feat(obstacle_stop_planner): add test

[hrjp]

Description

Added a part of the test code in obstacle_stop_planner package.
Only straight trajectory is used for the test since it will be hard to verify the function with the non-straight trajectory because of the distortion.

Related links

#597

Tests performed

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[takayuki5168]

Please make sure to pass the pre-commit

[codecov]

Codecov Report

Merging #599 (237ba14) into main (ce8f2c3) will decrease coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 237ba14 differs from pull request most recent head b06cc81. Consider uploading reports for the commit b06cc81 to get more accurate results

@@            Coverage Diff             @@
##             main     #599      +/-   ##
==========================================
- Coverage   10.75%   10.73%   -0.03%     
==========================================
  Files        1111     1111              
  Lines       78544    78726     +182     
  Branches    18555    18555              
==========================================
  Hits         8451     8451              
- Misses      61236    61418     +182     
  Partials     8857     8857              

Flag	Coverage Δ		*Carryforward flag
differential	0.00% <ø> (?)
total	10.74% <ø> (ø)		Carriedforward from 9898734

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
planning/obstacle_stop_planner/src/node.cpp	0.00% <0.00%> (ø)

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[stale]

This pull request has been automatically marked as stale because it has not had recent activity.

[mitsudome-r]

@hrjp This pr seems to be left as a draft for two months. Could you consider closing it until you are truly ready or could you finish the pr so the reviewers can review the PR?

[yukkysaito]

Since there is no reply, this PR is closed. Please reopen if necessary