import { RuleTester as ESLintTesterV8 } from 'eslint-v8'
import { RuleTester as ESLintTesterV9 } from 'eslint'
import { rules } from '@next/eslint-plugin-next'
const NextESLintRule = rules['no-document-import-in-page']
const tests = {
valid: [
{
code: `import Document from "next/document"
export default class MyDocument extends Document {
render() {
return (
);
}
}
`,
filename: 'pages/_document.js',
},
{
code: `import Document from "next/document"
export default class MyDocument extends Document {
render() {
return (
);
}
}
`,
filename: 'pages/_document.page.tsx',
},
{
code: `import NDocument from "next/document"
export default class Document extends NDocument {
render() {
return (
);
}
}
`,
filename: 'pages/_document/index.js',
},
{
code: `import NDocument from "next/document"
export default class Document extends NDocument {
render() {
return (
);
}
}
`,
filename: 'pages/_document/index.tsx',
},
{
code: `import Document from "next/document"
export default class MyDocument extends Document {
render() {
return (
);
}
}
`,
filename: 'pagesapp/src/pages/_document.js',
},
],
invalid: [
{
code: `import Document from "next/document"
export const Test = () => Test
`,
filename: 'components/test.js',
errors: [
{
message:
'`` from `next/document` should not be imported outside of `pages/_document.js`. See: https://nextjs.org/docs/messages/no-document-import-in-page',
type: 'ImportDeclaration',
},
],
},
{
code: `import Document from "next/document"
export const Test = () => Test
`,
filename: 'pages/test.js',
errors: [
{
message:
'`` from `next/document` should not be imported outside of `pages/_document.js`. See: https://nextjs.org/docs/messages/no-document-import-in-page',
type: 'ImportDeclaration',
},
],
},
],
}
describe('no-document-import-in-page', () => {
new ESLintTesterV8({
parserOptions: {
ecmaVersion: 2018,
sourceType: 'module',
ecmaFeatures: {
modules: true,
jsx: true,
},
},
}).run('eslint-v8', NextESLintRule, tests)
new ESLintTesterV9({
languageOptions: {
ecmaVersion: 2018,
sourceType: 'module',
parserOptions: {
ecmaFeatures: {
modules: true,
jsx: true,
},
},
},
}).run('eslint-v9', NextESLintRule, tests)
})