[#213] Add further tests

[elfenpiff]

Notes for Reviewer

Pre-Review Checklist for the PR Author

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

Checklist for the PR Reviewer

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

Post-review Checklist for the PR Author

1. All open points are addressed and tracked via issues

References

Relates to #213

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.60%. Comparing base (82b1baf) to head (1669eeb).
Report is 19 commits behind head on main.

❗ Current head 1669eeb differs from pull request most recent head ed9363f

Please upload reports for the commit ed9363f to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #214      +/-   ##
==========================================
+ Coverage   79.23%   79.60%   +0.37%     
==========================================
  Files         183      183              
  Lines       20415    20420       +5     
==========================================
+ Hits        16175    16255      +80     
+ Misses       4240     4165      -75     

Files	Coverage Δ
iceoryx2-bb/posix/src/creation_mode.rs	100.00% <100.00%> (+60.00%)	⬆️

... and 61 files with indirect coverage changes

[elBoberido]

You could add this badge to the main README

[![Codecov](https://codecov.io/gh/eclipse-iceoryx2/iceoryx/branch/main/graph/badge.svg?branch=main)](https://codecov.io/gh/eclipse-iceoryx/iceoryx2?branch=main)

[elBoberido]

food for thought: You could add a blocking test with a watchdog killing the test after the timeout and add the #[should_panic] attribute to the tests

[elfenpiff]

In this case, the read-write lock detects the deadlock and reports it, so there is no deadlock with the watchdog. But this could be added to the read-write lock test suite ...