Re: t/unit-tests: convert unit-tests to use clar

> Hello,
> 
> This small patch series transitions the existing unit test files to the
> Clar testing framework. This change is part of our ongoing effort to
> standardize our testing approach and enhance maintainability.
> 
> changes in v3:
> - Some small fixes were made to the commit messages

> Range-diff against v2:
> 1:  00bb4d2880 ! 1:  f9e163a181 t/unit-tests: handle dashes in test suite filenames
>     @@ Metadata
>       ## Commit message ##
>          t/unit-tests: handle dashes in test suite filenames
>      
>     -    The script is designed to extract function signatures that match a
>     -    specific pattern derived from the unit test file's name.
>     -    `generate-clar-decls.sh` does not pick up dashes in filenames, which
>     -    prevents the scripts from being run.
>     +    "generate-clar-decls.sh" script is designed to extract function
>     +    signatures that match a specific pattern derived from the unit test
>     +    file's name. The script does not know to massage file names with dashes,
>     +    which will make it search for functions that look like, for example,
>     +    `test_mem-pool_*`. Having dashes in function names is not allowed
>     +    though, so these patterns won't ever match a legal function name.
>      
>          Adapt script to translate dashes (`-`) in test suite filenames to
>          underscores (`_`) to correctly extract the function signatures and run
> -:  ---------- > 2:  f46438f53e t/unit-tests: convert mem-pool test to use clar test framework
> -:  ---------- > 3:  f5cabebd3a t/unit-tests: adapt priority queue test to use clar test framework
> -:  ---------- > 4:  5323873612 t/unit-tests: convert reftable tree test to use clar test framework