Kotlin String Implementaiton

[apurvabanka]

What GitHub issue does this PR apply to?

Resolves #741

What changed and why?

Implemented changes for Kotlin String.

(If editing website code) Please add screenshots

Checklist

• [x] I claimed any associated issue(s) and they are not someone else's
• [x] I have looked at documentation to ensure I made any revisions correctly
• [x] I tested my changes locally to ensure they work
• [x] For language files, I have validated the edited files are valid JSON and data shows up correctly
• [x] For website code edits, I have added or edited any appropriate unit tests for my changes

Any additional comments or things to be aware of while reviewing?

[geekygirlsarah]

From the validating checks:

Error:  `kotlin/1.5/strings.json`, ID: `count_occurrences_of_substring` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `convert_to_title_case` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `parameter_format_in_order` has not_implemented (underscore) when it should use not-implemented (hyphen)
3 errors found.

I think I also saw a "not-implemented": "true" (with quotes around true) that will need to get fixed. But past that it looks good! Fix those things and I'm happy to merge it in!

(The docker check is an issue related to a library it uses, and isn't a fault of this PR so I'm ignoring it)

[apurvabanka]

From the validating checks:

Error:  `kotlin/1.5/strings.json`, ID: `count_occurrences_of_substring` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `convert_to_title_case` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `parameter_format_in_order` has not_implemented (underscore) when it should use not-implemented (hyphen)
3 errors found.

I think I also saw a "not-implemented": "true" (with quotes around true) that will need to get fixed. But past that it looks good! Fix those things and I'm happy to merge it in!

(The docker check is an issue related to a library it uses, and isn't a fault of this PR so I'm ignoring it)

My bad !!!! Fixed it.

[geekygirlsarah]

From the validating checks:

Error:  `kotlin/1.5/strings.json`, ID: `count_occurrences_of_substring` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `convert_to_title_case` has not_implemented (underscore) when it should use not-implemented (hyphen)
Error:  `kotlin/1.5/strings.json`, ID: `parameter_format_in_order` has not_implemented (underscore) when it should use not-implemented (hyphen)
3 errors found.

Those still need to be fixed, they failed the validating check again.

[apurvabanka]

@geekygirlsarah Are there any instructions on how to run the tests?

[geekygirlsarah]

I swore we had a docs page on it, but I'm not seeing it. Either I'm tired or it doesn't exist! 😆

you can run: python manage.py validatemetainfofile to validate meta_info.json and adding a new language/concept, or python manage.py validatelanginfofiles to validate individual files (like what you're doing)

Ideally run both to get a full check on it.

[geekygirlsarah]

https://github.com/codethesaurus/docs/issues/42

Clearly I thought this through a year ago! 😆

[apurvabanka]

@geekygirlsarah Added some testing docs as well for the contribution page. All test cases are passing now.

[geekygirlsarah]

Ignoring the Docker build issue, this is good to go! I'll merge it in.

Happy Hacktoberfest! This counts towards that if you're participating!