pkg, scripts: refine the use of require.Error/NoError

[JmPotato]

Signed-off-by: JmPotato ghzpotato@gmail.com

What problem does this PR solve?

Issue Number: ref #4813.

What is changed and how does it work?

Refine the use of require.Error/NoError.

Check List

Tests

• Unit test
• Integration test

Release note

None.

[ti-chi-bot]

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[codecov]

Codecov Report

Merging #5124 (5778309) into master (df25b66) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5124      +/-   ##
==========================================
+ Coverage   75.49%   75.54%   +0.05%     
==========================================
  Files         309      309              
  Lines       30518    30518              
==========================================
+ Hits        23039    23056      +17     
+ Misses       5468     5459       -9     
+ Partials     2011     2003       -8     

Flag	Coverage Δ
unittests	75.54% <ø> (+0.05%)	⬆️

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

Impacted Files	Coverage Δ
pkg/tempurl/tempurl.go	45.00% <0.00%> (-15.00%)	⬇️
pkg/metricutil/metricutil.go	82.75% <0.00%> (-10.35%)	⬇️
server/storage/kv/etcd_kv.go	79.71% <0.00%> (-5.80%)	⬇️
server/schedulers/random_merge.go	60.00% <0.00%> (-3.34%)	⬇️
server/cluster/cluster.go	83.14% <0.00%> (-0.83%)	⬇️
server/schedule/operator_controller.go	85.37% <0.00%> (-0.41%)	⬇️
client/client.go	68.51% <0.00%> (-0.32%)	⬇️
server/id/id.go	80.95% <0.00%> (ø)
server/server.go	73.26% <0.00%> (+0.27%)	⬆️
server/tso/allocator_manager.go	63.39% <0.00%> (+0.33%)	⬆️
... and 12 more

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[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

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[ti-chi-bot]

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

Commit hash: 5778309