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vitest.dev
test
testing-tools
vite
fix(vitest): correctly resolve mocked node:* imports in __mocks__ folder (#6204)
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-2
pnpm-lock.yaml
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pnpm-lock.yaml
···
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immutable:
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specifier: 5.0.0-beta.5
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version: 5.0.0-beta.5
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memfs:
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specifier: ^4.8.2
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version: 4.8.2
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strip-ansi:
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specifier: ^7.1.0
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version: 7.1.0
···
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peerDependencies:
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'@algolia/client-search': '>= 4.9.1 < 6'
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algoliasearch: '>= 4.9.1 < 6'
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peerDependenciesMeta:
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'@algolia/client-search':
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optional: true
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'@algolia/autocomplete-shared@1.9.3':
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resolution: {integrity: sha512-Wnm9E4Ye6Rl6sTTqjoymD+l8DjSTHsHboVRYrKgEt8Q7UHm9nYbqhN/i0fhUYA3OAEH7WA8x3jfpnmJm3rKvaQ==}
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peerDependencies:
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'@algolia/client-search': '>= 4.9.1 < 6'
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algoliasearch: '>= 4.9.1 < 6'
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peerDependenciesMeta:
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'@algolia/client-search':
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optional: true
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'@algolia/cache-browser-local-storage@4.20.0':
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resolution: {integrity: sha512-uujahcBt4DxduBTvYdwO3sBfHuJvJokiC3BP1+O70fglmE1ShkH8lpXqZBac1rrU3FnNYSUs4pL9lBdTKeRPOQ==}
···
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resolution: {integrity: sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ==}
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engines: {node: '>= 0.6'}
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memfs@4.8.2:
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resolution: {integrity: sha512-j4WKth315edViMBGkHW6NTF0QBjsTrcRDmYNcGsPq+ozMEyCCCIlX2d2mJ5wuh6iHvJ3FevUrr48v58YRqVdYg==}
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engines: {node: '>= 4.0.0'}
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merge-anything@5.1.7:
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resolution: {integrity: sha512-eRtbOb1N5iyH0tkQDAoQ4Ipsp/5qSR79Dzrz8hEPxRX10RWWR/iQXdoKmBSRCThY1Fh5EhISDtpSc93fpxUniQ==}
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engines: {node: '>=12.13'}
···
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'@algolia/autocomplete-preset-algolia@1.9.3(@algolia/client-search@4.20.0)(algoliasearch@4.20.0)':
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dependencies:
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'@algolia/autocomplete-shared': 1.9.3(@algolia/client-search@4.20.0)(algoliasearch@4.20.0)
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'@algolia/client-search': 4.20.0
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algoliasearch: 4.20.0
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optionalDependencies:
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'@algolia/client-search': 4.20.0
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'@algolia/autocomplete-shared@1.9.3(@algolia/client-search@4.20.0)(algoliasearch@4.20.0)':
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dependencies:
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'@algolia/client-search': 4.20.0
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algoliasearch: 4.20.0
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optionalDependencies:
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'@algolia/client-search': 4.20.0
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'@algolia/cache-browser-local-storage@4.20.0':
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dependencies:
···
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mdn-data@2.0.30: {}
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media-typer@0.3.0: {}
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memfs@4.8.2:
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dependencies:
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tslib: 2.6.2
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merge-anything@5.1.7:
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dependencies:
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docs/guide/mocking.md
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docs/guide/mocking.md
···
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:::
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```ts
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-
// hello-world.js
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// read-hello-world.js
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import { readFileSync } from 'node:fs'
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export function readHelloWorld(path) {
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return readFileSync('./hello-world.txt')
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return readFileSync(path)
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}
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```
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···
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// hello-world.test.js
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import { beforeEach, expect, it, vi } from 'vitest'
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import { fs, vol } from 'memfs'
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import { readHelloWorld } from './hello-world.js'
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import { readHelloWorld } from './read-hello-world.js'
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// tell vitest to use fs mock from __mocks__ folder
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// this can be done in a setup file if fs should always be mocked
···
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})
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it('should return correct text', () => {
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const path = './hello-world.txt'
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const path = '/hello-world.txt'
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fs.writeFileSync(path, 'hello world')
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const text = readHelloWorld(path)
···
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'./dir2/hw.txt': 'hello dir2',
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},
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// default cwd
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'/tmp'
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'/tmp',
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)
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expect(readHelloWorld('/tmp/dir1/hw.txt')).toBe('hello dir1')
+1
test/core/package.json
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test/core/package.json
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test/core/__mocks__/fs.cjs
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test/core/__mocks__/fs.cjs
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test/core/src/read-hello-world.ts
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test/core/src/read-hello-world.ts
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-1
test/core/test/file-path.test.ts
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test/core/test/file-path.test.ts
···
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import { describe, expect, it, vi } from 'vitest'
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import { isWindows, slash, toFilePath } from '../../../packages/vite-node/src/utils'
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vi.mock('fs')
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vi.mock('fs', () => {
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return {
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existsSync: vi.fn(),
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}
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})
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describe('current url', () => {
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it('__filename is equal to import.meta.url', () => {
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test/core/test/mock-fs.test.ts
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test/core/test/mock-fs.test.ts
···
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// hello-world.test.js
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import { beforeEach, expect, it, vi } from 'vitest'
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import { fs, vol } from 'memfs'
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import { readHelloWorld } from '../src/read-hello-world'
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// tell vitest to use fs mock from __mocks__ folder
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// this can be done in a setup file if fs should always be mocked
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vi.mock('node:fs')
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vi.mock('node:fs/promises')
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beforeEach(() => {
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// reset the state of in-memory fs
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vol.reset()
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})
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it('should return correct text', () => {
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const path = '/hello-world.txt'
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fs.writeFileSync(path, 'hello world')
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const text = readHelloWorld(path)
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expect(text).toBe('hello world')
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})
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it('can return a value multiple times', () => {
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// you can use vol.fromJSON to define several files
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vol.fromJSON(
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{
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'./dir1/hw.txt': 'hello dir1',
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'./dir2/hw.txt': 'hello dir2',
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},
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// default cwd
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'/tmp',
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)
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expect(readHelloWorld('/tmp/dir1/hw.txt')).toBe('hello dir1')
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expect(readHelloWorld('/tmp/dir2/hw.txt')).toBe('hello dir2')
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})
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-8
packages/vitest/src/runtime/mocker.ts
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packages/vitest/src/runtime/mocker.ts
···
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return {
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id,
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fsPath,
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external,
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external: external ? this.normalizePath(external) : external,
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}
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}
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···
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const files = readdirSync(mockFolder)
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const baseOriginal = basename(path)
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for (const file of files) {
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const baseFile = basename(file, extname(file))
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if (baseFile === baseOriginal) {
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return resolve(mockFolder, file)
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function findFile(files: string[], baseOriginal: string): string | null {
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for (const file of files) {
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const baseFile = basename(file, extname(file))
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if (baseFile === baseOriginal) {
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const path = resolve(mockFolder, file)
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// if the same name, return the file
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if (fs.statSync(path).isFile()) {
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return path
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}
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else {
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// find folder/index.{js,ts}
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const indexFile = findFile(readdirSync(path), 'index')
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if (indexFile) {
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return indexFile
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}
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}
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}
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}
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return null
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}
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return null
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return findFile(files, baseOriginal)
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}
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const dir = dirname(path)
···
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const mocks = this.mockMap.get(suitefile) || {}
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const resolves = this.resolveCache.get(suitefile) || {}
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-
mocks[id] = factory || this.resolveMockPath(path, external)
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+
mocks[id] = factory || this.resolveMockPath(id, external)
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resolves[id] = originalId
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this.mockMap.set(suitefile, mocks)
···
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let mock = this.getDependencyMock(normalizedId)
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if (mock === undefined) {
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mock = this.resolveMockPath(fsPath, external)
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+
mock = this.resolveMockPath(normalizedId, external)
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}
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if (mock === null) {