Migrate to React 19 #2172
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Migrate to React 19 #2172
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- We set the `@types/react` and `@types/react-dom` package resolutions to `npm:types-react` and `npm:types-react-dom` according to the React 19 migration guide.
- `ReactDOM.render` and `ReactDOM.unmountComponentAtNode` have been removed in React 19. This commit replaces their usage with `rtl.render` and `rtl.cleanup` as recommended in the React 19 migration guide.
- The `renderHook` method in `@testing-library/react-hooks` has now been moved to `@testing-library/react`. This commit updates imports and usages of the `renderHook` function to comply with the new syntax requirements in the [react-hooks-testing-library migration guide](https://github.com/testing-library/react-hooks-testing-library/blob/chore/migration-guide/MIGRATION_GUIDE.md#waitfornextupdate).
- `react-is` has changed the `REACT_ELEMENT_TYPE` symbol from `'react.element'` to `'react.transitional.element'`. We want our changes to be non-breaking and backwards-compatible so we conditionally set the `REACT_ELEMENT_TYPE` based on the detected version of React.
- According to `@testing-library/react` docs, the `cleanup` function is called automatically during the `afterEach` hook and there is no need to manually call it.
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This PR:
Updates
reactandreact-domto v19 beta.Sets the
@types/reactand@types/react-dompackage resolutions tonpm:types-reactandnpm:types-react-domaccording to the React 19 migration guide.Runs tests against different versions of React during CI. Not sure if we want to keep this addition but for now it serves as a way for us to make sure the changes we make are non-breaking and can work with both React 18 and 19.
Removes the now deprecated
react-test-rendererpackage as recommended in the React 19 migration guide.Updates
@testing-library/reactto latest version.Updates
@testing-library/jest-domto latest version.Replaces the now removed
ReactDOM.rendercalls with therenderfunction from@testing-library/reactas recommended in the React 19 migration guide.Replaces the now removed
ReactDOM.unmountComponentAtNodecalls with thecleanupfunction from@testing-library/reactas recommended in the React 19 migration guide.Updates the import path of the
renderHookfunction from@testing-library/react-hooksto@testing-library/reactas recommended by A Note about React 18 Support and react-hooks-testing-library React 18 Migration guide.Removes the now unneeded
@testing-library/react-hookspackage.Updates the new
renderHookcalls according to react-hooks-testing-library React 18 Migration guide.Updates the inlined
react-isimplementation.Click to expand
react-isrelated detailsIn PR#28813
react-ischanged theREACT_ELEMENT_TYPEsymbol from'react.element'to'react.transitional.element'. We want our changes to be non-breaking and backwards-compatible so we conditionally set theREACT_ELEMENT_TYPEbased on the detected version of React. While this is not ideal, thereact-ispackage isCJSand not very tree-shakable. So for now we want to inline it as to not add unnecessary weight to bundle sizes, not to mention the conditional React version check helps keep our changes backwards-compatible.Removes unnecessary
rtl.cleanupfunction calls insideafterEachhooks as per@testing-library/reactdocs, it is done automatically.Expands version ranges of
reactand@types/reactinpeerDependenciesto include version 19.