custom rule - how?

[Felicia5]

Hi,
I am trying to add a custom rule using the logic of heading-has-content rule. But instead of headings I am looking for div elements. Also, in the util hasAccessibleChild I am not only looking for any text but a text that is equal to "apply".

#My questions:

1. I don't know how to handle these errors. Can you suggest some solutions?
   I generated the rule files using the create-rule.md file. I added my changes to the rule and rule-test files. I run npm test and receive these errors:

   

Do you have a further guide on these below?

2. How do I test if the rule and the rule-test works as I want it to? 
  I have read the [eslint documentation](https://eslint.org/docs/developer-guide/unit-tests) but I couldn't find a solution. 

3. Without merging my rule to the master branch, how do I add my custom jsx-eslint /eslint-plugin-jsx-a11y plugin to test my code against the my new custom rule when I develop a new website?

here is my custom rule:
https://github.com/Felicia5/eslint-plugin-jsx-a11y/blob/first-rule-button/src/rules/first-rule-button.js

[ljharb]

Hmm - I haven't actually used that script; it was last touched 4 years ago. It's highly likely that it's out of date.

The error looks like it's coming from flow itself - what code are you running it on?

[Felicia5]

I got this error right after I :

1. run npm run create -- myrule --author="Felicia Kovacs" --description="Enforce use of button elements to display apply text" - this is the command defined in the : https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/blob/master/scripts/create-rule.md
2. added code to files: rule, rule-test and hasAccessibleChildApply.js util
3. run npm test within int-plugin-jsx-a11y folder I forked and cloned on my local desktop.

Any idea how I can get rid of the error message coming from flow?

[ljharb]

Can you make a branch on your fork, and post the link here? I'll clone it locally and try it out.

[Felicia5]

here it is: https://github.com/Felicia5/eslint-plugin-jsx-a11y/tree/felicia-rule

[Felicia5]

These are the steps I have done after forking:

used git clone https://github.com/Felicia5/eslint-plugin-jsx-a11y.git
cd eslint-plugin-jsx-a11y
git remote add upstream https://github.com/jsx-eslint/eslint-plugin-jsx-a11y.git
git checkout -b "felicia-rule"
git commit -m "cloned repo locally"
git push
git push --set-upstream origin felicia-rule
npm install
npm run create -- myrule --author="Felicia Kovacs" --description="Enforce use of button elements to display apply text"

npm test

git add .
git commit -m "generated rule files"
git push

I added my changes

npm test

git add .
git commit -m "added my changes to rule, rule-test and hasAccessibleChildMyrule util file."
git push

npm version: 6.14.8

[V2dha]

Can I look into this?

[ljharb]

Go for it!

[V2dha]

The flowconfig error i.e. if [ ! -e ./.flowconfig ]; then echo \"Could not find .flowconfig\"; else flow; test $? -eq 0 -o $? -eq 2; fi is mentioned in the Issue 855 and has been fixed in this latest commit. So upon replicating the new rule onto the latest commits, I am no longer getting the above errors.
But I am encountering the following errors which are related to import declarations in module.

 10:1   error  Cannot use import declarations in modules that export 
using CommonJS (module.exports = 'foo' or exports.bar = 'hi')  import/no-import-module-exports
  11:1   error  Cannot use import declarations in modules that export 
using CommonJS (module.exports = 'foo' or exports.bar = 'hi')  import/no-import-module-exports
  12:1   error  Cannot use import declarations in modules that export 
using CommonJS (module.exports = 'foo' or exports.bar = 'hi')  import/no-import-module-exports
  12:32  error  Unable to resolve path to module '../util/hasAccessibleChildMyrule'                                                  import/no-unresolved
  12:32  error  Missing file extension for "../util/hasAccessibleChildMyrule"                                                        import/extensions
  13:1   error  Cannot use import declarations in modules that export using CommonJS (module.exports = 'foo' or exports.bar = 'hi')  import/no-import-module-exports

✖ 6 problems (6 errors, 0 warnings)

[V2dha]

Cannot use import declarations in modules that export using CommonJS (module.exports = 'foo' or exports.bar = 'hi') import/no-import-module-exports errors were due to the module.exports instead of export default that was mentioned in the boilerplate which is not updated yet.

[ljharb]

I'm going to close this; please file a new issue if anyone's still having trouble.