[#213] test: add test cases

[xieyuschen]

Notes for Reviewer

I have added some test cases during I'm learning the codes. It improves out test.

Pre-Review Checklist for the PR Author

1. [X] Add sensible notes for the reviewer
2. [X] PR title is short, expressive and meaningful
3. [X] Relevant issues are linked in the References section
4. [X] Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. [X] Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. [X] Commits messages are according to this guideline
   • [X] Commit messages have the issue ID ([#123] Add posix ipc example)
   • [X] Commit author matches Eclipse Contributor Agreement (and ECA is signed)
7. [X] Tests follow the best practice for testing
8. [X] Changelog updated in the unreleased section including API breaking changes
9. [x] Assign PR to reviewer
10. [x] All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• [x] Commits are properly organized and messages are according to the guideline
• [x] Unit tests have been written for new behavior
• [x] Public API is documented
• [x] PR title describes the changes

Post-review Checklist for the PR Author

1. [x] All open points are addressed and tracked via issues

References

Updates #213

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 79.02%. Comparing base (a7f0df7) to head (c472781). Report is 3 commits behind head on main.

Additional details and impacted files

[](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/439?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) ```diff @@ Coverage Diff @@ ## main #439 +/- ## ========================================== + Coverage 78.93% 79.02% +0.08% ========================================== Files 196 196 Lines 23283 23366 +83 ========================================== + Hits 18379 18465 +86 + Misses 4904 4901 -3 ``` | [Files with missing lines](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/439?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx) | Coverage Δ | | |---|---|---| | [iceoryx2/src/service/builder/publish\_subscribe.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/439?src=pr&el=tree&filepath=iceoryx2%2Fsrc%2Fservice%2Fbuilder%2Fpublish_subscribe.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDIvc3JjL3NlcnZpY2UvYnVpbGRlci9wdWJsaXNoX3N1YnNjcmliZS5ycw==) | `90.97% <ø> (-0.57%)` | :arrow_down: | | [.../src/service/static\_config/message\_type\_details.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/439?src=pr&el=tree&filepath=iceoryx2%2Fsrc%2Fservice%2Fstatic_config%2Fmessage_type_details.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDIvc3JjL3NlcnZpY2Uvc3RhdGljX2NvbmZpZy9tZXNzYWdlX3R5cGVfZGV0YWlscy5ycw==) | `100.00% <100.00%> (ø)` | | ... and [3 files with indirect coverage changes](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/439/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx)

[xieyuschen]

oops, I have found that alignment in 32bits is 4, not 8. let me change it:)

[xieyuschen]

@xieyuschen It is always a pleasure to start the week with an Earl Grey Hot (with milk) and a review of your PR.

Thank you very much for your continuous effort and helping us out!

ack, will try to resolve it later today and thanks for your clarify.

[xieyuschen]

Hi @elfenpiff , I have updated the PR with multiple small commits for you to check them based on your comments. I resolved the straitfoward comments and left some comments for you to see whether you have concerns about it.

Thanks for reviewing.

[xieyuschen]

Hi @elfenpiff , I have squashed the commits together for your final review. Could you review it and then we can merge it?

I plan to create another new PRs for the testing later. I found it helps me to understand the project while improving our codebase as well.

[elfenpiff]

@xieyuschen fix the little CI failure with size_of and we can get it merged.

[xieyuschen]

@xieyuschen fix the little CI failure with size_of and we can get it merged.

sure, i haven't encountered it in my local so i have missed it. but nvm, now it should be fine:)