Add Jest transformer using next-swc

[timneutkens]

We have to add a Jest transformer that leverages next-swc so that people don't have to opt-out of using next-swc just to transform tests as it generally requires a .babelrc with next/babel in order to compile components correctly.

[adikari]

Is there ETA on this? Since upgrading to Next12 I am having to disable all my tests.

[Thisen]

Is there ETA on this? Since upgrading to Next12 I am having to disable all my tests.

You can do the following to your jest.config.js:

// ...
transform: {
    "^.+\\.(js|jsx|ts|tsx)$": ["babel-jest", { presets: ["next/babel"] }],
  },
// ...

This will use the next/babel preset, without needing a .babelrc file.

[balazsorban44]

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