Tests for sentences/utils.rs

[hargoniX]

As per #11 we wanna ensure max test coverage, as of now sentences/utils.rs is not at all tested but shared across all sentence parsers and thus a source for very common bugs.

Should be quite easy to do and might be an easy way for an individual to look into tests and make a small open source commit unless someone really wants this in the crate quickly.

[elpiel]

@gflow33 is picking up this issue to work on it.
If you have any questions or caveats you found, you can open a Draft PR or write here.

[elpiel]

@gflow33 have you had any progress on this?

[gflow33]

Yes I am still on this.