Mockdevice unit test agv

[Twpeak]

What this PR does / why we need it:

Will this PR make the community happier?

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

How is this PR tested

• [x] unit test
• [ ] e2e test
• [ ] other (please specify)

Special notes for your reviewer:

Release note:

[codecov[bot]]

Codecov Report

Base: 47.63% // Head: 47.93% // Increases project coverage by +0.30% :tada:

Coverage data is based on head (4f93e4d) compared to base (ce387b1). Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #345      +/-   ##
==========================================
+ Coverage   47.63%   47.93%   +0.30%     
==========================================
  Files          14       15       +1     
  Lines        1436     1456      +20     
==========================================
+ Hits          684      698      +14     
- Misses        682      688       +6     
  Partials       70       70              

Impacted Files	Coverage Δ
...eshifu/mockdevice/mockdevice-agv/mockdevice-agv.go	70.00% <0.00%> (ø)

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