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Uncaught Error: Unexpected object passed to ReactTestInstance constructor (tag: 13). This is probably a bug in React.

See original GitHub issue

Hello,

I’m testing v16.3.0 and I’m getting this warning:

Warning: Detected multiple renderers concurrently rendering the same context provider. This is currently unsupported

My use case is that I wanted to render React Test Renderer (for ex) from a Component in an another (ReactDOM) renderer but it does not seem to work - I wanted to use same Provider in both containers.

I thought React.createContext create objects with no state and could be shared across renderers / Fiber containers… Is there workaround for this? Are there any thoughts on this, Is this a definite behaviour?

Following the warning, I eventually get the error message which I believe is related to the warning:

Uncaught Error: Unexpected object passed to ReactTestInstance constructor (tag: 13). This is probably a bug in React.

thank you for any guidance 😃

Issue Analytics

State:
Created 5 years ago
Comments:9 (7 by maintainers)

Top GitHub Comments

1reaction

sahrenscommented, Jun 10, 2018

@gaearon: works after upgrading to 16.4 😃

0reactions

stereoboostercommented, Jun 27, 2018

For future searchers. I see this error with enzyme https://github.com/stereobooster/react-context-issue (I guess this is not an issue in React itself)

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