Vitest 0.31 Breaks Importing Default and Namespace In One Line while Mocking Module

[alexlafroscia]

Describe the bug

Prior to Vitest 0.31, the following code worked just fine

import defaultExport, * as EntireModule from '../whatever';

vi.mock('../whatever', (importOriginal) => importOriginal());

However, after Vitest 0.31, this breaks; EntireModule is no longer defined.

If you remove the vi.mock call, the module is defined (but of course, you lose your mock behavior).

Separating the import of the default and entire module into two separate lines continues to work in Vitest 0.31 as well, but the syntax of importing both in one line of code is valid syntax that should work.

This bug is expressed in Vitest 0.32 as well, but the issue appeared in our codebase while upgrading from 0.30.1 to 0.31.4

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-qerkpn?file=test%2Fadd.test.ts

The following test code results in a failure (shown in the attached screenshot)

import { expect, test, vi } from 'vitest';
import add, * as AddModule from '../src/add';

vi.mock('../src/add', (importOriginal) => {
  return importOriginal();
});

test('the default export', () => {
  expect(add(1, 2)).toBe(3);
});

test('the namespace export', () => {
  expect(AddModule.default(1, 2)).toBe(3);
});

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 16.14.2 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 7.17.0 - /usr/local/bin/npm
  npmPackages:
    @vitest/ui: latest => 0.32.0 
    vite: latest => 4.3.9 
    vitest: latest => 0.32.0

Used Package Manager

npm

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• Read the Contributing Guidelines.
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• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

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• vitest-dev-vitest-qerkpn (Open reproduction)