feat(rule): add data-testid rule

[tknickman]

Here is the PR for the data-testid rule. Let me know what you think! Happy to make any adjustments necessary.

Fixes #55

[emmenko]

Thanks for your PR. I left some comments/questions to clarify a couple of things first.

[tknickman]

Thanks for the review! I made the requested changes here: c7aa60f

Let me know what ya'll think, happy to continue iterating on it 😄

[Belco90]

Sorry for reviewing this so late! Thanks for this PR, this looks really nice. Just one thing: what if I use a custom test id attr? For example, in one of the projects I work this is customized to data-test-id. Would be possible to update the rule to have the option to customize the attr? Thanks!!

[tknickman]

@Belco90 no problem!. That's a great call, I totally forgot that was configurable now in RTL. I'll add that as a configuration option.

[Belco90]

Awesome! This looks good to go 🚀

[tknickman]

Forgot to update the docs, that commit is coming in 2 mins!

problem with tests

[Belco90]

Also, the test coverage should be increased: https://travis-ci.org/Belco90/eslint-plugin-testing-library/jobs/636430039

I don't know why this wasn't blocking the PR, need to check it in a different ticket.

[tknickman]

Coverage and docs updated, let me know if there's anything else I can help with!

[Belco90]

Brilliant, merging now for real.

[Belco90]

🎉 This PR is included in version 1.4.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[Belco90]

@all-contributors please add @tknickman for code, doc and test

[allcontributors]

@Belco90

I've put up a pull request to add @tknickman! 🎉

[tknickman]

Thanks!