V15 causes tests to throw `act` warnings about react-testing-library HOT 4 OPEN

Having the same issue with tests with react 18.3.0. Tried to put "@testing-library/dom": "10.0.0" to overrides section of package.json, no luck

Error: Expected test not to call console.error().

If the error is expected, test for it explicitly by mocking it out using jest.spyOn(console, 'error').mockImplementation() and test that the warning occurs.

Warning: `ReactDOMTestUtils.act` is deprecated in favor of `React.act`. Import `act` from `react` instead of `react-dom/test-utils`. See https://react.dev/warnings/react-dom-test-utils for more info.

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@belozerov The warning you see here is related to a bug in React's release where they didn't export act but only unstable_act as can be seen here: #1314.

@brandanking-decently - To verify that it's indeed that problem, you'll need to see if you have multiple version of @testing-library/dom installed. If you do, you'll need to use yarn resolutions of npm overrides to set it to the same version (10), this is defined in your package.json file.

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@MatanBobi I am also getting this issue too, can you explain how to resolve this. Maybe a code snippet would be great. Thanks

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This is usually happening due to multiple instances of @testing-library/dom which is a peer dependency of user-event and a dependency for RTL. Try resolving to one version using npm overrides or yarn resolutions. We're currently working on moving DTL to a peer dependency in RTL too.

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