tests: fix all errors detected by testifylint and enable it

[JmPotato]

What problem does this PR solve?

Issue Number: ref #4813.

What is changed and how does it work?

Fix all errors detected by testifylint and enable it.

Check List

Tests

• Unit test
• Integration test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• HuSharp
• nolouch

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[codecov]

Codecov Report

Merging #7589 (5df0b49) into master (66508f5) will increase coverage by 0.10%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7589      +/-   ##
==========================================
+ Coverage   74.69%   74.80%   +0.10%     
==========================================
  Files         457      457              
  Lines       50397    50397              
==========================================
+ Hits        37646    37698      +52     
+ Misses       9410     9364      -46     
+ Partials     3341     3335       -6     

Flag	Coverage Δ
unittests	74.80% <ø> (+0.10%)	⬆️

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[lhy1024]

why replace suite with re?

[JmPotato]

Using suite.Require() will call t.FailNow() to fatal the test as soon as possible rather than calling t.Fail().

[JmPotato]

/merge

[ti-chi-bot]

@JmPotato: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and 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.

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[ti-chi-bot]

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

Commit hash: 4c87e3b

[ti-chi-bot]

@JmPotato: Your PR was out of date, I have automatically updated it for you.

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.