mirror of
https://github.com/hanzoai/next.js.git
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Jiwon ChoiandGitHub
e1b8c00d0f
ESLint plugin defaults to flat config, and we also dropped the built-in lint check at https://github.com/vercel/next.js/pull/83136, so we can sunset the deprecated ESLint v8 testing.
179 lines
4.0 KiB
TypeScript
179 lines
4.0 KiB
TypeScript
import { RuleTester } from 'eslint'
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import { rules } from '@next/eslint-plugin-next'
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const NextESLintRule = rules['google-font-display']
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const tests = {
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valid: [
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`import Head from "next/head";
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export default Test = () => {
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return (
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<Head>
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<link href={test} rel="test" />
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<link
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href={process.env.NEXT_PUBLIC_CANONICAL_URL}
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rel="canonical"
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/>
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<link
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href={new URL("../public/favicon.ico", import.meta.url).toString()}
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rel="icon"
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/>
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<link
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href="https://fonts.googleapis.com/css2?family=Krona+One&display=optional"
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rel="stylesheet"
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/>
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</Head>
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);
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};
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`,
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`import Document, { Html, Head } from "next/document";
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class MyDocument extends Document {
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render() {
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return (
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<Html>
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<Head>
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<link
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href="https://fonts.googleapis.com/css?family=Krona+One&display=swap"
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rel="stylesheet"
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/>
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</Head>
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</Html>
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);
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}
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}
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export default MyDocument;
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`,
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`import Document, { Html, Head } from "next/document";
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class MyDocument extends Document {
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render() {
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return (
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<Html>
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<Head>
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<link
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href="https://fonts.googleapis.com/css?family=Krona+One&display=swap"
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rel="stylesheet"
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crossOrigin=""
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/>
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</Head>
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</Html>
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);
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}
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}
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export default MyDocument;
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`,
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],
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invalid: [
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{
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code: `import Head from "next/head";
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export default Test = () => {
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return (
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<Head>
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<link
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href="https://fonts.googleapis.com/css2?family=Krona+One"
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rel="stylesheet"
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/>
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</Head>
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);
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};
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`,
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errors: [
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{
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message:
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'A font-display parameter is missing (adding `&display=optional` is recommended). See: https://nextjs.org/docs/messages/google-font-display',
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type: 'JSXOpeningElement',
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},
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],
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},
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{
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code: `import Head from "next/head";
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export default Test = () => {
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return (
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<Head>
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<link
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href="https://fonts.googleapis.com/css2?family=Krona+One&display=block"
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rel="stylesheet"
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/>
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</Head>
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);
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};
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`,
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errors: [
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{
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message:
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'Block is not recommended. See: https://nextjs.org/docs/messages/google-font-display',
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type: 'JSXOpeningElement',
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},
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],
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},
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{
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code: `import Head from "next/head";
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export default Test = () => {
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return (
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<Head>
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<link
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href="https://fonts.googleapis.com/css2?family=Krona+One&display=auto"
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rel="stylesheet"
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/>
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</Head>
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);
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};
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`,
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errors: [
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{
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message:
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'Auto is not recommended. See: https://nextjs.org/docs/messages/google-font-display',
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type: 'JSXOpeningElement',
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},
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],
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},
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{
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code: `import Head from "next/head";
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export default Test = () => {
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return (
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<Head>
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<link
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href="https://fonts.googleapis.com/css2?display=fallback&family=Krona+One"
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rel="stylesheet"
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/>
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</Head>
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);
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};
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`,
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errors: [
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{
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message:
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'Fallback is not recommended. See: https://nextjs.org/docs/messages/google-font-display',
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type: 'JSXOpeningElement',
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},
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],
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},
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],
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}
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describe('google-font-display', () => {
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new RuleTester({
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languageOptions: {
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ecmaVersion: 2020,
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sourceType: 'module',
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parserOptions: {
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ecmaFeatures: {
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modules: true,
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jsx: true,
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},
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},
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},
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}).run('eslint', NextESLintRule, tests)
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})
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