Add test for gzip_option

[hlts2]

Signed-off-by: hlts2 hiroto.funakoshi.hiroto@gmail.com

Description:

I added test for gzip_option.go.

Related Issue:

How Has This Been Tested?:

Environment:

• Go Version: 1.14.4
• Docker Version: 19.03.8
• Kubernetes Version: 1.18.2
• NGT Version: 1.12.0

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.

[pull-assistant]

Best reviewed: commit by commit

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Optimal code review plan

     feat: add test for gzip_option

     feat: add comment

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[vdaas-ci]

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[codecov]

Codecov Report

Merging #625 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #625   +/-   ##
=======================================
  Coverage   13.73%   13.74%           
=======================================
  Files         409      409           
  Lines       21516    21516           
=======================================
+ Hits         2955     2957    +2     
+ Misses      18285    18284    -1     
+ Partials      276      275    -1     

Impacted Files	Coverage Δ
internal/compress/gzip_option.go	84.61% <ø> (+15.38%)	⬆️
internal/worker/worker.go	84.54% <0.00%> (ø)

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[kevindiu]

LGTM

[vankichi]

LGTM

[vankichi]

/rebase
/format
/approve

[vdaas-ci]

[REBASE] Rebase triggered by vankichi for branch: test/internal/compress/gzip_option

[vdaas-ci]

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

[vdaas-ci]

[APPROVED] This PR is approved by vankichi.