remove invalid import package from internal/errors/mysql_test.go

[vankichi]

Signed-off-by: vankichi [email protected]

Description:

This PR will fix invalid import package in Vald.
internal/errors/mysql_test.go imports github.com/pkg/errors but we should not use this in Vald.
I remove this pkg from import and fix a few test codes which is affected by removing.

Related Issue:

How Has This Been Tested?:

Environment:

• Go Version: 1.15.2
• Docker Version: 19.03.8
• Kubernetes Version: 1.18.2
• NGT Version: 1.12.1

Types of changes:

• Bug fix [type/bug]
• New feature [type/feature]
• Add tests [type/test]
• Security related changes [type/security]
• Add documents [type/documentation]
• Refactoring [type/refactoring]
• Update dependencies [type/dependency]
• Update benchmarks and performances [type/bench]
• Update CI [type/ci]

Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
• Have you successfully ran tests with your changes locally?

Checklist:

• I have read the CONTRIBUTING document.
• I have checked open Pull Requests for the similar feature or fixes?
• I have added tests and benchmarks to cover my changes.
• I have ensured all new and existing tests passed.
• I have commented my code, particularly in hard-to-understand areas
• I have updated the documentation accordingly.

[vdaas-ci]

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[codecov]

Codecov Report

Merging #894 (2a29577) into master (f8d5097) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #894      +/-   ##
==========================================
- Coverage   18.85%   18.81%   -0.05%     
==========================================
  Files         423      422       -1     
  Lines       19600    19546      -54     
==========================================
- Hits         3695     3677      -18     
+ Misses      15687    15658      -29     
+ Partials      218      211       -7     

Impacted Files	Coverage Δ
internal/file/watch/watch.go	90.00% <0.00%> (-1.00%)	⬇️
internal/net/net.go
internal/worker/worker.go	83.33% <0.00%> (+1.04%)	⬆️
internal/db/storage/blob/s3/reader/reader.go	97.70% <0.00%> (+32.18%)	⬆️

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[rinx]

LGTM

[kevindiu]

LGTM

[vankichi]

/rebase
/format
/approve

[vdaas-ci]

[REBASE] Rebase triggered by vankichi for branch: test/internal/fix-invalid-import-package-at-errors-mysql

[vdaas-ci]

[FORMAT] Updating license headers and formatting go codes triggered by vankichi.

[vdaas-ci]

[APPROVED] This PR is approved by vankichi.