msw test breaking

@kettanaito, after upgrading msw, we’re getting this test failure:

 FAIL  src/__tests__/index.js
  ● Test suite failed to run

    Error: Failed to restore patched modules: no patches found. Did you forget to run ".apply()"?

      36 |
      37 | beforeAll(() => server.listen(backend))
    > 38 | afterAll(() => server.close())
         |                       ^
      39 | afterEach(() => server.resetHandlers())
      40 |

      at Object.restore (node_modules/@mswjs/interceptors/src/createInterceptor.ts:83:15)
      at Object.close (node_modules/msw/node/lib/index.js:7690:29)
      at Object.<anonymous> (src/setup-tests.tsx:38:23)

I’ve dug a little bit but I’m not sure what’s changed and why this is happening. Any ideas?

[kentcdodds]

I figured it out! Sorry to make you spend time on this. It turns out these tests run the same code that runs when the app starts up and that includes calling startWorker 🤦 So we were calling createInterceptor twice which I guess is the issue. Here’s the fix: https://github.com/kentcdodds/react-workshop-app/commit/a204e5d453e9180629f527b7fe74cd175626cd83

Thanks for your help!

[kentcdodds]

Thanks for looking into it. This should get things reproducing for you:

git clone https://github.com/kentcdodds/react-workshop-app.git
cd ./react-workshop-app
npm run setup