Add internal/net/http/client test

[kevindiu]

Description:

This PR implements http client test.

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]

[CHATOPS:HELP] ChatOps commands.

• 🙆‍♀️ /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 #858 (c8d5509) into master (aa681cf) will increase coverage by 0.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #858      +/-   ##
==========================================
+ Coverage   18.50%   18.65%   +0.15%     
==========================================
  Files         421      422       +1     
  Lines       19518    19572      +54     
==========================================
+ Hits         3611     3651      +40     
- Misses      15699    15712      +13     
- Partials      208      209       +1     

Impacted Files	Coverage Δ
internal/net/http/client/client.go	89.47% <ø> (+89.47%)	⬆️
internal/net/http/json/json.go	48.75% <0.00%> (-31.25%)	⬇️
internal/worker/worker.go	83.33% <0.00%> (-1.05%)	⬇️
internal/net/net.go	85.18% <0.00%> (ø)
internal/worker/queue.go	100.00% <0.00%> (+5.00%)	⬆️

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[hlts2]

LGTM

[kevindiu]

/rebase

[vdaas-ci]

[REBASE] Rebase triggered by kevindiu for branch: test/internal/net-http-client

[kevindiu]

/rebase

[vdaas-ci]

[REBASE] Rebase triggered by kevindiu for branch: test/internal/net-http-client

[vankichi]

LGTM

[vankichi]

/rebase
/format
/approve

[vdaas-ci]

[REBASE] Rebase triggered by vankichi for branch: test/internal/net-http-client

[vdaas-ci]

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

[vdaas-ci]

[APPROVED] This PR is approved by vankichi.