Support react-test-renderer

[SimenB]

It's amazing in Jest tests. But I get

Cannot find module 'react/lib/ReactComponentTreeHook' from 'ReactDebugTool.js'

  at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:151:17)
  at Object.<anonymous> (node_modules/react-test-renderer/lib/ReactDebugTool.js:16:30)
  at Object.<anonymous> (node_modules/react-test-renderer/lib/ReactInstrumentation.js:19:24)

With the following config:

"moduleNameMapper": {
  "^.+\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/__mocks__/FileStub.js",
  "^.+\\.css$": "identity-obj-proxy",
  "fbjs/lib/invariant": "invariant",
  "fbjs/lib/warning": "warning",
  "react": "preact-compat",
  "react-dom": "preact-compat"
},

https://github.com/facebook/react/blob/master/src/isomorphic/hooks/ReactComponentTreeHook.js

Kinda related to enzymejs/enzyme#715 I suppose

[developit]

Hi Simen! Definitely want to support this outcome, though I think it's likely to be a module that gets directly aliased (preact-test-renderer), since the internals behind that facade a little vast.

[jackyef]

Hi, sorry to bring up this old issue. I was wondering if there has been any solution to this now?

I found this workaround, but still unsure whether that it is the recommended way.

[marvinhagemeister]

@jackyef We don't have an official json renderer right now. In either way we won't add new features to preact-compat which is based on an older version of Preact (8.x). preact-compat was moved to core and is available under preact/compat.

Let's move the discussion over to the main Preact repo