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refactor(core): use require.resolve instead of Module internals (#5796)

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This commit is contained in:
Markus Padourek 2019-05-25 21:54:28 +02:00 committed by Pooya Parsa
parent 7e50fe744f
commit 5f72ad5358
2 changed files with 16 additions and 17 deletions
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13
packages/core/src/resolver.js
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@ -1,4 +1,3 @@
import Module from 'module'
import { resolve, join } from 'path'
import fs from 'fs-extra'
import consola from 'consola'
@ -19,17 +18,21 @@ export default class Resolver {
// ESM Loader
this.esm = esm(module)
this._resolve = require.resolve
}
resolveModule(path) {
try {
return Module._resolveFilename(path, {
return this._resolve(path, {
paths: this.options.modulesDir
})
} catch (error) {
if (error.code === 'MODULE_NOT_FOUND') {
return undefined
} else {
if (error.code !== 'MODULE_NOT_FOUND') {
// TODO: remove after https://github.com/facebook/jest/pull/8487 released
if (process.env.NODE_ENV === 'test' && error.message.startsWith('Cannot resolve module')) {
return
}
throw error
}
}

20
packages/core/test/resolver.test.js
View File

@ -1,4 +1,3 @@
import Module from 'module'
import path from 'path'
import esm from 'esm'
import fs from 'fs-extra'
@ -7,7 +6,6 @@ import { startsWithRootAlias, startsWithSrcAlias } from '@nuxt/utils'
import Resolver from '../src/resolver'
jest.mock('module')
jest.mock('path')
jest.mock('esm', () => jest.fn(() => jest.fn()))
jest.mock('fs-extra')
@ -33,24 +31,24 @@ describe('core: resolver', () => {
expect(esm).toBeCalledTimes(1)
})
test('should call _resolveFilename in resolveModule', () => {
test('should call require.resolve in resolveModule', () => {
const resolver = new Resolver({
options: { modulesDir: '/var/nuxt/node_modules' }
})
Module._resolveFilename = jest.fn(() => '/var/nuxt/resolver/module')
const resolve = resolver._resolve = jest.fn(() => '/var/nuxt/resolver/module')
const modulePath = resolver.resolveModule('/var/nuxt/resolver')
expect(modulePath).toEqual('/var/nuxt/resolver/module')
expect(Module._resolveFilename).toBeCalledTimes(1)
expect(Module._resolveFilename).toBeCalledWith('/var/nuxt/resolver', { paths: '/var/nuxt/node_modules' })
expect(resolve).toBeCalledTimes(1)
expect(resolve).toBeCalledWith('/var/nuxt/resolver', { paths: '/var/nuxt/node_modules' })
})
test('should return undefined when module is not found', () => {
const resolver = new Resolver({
options: { modulesDir: '/var/nuxt/node_modules' }
})
Module._resolveFilename = jest.fn(() => {
const resolve = resolver._resolve = jest.fn(() => {
const err = new Error()
err.code = 'MODULE_NOT_FOUND'
throw err
@ -59,16 +57,14 @@ describe('core: resolver', () => {
const modulePath = resolver.resolveModule('/var/nuxt/resolver')
expect(modulePath).toBeUndefined()
expect(Module._resolveFilename).toBeCalledTimes(1)
expect(resolve).toBeCalledTimes(1)
})
test('should throw error when _resolveFilename failed', () => {
test('should throw error when require.resolve failed', () => {
const resolver = new Resolver({
options: { modulesDir: '/var/nuxt/node_modules' }
})
Module._resolveFilename = jest.fn(() => {
throw new Error('resolve failed')
})
resolver._resolve = jest.fn(() => { throw new Error('resolve failed') })
expect(() => resolver.resolveModule('/var/nuxt/resolver')).toThrow('resolve failed')
})