files

Flag	Coverage Δ
cdc	67.3925% <59.9201%> (-0.2453%)	⬇️
dm	52.0385% <50.0000%> (?)
engine	61.2464% <74.0000%> (+0.0626%)	⬆️

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

@@               Coverage Diff                @@
##             master      #7495        +/-   ##
================================================
- Coverage   65.9877%   59.9151%   -6.0726%     
================================================
  Files           564        811       +247     
  Lines         52337      92893     +40556     
================================================
+ Hits          34536      55657     +21121     
- Misses        15129      32390     +17261     
- Partials       2672       4846      +2174     

[GMHDBJD]

LGTM

[lance6716]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: c084457

[ti-chi-bot]

@lance6716: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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 ti-community-infra/tichi repository.

[lance6716]

/run-engine-integration-test

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7510.