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When container is document, cleanup steps fails with "TypeError: Cannot read properties of null (reading 'removeChild')" #1329

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Description

@quisido

Just opening this for tracking with the associated PR: #1330 .

When:

render(<Component />, { container: document });

(Untested: This bug may require that Component render a <body> element.)

Then:

TypeError: Cannot read properties of null (reading 'removeChild')

Because:

// pure.js
    if (container.parentNode === document.body) {
      document.body.removeChild(container);
    }

If we first check that document.body is not null, then this error will not occur.

Activity

  1. MatanBobi commented on May 22, 2024

    @MatanBobi
    Member

    @quisido Can you please add a reproduction for this? As long as a document exists, JSDOM implicitly creates document.body for you.

  2. quisido commented on May 22, 2024

    @quisido
    Author

    @quisido Can you please add a reproduction for this? As long as a document exists, JSDOM implicitly creates document.body for you.

    Are you unable to reproduce it? I've hit this in two separate projects just by setting container to document.

    As far as I'm aware, using container: document in any existing test is the only step required to reproduce this.

  3. MatanBobi commented on May 22, 2024

    @MatanBobi
    Member

    Two points here:

    1. We do not have the capacity to try and reproduce every issue that's raised in this repo, that's why we ask people who create issues to provide a cloneable reproduction.
    2. When testing layout components was raised here, I created a solution and It doesn't reproduce there: https://stackblitz.com/edit/rtl-template-68mwxh?file=src%2FApp.test.tsx
  4. m-zuro commented on Oct 10, 2024

    @m-zuro

    @MatanBobi Running into same issue as described here. Here is reproducible example (clone from your StackBlitz but switched from vitest to jest): https://stackblitz.com/edit/stackblitz-starters-3sze3m?file=app%2Flayout.spec.tsx

  5. MatanBobi commented on Oct 10, 2024

    @MatanBobi
    Member

    @m-zuro Thanks.
    In the reproduction you've attached here, the test isn't passing:

    ● Test Suite › Test

    Expected value   undefined
    Received:
      undefined
    
    Message:
      Unable to find an element with the text: Test. This could be because the text is broken up by multiple elements. In this case, you can provide a function for your text matcher to make your matcher more flexible.
    
    Ignored nodes: comments, script, style
    <body />
    

    So I think there's a misconfiguration there.

  6. m-zuro commented on Oct 10, 2024

    @m-zuro

    @MatanBobi sorry, copy/paste job. Updated now, can you re try pls?

    ● Test Suite › Test
    
    Expected value   undefined
    
      Received:
        undefined
      
      Message:
        null is not an object (evaluating 'document.body.removeChild')
    
  7. MatanBobi commented on Dec 7, 2024

    @MatanBobi
    Member

    Sorry it took me a while @m-zuro. This error is odd to me, the only place we're calling document.body.removeChild is after this if statement:

    container.parentNode === document.body
    

    When I run this test locally in our repo, it passes. I'm trying to understand if there's anything different here.

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