Add test for internal/compress/gob.go

[hlts2]

Description:

I added test case for internal/compress/gob.go and I refactored based on code guideline.

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

---

Optimal code review plan

     feat: add test case

     feat: add test case

     feat: add e2e test

     feat: typo

     feat: lint warning

     fix: apply suggestion

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[vdaas-ci]

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• 🙆‍♀️ /approve - approve
• 💌 /changelog - add changelog comment
• 🍱 /format - format codes and add licenses
• ✅ /gen-test - generate test codes
• 🏷️ /label - add labels
• ⏪ /rebase - rebase master

[codecov]

Codecov Report

Merging #646 into master will increase coverage by 0.13%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #646      +/-   ##
==========================================
+ Coverage   15.13%   15.26%   +0.13%     
==========================================
  Files         411      411              
  Lines       21537    21535       -2     
==========================================
+ Hits         3259     3288      +29     
+ Misses      18024    17996      -28     
+ Partials      254      251       -3     

Impacted Files	Coverage Δ
internal/compress/gob.go	100.00% <100.00%> (+72.09%)	⬆️
internal/worker/queue.go	95.65% <0.00%> (-2.90%)	⬇️
internal/worker/worker.go	85.45% <0.00%> (+0.90%)	⬆️
internal/errgroup/group.go	94.73% <0.00%> (+1.31%)	⬆️

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[kevindiu]

LGTM

[vankichi]

LGTM

[vankichi]

/rebase
/format
/approve

[vdaas-ci]

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

[vdaas-ci]

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

[vdaas-ci]

[APPROVED] This PR is approved by vankichi.