I am facing some obstacles while trying to compile my Nextjs project for production. Here is the list of errors that I encountered:
./components/Layout/Header/Header.test.tsx
6:1 Error: 'describe' is not defined. no-undef
7:20 Error: 'jest' is not defined. no-undef
9:3 Error: 'it' is not defined. no-undef
11:5 Error: 'expect' is not defined. no-undef
14:3 Error: 'it' is not defined. no-undef
19:5 Error: 'expect' is not defined. no-undef
After making some adjustments in the eslint configuration file, it now looks like this:
{
...
env: {
browser: true,
es2021: true,
node: true,
jest: true, // Added for Jest testing
},
...
}
Fixing ESLint issues with newer versions is made easy with <a href="https://www.npmjs.com/package/eslint-plugin-mocha" rel="nofollow noreferrer">eslint-plugin-mocha</a>.Simply run: npm install --save-dev eslint-plugin-mocha
.eslintrc.json
Include the plugin and selected rules in your eslint configuration:
{
"plugins": [
"mocha"
]
}
eslint.config.js (requires eslint >= 8.23.0)
For the new eslint configuration format (flat config), use:
import mochaPlugin from 'eslint-plugin-mocha';
export default [
mochaPlugin.configs.flat.recommended // or `mochaPlugin.configs.flat.all` to enable all
// ... Your configurations here
];
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