Implement agent handler indexInfo test case

[kevindiu]

Signed-off-by: kevindiu kevindiujp@gmail.com

Description:

Same as title/

Related Issue:

How Has This Been Tested?:

Environment:

• Go Version: 1.18.3
• Docker Version: 20.10.8
• Kubernetes Version: 1.22.0
• NGT Version: 1.14.6

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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• ⏪ /rebase - rebase master
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[codecov]

Codecov Report

Merging #1708 (9f5c647) into master (3227058) will increase coverage by 0.40%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1708      +/-   ##
==========================================
+ Coverage   31.25%   31.65%   +0.40%     
==========================================
  Files         346      372      +26     
  Lines       27657    32313    +4656     
==========================================
+ Hits         8644    10230    +1586     
- Misses      18749    21691    +2942     
- Partials      264      392     +128     

Impacted Files	Coverage Δ
internal/test/data/request/insert.go	92.10% <ø> (ø)
internal/test/data/request/remove.go	100.00% <100.00%> (ø)
internal/worker/queue.go	96.20% <0.00%> (-3.80%)	⬇️
...nt/core/ngt/service/vqueue/uninserted_index_map.go	70.49% <0.00%> (-2.74%)	⬇️
internal/worker/worker.go	83.59% <0.00%> (ø)
pkg/agent/core/ngt/handler/grpc/index.go	17.21% <0.00%> (ø)
pkg/agent/core/ngt/handler/grpc/upsert.go	31.06% <0.00%> (ø)
pkg/agent/core/ngt/handler/grpc/option.go	92.68% <0.00%> (ø)
pkg/agent/core/ngt/usecase/agentd.go	0.00% <0.00%> (ø)
pkg/agent/core/ngt/router/router.go	100.00% <0.00%> (ø)
... and 22 more

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[vankichi]

Is there any case for checking dimension size?

[kevindiu]

same as
#1707 (comment)

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Pages

Latest commit:	9f5c647
Status:	✅  Deploy successful!
Preview URL:	https://d604bfc3.vald.pages.dev
Branch Preview URL:	https://test-pkg-add-pkg-agent-handl.vald.pages.dev

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