fix(web-worker): share mocker with main executor (#6623)

packages/web-worker/src/runner.ts

@@ -2,7 +2,10 @@ import { VitestExecutor } from 'vitest/execute'
 
 export class InlineWorkerRunner extends VitestExecutor {
   constructor(options: any, private context: any) {
+    // share the same mocker as main executor
+    const mocker = (globalThis as any).__vitest_mocker__
     super(options)
+    this.mocker = (globalThis as any).__vitest_mocker__ = mocker
   }
 
   prepareContext(context: Record<string, any>) {

test/core/src/web-worker/mock/worker-dep.ts

@@ -0,0 +1,3 @@
+export function workerDep() {
+  return 'workerDep'
+}

test/core/src/web-worker/mock/worker.ts

@@ -0,0 +1,3 @@
+import { workerDep } from './worker-dep'
+
+self.postMessage(workerDep())

test/core/test/web-worker-mock.test.ts

@@ -0,0 +1,16 @@
+import '@vitest/web-worker'
+import { expect, test, vi } from 'vitest'
+import { workerDep } from '../src/web-worker/mock/worker-dep'
+
+vi.mock(import('../src/web-worker/mock/worker-dep'), () => ({ workerDep: () => 'mocked' }))
+
+test('mock', async () => {
+  expect(workerDep()).toMatchInlineSnapshot(`"mocked"`)
+  const worker = new Worker(new URL('../src/web-worker/mock/worker', import.meta.url))
+  const data = await new Promise((resolve) => {
+    worker.addEventListener('message', (e) => {
+      resolve(e.data)
+    })
+  })
+  expect(data).toMatchInlineSnapshot(`"mocked"`)
+})