|
|
|
|
|
import { transform } from '@babel/core' |
|
|
|
|
|
const trim = (s) => s.join('\n').trim().replace(/^\s+/gm, '') |
|
|
|
|
|
|
|
|
const NODE_ENV = process.env.NODE_ENV |
|
|
;(process.env as any).NODE_ENV = 'production' |
|
|
const plugin = require('next/dist/build/babel/plugins/next-ssg-transform') |
|
|
;(process.env as any).NODE_ENV = NODE_ENV |
|
|
|
|
|
const babel = (code, esm = true, pluginOptions = {}) => |
|
|
transform(code, { |
|
|
filename: 'noop.js', |
|
|
presets: [['@babel/preset-react', { development: false, pragma: '__jsx' }]], |
|
|
plugins: [[plugin, pluginOptions]], |
|
|
babelrc: false, |
|
|
configFile: false, |
|
|
sourceType: 'module', |
|
|
compact: true, |
|
|
caller: { |
|
|
name: 'tests', |
|
|
supportsStaticESM: esm, |
|
|
}, |
|
|
}).code |
|
|
|
|
|
describe('babel plugin (next-ssg-transform)', () => { |
|
|
describe('getStaticProps support', () => { |
|
|
it('should remove separate named export specifiers', () => { |
|
|
const output = babel(trim` |
|
|
export { getStaticPaths } from '.' |
|
|
export { a as getStaticProps } from '.' |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove combined named export specifiers', () => { |
|
|
const output = babel(trim` |
|
|
export { getStaticPaths, a as getStaticProps } from '.' |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should retain extra named export specifiers', () => { |
|
|
const output = babel(trim` |
|
|
export { getStaticPaths, a as getStaticProps, foo, bar as baz } from '.' |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export{foo,bar as baz}from'.';export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove named export function declarations', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticPaths() { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove named export function declarations (async)', () => { |
|
|
const output = babel(trim` |
|
|
export async function getStaticPaths() { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export async function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should not remove extra named export function declarations', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export function Noop() {} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export function Noop(){}export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove named export variable declarations', () => { |
|
|
const output = babel(trim` |
|
|
export const getStaticPaths = () => { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export const getStaticProps = function() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove named export variable declarations (async)', () => { |
|
|
const output = babel(trim` |
|
|
export const getStaticPaths = async () => { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export const getStaticProps = async function() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should not remove extra named export variable declarations', () => { |
|
|
const output = babel(trim` |
|
|
export const getStaticPaths = () => { |
|
|
return [] |
|
|
}, foo = 2 |
|
|
|
|
|
export const getStaticProps = function() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export const foo=2;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove re-exported variable declarations', () => { |
|
|
const output = babel(trim` |
|
|
const getStaticPaths = () => { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export { getStaticPaths } |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove re-exported variable declarations (safe)', () => { |
|
|
const output = babel(trim` |
|
|
const getStaticPaths = () => { |
|
|
return [] |
|
|
}, a = 2 |
|
|
|
|
|
export { getStaticPaths } |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"const a=2;export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should remove re-exported function declarations', () => { |
|
|
const output = babel(trim` |
|
|
function getStaticPaths() { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export { getStaticPaths } |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should not crash for class declarations', () => { |
|
|
const output = babel(trim` |
|
|
function getStaticPaths() { |
|
|
return [] |
|
|
} |
|
|
|
|
|
export { getStaticPaths } |
|
|
|
|
|
export class MyClass {} |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export class MyClass{}export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it(`should remove re-exported function declarations' dependents (variables, functions, imports)`, () => { |
|
|
const output = babel(trim` |
|
|
import keep_me from 'hello' |
|
|
import {keep_me2} from 'hello2' |
|
|
import * as keep_me3 from 'hello3' |
|
|
|
|
|
import drop_me from 'bla' |
|
|
import { drop_me2 } from 'foo' |
|
|
import { drop_me3, but_not_me } from 'bar' |
|
|
import * as remove_mua from 'hehe' |
|
|
|
|
|
var leave_me_alone = 1; |
|
|
function dont_bug_me_either() {} |
|
|
|
|
|
const inceptionVar = 'hahaa'; |
|
|
var var1 = 1; |
|
|
let var2 = 2; |
|
|
const var3 = inceptionVar + remove_mua; |
|
|
|
|
|
function inception1() {var2;drop_me2;} |
|
|
|
|
|
function abc() {} |
|
|
const b = function() {var3;drop_me3;}; |
|
|
const b2 = function apples() {}; |
|
|
const bla = () => {inception1}; |
|
|
|
|
|
function getStaticProps() { |
|
|
abc(); |
|
|
drop_me; |
|
|
b; |
|
|
b2; |
|
|
bla(); |
|
|
return { props: {var1} } |
|
|
} |
|
|
|
|
|
export { getStaticProps } |
|
|
|
|
|
export default function Test() { |
|
|
return <div /> |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"import keep_me from'hello';import{keep_me2}from'hello2';import*as keep_me3 from'hello3';import{but_not_me}from'bar';var leave_me_alone=1;function dont_bug_me_either(){}export var __N_SSG=true;export default function Test(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should not mix up bindings', () => { |
|
|
const output = babel(trim` |
|
|
function Function1() { |
|
|
return { |
|
|
a: function bug(a) { |
|
|
return 2; |
|
|
} |
|
|
}; |
|
|
} |
|
|
|
|
|
function Function2() { |
|
|
var bug = 1; |
|
|
return { bug }; |
|
|
} |
|
|
|
|
|
export { getStaticProps } from 'a' |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"function Function1(){return{a:function bug(a){return 2;}};}function Function2(){var bug=1;return{bug};}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support class exports', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
export default class Test extends React.Component { |
|
|
render() { |
|
|
return <div /> |
|
|
} |
|
|
} |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default class Test extends React.Component{render(){return __jsx("div",null);}}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support class exports 2', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
class Test extends React.Component { |
|
|
render() { |
|
|
return <div /> |
|
|
} |
|
|
} |
|
|
|
|
|
export default Test; |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"class Test extends React.Component{render(){return __jsx("div",null);}}export var __N_SSG=true;export default Test;"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support export { _ as default }', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
function El() { |
|
|
return <div /> |
|
|
} |
|
|
|
|
|
export { El as default } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"function El(){return __jsx("div",null);}export var __N_SSG=true;export{El as default};"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support export { _ as default } with other specifiers', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
function El() { |
|
|
return <div /> |
|
|
} |
|
|
|
|
|
const a = 5 |
|
|
|
|
|
export { El as default, a } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"function El(){return __jsx("div",null);}const a=5;export var __N_SSG=true;export{El as default,a};"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support export { _ as default } with a class', () => { |
|
|
const output = babel(trim` |
|
|
export function getStaticProps() { |
|
|
return { props: {} } |
|
|
} |
|
|
|
|
|
class El extends React.Component { |
|
|
render() { |
|
|
return <div /> |
|
|
} |
|
|
} |
|
|
|
|
|
const a = 5 |
|
|
|
|
|
export { El as default, a } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"class El extends React.Component{render(){return __jsx("div",null);}}const a=5;export var __N_SSG=true;export{El as default,a};"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support full re-export', () => { |
|
|
const output = babel(trim` |
|
|
export { getStaticProps, default } from 'a' |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export{default}from'a';"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('should support babel-style memoized function', () => { |
|
|
const output = babel(trim` |
|
|
function fn() { |
|
|
fn = function () {}; |
|
|
return fn.apply(this, arguments); |
|
|
} |
|
|
export function getStaticProps() { |
|
|
fn; |
|
|
} |
|
|
export default function Home() { return <div />; } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"export var __N_SSG=true;export default function Home(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('destructuring assignment (object)', () => { |
|
|
const output = babel(trim` |
|
|
import fs from 'fs'; |
|
|
import other from 'other'; |
|
|
|
|
|
const {readFile, readdir, access: foo} = fs.promises; |
|
|
const {a,b, cat: bar,...rem} = other; |
|
|
|
|
|
export async function getStaticProps() { |
|
|
readFile; |
|
|
readdir; |
|
|
foo; |
|
|
b; |
|
|
cat; |
|
|
rem; |
|
|
} |
|
|
export default function Home() { return <div />; } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"import other from'other';const{a,cat:bar}=other;export var __N_SSG=true;export default function Home(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('destructuring assignment (array)', () => { |
|
|
const output = babel(trim` |
|
|
import fs from 'fs'; |
|
|
import other from 'other'; |
|
|
|
|
|
const [a, b, ...rest]= fs.promises; |
|
|
const [foo, bar] = other; |
|
|
|
|
|
export async function getStaticProps() { |
|
|
a; |
|
|
b; |
|
|
rest; |
|
|
bar; |
|
|
} |
|
|
export default function Home() { return <div />; } |
|
|
`) |
|
|
|
|
|
expect(output).toMatchInlineSnapshot( |
|
|
`"import other from'other';const[foo]=other;export var __N_SSG=true;export default function Home(){return __jsx("div",null);}"` |
|
|
) |
|
|
}) |
|
|
|
|
|
it('errors for incorrect mix of functions', () => { |
|
|
expect(() => |
|
|
babel(trim` |
|
|
export function getStaticProps() {} |
|
|
export function getServerSideProps() {} |
|
|
`) |
|
|
).toThrow( |
|
|
`You can not use getStaticProps or getStaticPaths with getServerSideProps. To use SSG, please remove getServerSideProps` |
|
|
) |
|
|
|
|
|
expect(() => |
|
|
babel(trim` |
|
|
export function getServerSideProps() {} |
|
|
export function getStaticProps() {} |
|
|
`) |
|
|
).toThrow( |
|
|
`You can not use getStaticProps or getStaticPaths with getServerSideProps. To use SSG, please remove getServerSideProps` |
|
|
) |
|
|
|
|
|
expect(() => |
|
|
babel(trim` |
|
|
export function getStaticPaths() {} |
|
|
export function getServerSideProps() {} |
|
|
`) |
|
|
).toThrow( |
|
|
`You can not use getStaticProps or getStaticPaths with getServerSideProps. To use SSG, please remove getServerSideProps` |
|
|
) |
|
|
|
|
|
expect(() => |
|
|
babel(trim` |
|
|
export function getServerSideProps() {} |
|
|
export function getStaticPaths() {} |
|
|
`) |
|
|
).toThrow( |
|
|
`You can not use getStaticProps or getStaticPaths with getServerSideProps. To use SSG, please remove getServerSideProps` |
|
|
) |
|
|
}) |
|
|
}) |
|
|
}) |
|
|
|
