rewire seems to break `import * as foo from 'module'`

I've just introduced babel-plugin-rewire into my repo so I can test my non-exported functions. Sounds great.

But I have lots of jest tests broken because of the following test scenario, which i've dumbed down to reproduce the problem.

module1.js

const getMessageText = () => {
    return 'this is text from myFunc';
};

export { getMessageText };

module2.js

import { getMessageText } from './module1';

const testFunc = () => {
    return getMessageText();
};

export { testFunc };

What I want to do in my test, is:

check to see that the named export getMessageText() was called when testFunc was called.
mock out getMessageText() to return a different outcome.

./__tests__/module2.test.js

import { testFunc } from '../module2';
import * as allFuncs from '../module1';

describe('should be able to check the mock', () => {
    const spy = jest
        .spyOn(allFuncs, 'getMessageText')
        .mockImplementation(() => 'overridden text');

    test('make sure spy gets executed', () => {
        const result = testFunc();
        expect(spy).toHaveBeenCalled();
        expect(result).toEqual('overridden text');
    });
});

If I run the test without babel-plugin-rewire, I get this:

 > npx jest module2
 PASS   client  src/jest-test/__tests__/module2.test.js
  should be able to check the mock
    ✓ make sure spy gets executed (4ms)

If I run the test with babel-plugin-rewire, I get this:

 > npx jest module2
 FAIL   client  src/jest-test/__tests__/module2.test.js
  should be able to check the mock
    ✕ make sure spy gets executed (4ms)

  ● should be able to check the mock › make sure spy gets executed

    expect(jest.fn()).toHaveBeenCalled()

    Expected number of calls: >= 1
    Received number of calls:    0

       9 |     test('make sure spy gets executed', () => {
      10 |         const result = testFunc();
    > 11 |         expect(spy).toHaveBeenCalled();
         |                     ^
      12 |         expect(result).toEqual('overridden text');
      13 |     });
      14 | });

      at Object.toHaveBeenCalled (src/client/modules/jest-test/__tests__/module2.test.js:11:21)

I have tried so many workarounds but I just can't find one that works, and I wonder if this is a bug with babel-plugin-rewire.

speedskater / babel-plugin-rewire

rewire seems to break `import * as foo from 'module'` #233