add API test for device/deviceprofile/deviceservice

[LindaYu17]

run: make test

Signed-off-by: Linda Yu linda.yu@intel.com

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind bug
/kind documentation
/kind enhancement
/kind good-first-issue
/kind feature
/kind question
/kind design
/sig ai
/sig iot
/sig network
/sig storage

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

[LindaYu17]

ok github.com/openyurtio/device-controller/pkg/controllers 21.626s coverage: 20.7% of statements
ok github.com/openyurtio/device-controller/pkg/controllers/util 0.016s coverage: 44.8% of statements

[codecov-commenter]

Codecov Report

Merging #49 (ea5a3f6) into main (3306b9e) will increase coverage by 22.39%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##            main      #49       +/-   ##
==========================================
+ Coverage   0.00%   22.39%   +22.39%     
==========================================
  Files          7       10        +3     
  Lines        834      920       +86     
==========================================
+ Hits           0      206      +206     
+ Misses       834      676      -158     
- Partials       0       38       +38     

Impacted Files	Coverage Δ
pkg/controllers/util/fieldindexer.go	0.00% <0.00%> (ø)
pkg/controllers/util/string.go	100.00% <0.00%> (ø)
pkg/controllers/util/tools.go	42.59% <0.00%> (ø)
pkg/controllers/device_controller.go	27.77% <0.00%> (+27.77%)	⬆️
pkg/controllers/deviceservice_controller.go	43.38% <0.00%> (+43.38%)	⬆️
pkg/controllers/predicate.go	45.00% <0.00%> (+45.00%)	⬆️
pkg/controllers/deviceprofile_controller.go	56.04% <0.00%> (+56.04%)	⬆️

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[wawlian]

/LGTM

[qclc]

/approve

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gnunu, LindaYu17, qclc, wawlian

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