Removal of __esModule

[larsk2009]

Hi,

I am trying to update from v4.1.6 to v4.2.2. I ran into an issue with my Cypress component tests where I am stubbing the router. I used to be able to do this:

I use Typescript:

import * as Router from "vue-router";
...

// In the test case
const mockRouter = {
      push: cy.spy().as("pushSpy"),
    };

    cy.stub(Router, "useRouter").returns(mockRouter);

This would create a mock router and I could assert if the pushSpy had been called. After upgrading to v4.2.2 it doesn't work anymore. I noticed that in the output of router, the below line was removed:

Object.defineProperty(exports, '__esModule', { value: true });

If I add that line back in the vue-router.cjs file everything works again. Also if I change my test to this:

const Router = require("vue-router");
...

// In the test case
const mockRouter = {
      push: cy.spy().as("pushSpy"),
    };

    cy.stub(Router, "useRouter").returns(mockRouter);

everything also seems to work again.

My question is: Why was this line removed? Is my issue intended or is it something that should be fixed in router?

[larsk2009]

Actually, if I change my test to

import router from "vue-router";
...

// In the test case
const mockRouter = {
      push: cy.spy().as("pushSpy"),
    };

    cy.stub(router, "useRouter").returns(mockRouter);

It also works, so that seems fine. I'll just close this issue again.