[#213] increase test container coverage

[elfenpiff]

Notes for Reviewer

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

Relates to #213

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 87.50000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 80.03%. Comparing base (c1accf9) to head (e12486f). Report is 2 commits behind head on main.

Additional details and impacted files

[](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?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 #218 +/- ## ========================================== + Coverage 79.59% 80.03% +0.43% ========================================== Files 183 183 Lines 20420 20423 +3 ========================================== + Hits 16254 16346 +92 + Misses 4166 4077 -89 ``` | [Files](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?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-bb/container/src/byte\_string.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?src=pr&el=tree&filepath=iceoryx2-bb%2Fcontainer%2Fsrc%2Fbyte_string.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvY29udGFpbmVyL3NyYy9ieXRlX3N0cmluZy5ycw==) | `99.09% <100.00%> (+9.30%)` | :arrow_up: | | [iceoryx2-bb/container/src/semantic\_string.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?src=pr&el=tree&filepath=iceoryx2-bb%2Fcontainer%2Fsrc%2Fsemantic_string.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvY29udGFpbmVyL3NyYy9zZW1hbnRpY19zdHJpbmcucnM=) | `87.64% <100.00%> (+11.84%)` | :arrow_up: | | [iceoryx2-bb/posix/src/directory.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?src=pr&el=tree&filepath=iceoryx2-bb%2Fposix%2Fsrc%2Fdirectory.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvcG9zaXgvc3JjL2RpcmVjdG9yeS5ycw==) | `63.82% <100.00%> (ø)` | | | [iceoryx2-bb/posix/src/group.rs](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218?src=pr&el=tree&filepath=iceoryx2-bb%2Fposix%2Fsrc%2Fgroup.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx#diff-aWNlb3J5eDItYmIvcG9zaXgvc3JjL2dyb3VwLnJz) | `71.92% <0.00%> (ø)` | | ... and [12 files with indirect coverage changes](https://app.codecov.io/gh/eclipse-iceoryx/iceoryx2/pull/218/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=eclipse-iceoryx)