chore: add docker-compose.yml file to simplify running a local API for tests

[Rolv-Apneseth]

Finishing touches for #117.

This one adds a docker-compose.yml to easily setup a locally hosted version of LanguageTool for running the test suite against. The environment variables are important as the max length is used assumed in the tests, and the Java memory increase was required for me to avoid the service crashing when running the full test suite.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.55%. Comparing base (1d460ea) to head (46d75a5).
Report is 1 commits behind head on v3.

Additional details and impacted files

@@           Coverage Diff           @@
##               v3     #153   +/-   ##
=======================================
  Coverage   31.55%   31.55%           
=======================================
  Files          19       19           
  Lines         824      824           
=======================================
  Hits          260      260           
  Misses        564      564           

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[jeertmans]

Hi @Rolv-Apneseth, thanks for your PR! Could you add more details about how to use this configuration for testing? Probably here, for me review to be easier, but also somewhere in the README so people know they can actually use it :-)

[Rolv-Apneseth]

Sure, it's just docker compose up to start it, and I guess cargo test --all-features to run the tests. The latest version of language tool is important for the snapshot tests, so sometimes I just run docker compose up --pull always to make sure it always checks for an update. I'll actually just add that to the compose file though.

Do you want like a whole contributing section? Might do a CONTRIBUTING.md in a separate PR then, or do you just want a short section in the readme

[jeertmans]

Ok got it, it is quite simple!
Good idea for the contributing file

[jeertmans]

Hi @Rolv-Apneseth, I'll merge this and add the CONTRIBUTING.md file myself on v3 directly. Thanks!

[Rolv-Apneseth]

Hi @Rolv-Apneseth, I'll merge this and add the CONTRIBUTING.md file myself on v3 directly. Thanks!

Alright, no problem