fix: mocking works with base url

packages/vitest/src/runtime/execute.ts

@@ -1,5 +1,5 @@
 import { ViteNodeRunner } from 'vite-node/client'
-import type { ModuleCache, ViteNodeRunnerOptions } from 'vite-node'
+import type { ViteNodeRunnerOptions } from 'vite-node'
 import { normalizePath } from 'vite'
 import type { MockMap } from '../types/mocker'
 import { getWorkerState } from '../utils'
@@ -23,23 +23,15 @@ export async function executeInViteNode(options: ExecuteOptions & { files: strin
 }
 
 export class VitestRunner extends ViteNodeRunner {
-  mocker: VitestMocker
-  entries = new Set<string>()
-
   constructor(public options: ExecuteOptions) {
     super(options)
-    this.mocker = new VitestMocker(options, this.moduleCache)
   }
 
   prepareContext(context: Record<string, any>) {
     const request = context.__vite_ssr_import__
     const resolveId = context.__vitest_resolve_id__
 
-    const mocker = this.mocker.withRequest(request)
-
-    mocker.on('mocked', (dep: string, module: Partial<ModuleCache>) => {
-      this.moduleCache.set(dep, module)
-    })
+    const mocker = new VitestMocker(this.options, this.moduleCache, request)
 
     const workerState = getWorkerState()
 

packages/vitest/src/runtime/mocker.ts

@@ -8,8 +8,6 @@ import { distDir } from '../constants'
 import type { PendingSuiteMock } from '../types/mocker'
 import type { ExecuteOptions } from './execute'
 
-type Callback = (...args: any[]) => unknown
-
 interface ViteRunnerRequest {
   (dep: string): any
   callstack: string[]
@@ -19,31 +17,22 @@ export class VitestMocker {
   private static pendingIds: PendingSuiteMock[] = []
   private static spyModule?: typeof import('../integrations/spy')
 
-  private request!: ViteRunnerRequest
-
-  private root: string
-  private callbacks: Record<string, ((...args: any[]) => unknown)[]> = {}
-
   constructor(
     public options: ExecuteOptions,
     private moduleCache: ModuleCacheMap,
-    request?: ViteRunnerRequest,
-  ) {
-    this.root = this.options.root
-    this.request = request!
-  }
+    private request: ViteRunnerRequest,
+  ) {}
 
-  get mockMap() {
-    return this.options.mockMap
+  private get root() {
+    return this.options.root
   }
 
-  public on(event: string, cb: Callback) {
-    this.callbacks[event] ??= []
-    this.callbacks[event].push(cb)
+  private get base() {
+    return this.options.base
   }
 
-  private emit(event: string, ...args: any[]) {
-    (this.callbacks[event] ?? []).forEach(fn => fn(...args))
+  private get mockMap() {
+    return this.options.mockMap
   }
 
   public getSuiteFilepath(): string {
@@ -91,20 +80,16 @@ export class VitestMocker {
     if (cached)
       return cached
     const exports = await mock()
-    this.emit('mocked', cacheName, { exports })
+    this.moduleCache.set(cacheName, { exports })
     return exports
   }
 
   public getDependencyMock(dep: string) {
-    return this.getMocks()[this.resolveDependency(dep)]
-  }
-
-  public resolveDependency(dep: string) {
-    return normalizeRequestId(dep.replace(this.root, '')).replace(/^\/@fs\//, isWindows ? '' : '/')
+    return this.getMocks()[this.normalizePath(dep)]
   }
 
   public normalizePath(path: string) {
-    return normalizeRequestId(path.replace(this.root, '')).replace(/^\/@fs\//, isWindows ? '' : '/')
+    return normalizeRequestId(path.replace(this.root, ''), this.base).replace(/^\/@fs\//, isWindows ? '' : '/')
   }
 
   public getFsPath(path: string, external: string | null) {
@@ -183,22 +168,22 @@ export class VitestMocker {
   public unmockPath(path: string) {
     const suitefile = this.getSuiteFilepath()
 
-    const fsPath = this.normalizePath(path)
+    const id = this.normalizePath(path)
 
     const mock = this.mockMap.get(suitefile)
-    if (mock?.[fsPath])
-      delete mock[fsPath]
+    if (mock?.[id])
+      delete mock[id]
   }
 
   public mockPath(path: string, external: string | null, factory?: () => any) {
     const suitefile = this.getSuiteFilepath()
+    const id = this.normalizePath(path)
 
-    const fsPath = this.normalizePath(path)
+    const mocks = this.mockMap.get(suitefile) || {}
 
-    if (!this.mockMap.has(suitefile))
-      this.mockMap.set(suitefile, {})
+    mocks[id] = factory || this.resolveMockPath(path, external)
 
-    this.mockMap.get(suitefile)![fsPath] = factory || this.resolveMockPath(path, external)
+    this.mockMap.set(suitefile, mocks)
   }
 
   public async importActual<T>(id: string, importer: string): Promise<T> {
@@ -234,8 +219,10 @@ export class VitestMocker {
   }
 
   public async requestWithMock(dep: string) {
-    await this.ensureSpy()
-    await this.resolveMocks()
+    await Promise.all([
+      this.ensureSpy(),
+      this.resolveMocks(),
+    ])
 
     const mock = this.getDependencyMock(dep)
 
@@ -249,7 +236,7 @@ export class VitestMocker {
       const cacheKey = toFilePath(dep, this.root)
       const mod = this.moduleCache.get(cacheKey)?.exports || await this.request(dep)
       const exports = this.mockValue(mod)
-      this.emit('mocked', cacheName, { exports })
+      this.moduleCache.set(cacheName, { exports })
       return exports
     }
     if (typeof mock === 'function' && !callstack.includes(`mock:${dep}`)) {
@@ -271,8 +258,4 @@ export class VitestMocker {
   public queueUnmock(id: string, importer: string) {
     VitestMocker.pendingIds.push({ type: 'unmock', id, importer })
   }
-
-  public withRequest(request: ViteRunnerRequest) {
-    return new VitestMocker(this.options, this.moduleCache, request)
-  }
 }

test/base/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "@vitest/test-base",
+  "private": true,
+  "scripts": {
+    "test": "vitest",
+    "coverage": "vitest run --coverage"
+  },
+  "devDependencies": {
+    "vitest": "workspace:*"
+  }
+}

test/base/src/index.ts

@@ -0,0 +1 @@
+export const foo = 'foo'

test/base/test/mocking-with-base.spec.ts

@@ -0,0 +1,10 @@
+import { expect, test, vi } from 'vitest'
+import { foo } from '../src'
+
+vi.mock('../src', () => ({
+  foo: 'baz',
+}))
+
+test('module is mocked', () => {
+  expect(foo).toBe('baz')
+})

test/base/vitest.config.ts

@@ -0,0 +1,5 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  base: '/some/base/url',
+})