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fix(module-runner): support getBuiltins #8746

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Merged
merged 1 commit into from
Oct 21, 2025
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fix(module-runner): support getBuiltins #8746

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6 changes: 6 additions & 0 deletions packages/vitest/src/runtime/moduleRunner/moduleTransport.ts
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Original file line number Diff line number Diff line change
@@ -1,11 +1,14 @@
import type { FetchFunction, ModuleRunnerTransport } from 'vite/module-runner'
import type { ResolveFunctionResult } from '../../types/general'
import { builtinModules } from 'node:module'

export interface VitestTransportOptions {
fetchModule: FetchFunction
resolveId: (id: string, importer?: string) => Promise<ResolveFunctionResult | null>
}

const nodeBuiltins = builtinModules.filter(id => !id.includes(':'))

export class VitestTransport implements ModuleRunnerTransport {
constructor(private options: VitestTransportOptions) {}

Expand All @@ -20,6 +23,9 @@ export class VitestTransport implements ModuleRunnerTransport {
if (name !== 'fetchModule') {
return { error: new Error(`Unknown method: ${name}. Expected "fetchModule".`) }
}
if (name === 'getBuiltins') {
return { result: [...nodeBuiltins, /^node:/] }
}
try {
const result = await this.options.fetchModule(...data as Parameters<FetchFunction>)
return { result }
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