docs(svelte): Adds setup information for testing-library-svelte

[timvancleef]

Adds a missing jest transform config setting when using es6 modules.

[m98]

I don't have any comment on if this change is necessary or not. But I only found two minor issues which I liked to mention.

[m98]

I have not any other feedback.

@mihar-22 and @benmonro do you have any feedback?

[mihar-22]

Mmm I'm not really sure because there is a section right now for people who need Babel: https://testing-library.com/docs/svelte-testing-library/setup#babel--preprocessor. I guess the question is whether we should add it by default... and I think we should since I can't imagine anyone testing Svelte with Jest is not using ES modules. A few recommendations:

• Add an install instruction to step 5: npm install babel-jest -D
• Add a default .babelrc setup to step 5:

{ "presets": [["@babel/preset-env", { "targets": { "node": "current" } }]] }

• Remove Babel from the bottom of the setup docs and just leave all the information about preprocessors.

[timvancleef]

Hi @mihar-22, @m98 do you have any further opinions on this PR?

[mihar-22]

Sorry for the delayed response @timvancleef, I have nothing to add looks good to me.