diff --git a/test/core/test/externalization.test.ts b/test/core/test/externalization.test.ts
deleted file mode 100644
index 93459f3f5..000000000
--- a/test/core/test/externalization.test.ts
+++ /dev/null
@@ -1,47 +0,0 @@
-import { describe, it, expect } from 'vitest'
-import { normalizeId, shouldExternalize, toFilePath } from '../../../src/node/execute'
-
-describe('externalization', () => {
-  it('normalize', () => {
-    const root = '/project/root/'
-
-    function normalize(id: string) {
-      return toFilePath(normalizeId(id), root)
-    }
-
-    expect(normalize('')).toEqual('')
-    expect(normalize('/@id/__hi__')).toEqual('__hi__')
-    expect(normalize('/@fs/some/path')).toEqual('/some/path')
-    expect(normalize('/@fs//some/path')).toEqual('/some/path')
-    expect(normalize('/bare/path')).toEqual(`${root}bare/path`)
-    expect(normalize('/@fs/D:\\some\\path')).toEqual('/D:/some/path')
-    expect(normalize('/@fs//D:\\some\\path')).toEqual('/D:/some/path')
-    expect(normalize('/@fs//D:/some/path')).toEqual('/D:/some/path')
-  })
-
-  it('externalize default', async() => {
-    const root = '/project/root/'
-
-    async function ext(id: string, _root = root) {
-      const normalized = normalizeId(id)
-      const filepath = toFilePath(normalized, _root)
-      const result = await shouldExternalize(filepath, { inline: [], external: [] })
-      return result
-    }
-
-    expect(await ext('')).toBeFalsy()
-    expect(await ext(`${root}/src/hi.ts`)).toBeFalsy()
-    expect(await ext('/@fs/hi/node_modules/any/index.js')).toBeTruthy()
-    expect(await ext('/@fs/D:/a/vitest/vitest/node_modules/.pnpm/@jest+test-result@27.4.2/node_modules/@jest/test-result/build/index.js')).toBeTruthy()
-    expect(await ext('/@fs/D:\\a\\node_modules\\.pnpm\\@jest+test-result@27.4.2\\node_modules\\@jest\\test-result\\build\\index.js')).toBeTruthy()
-
-    // inline esm
-    expect(await ext('/@fs/hi/node_modules/any/index.esm.js')).toBeFalsy()
-    expect(await ext('/@fs/hi/node_modules/any/index.es6.js')).toBeFalsy()
-    expect(await ext('/@fs/hi/node_modules/any/esm/index.js')).toBeFalsy()
-    expect(await ext('/@fs/hi/node_modules/vue/index.js')).toBeFalsy()
-
-    // external cjs
-    expect(await ext('/@fs/hi/node_modules/vue/index.cjs.js')).toBeTruthy()
-  })
-})