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jest@28 support

See original GitHub issue

🚀 Feature Proposal

Jest 28 has landed.

Doesn’t work with current ts-jest as-is, gives this error:

 FAIL  src/test/env.test.ts
  ● Test suite failed to run

    ● Invalid return value:
      Code transformer's `process` method must return an object containing `code` key 
      with processed string. If `processAsync` method is implemented it must return 
      a Promise resolving to an object containing `code` key with processed string.
      Code Transformation Documentation:
      https://jestjs.io/docs/code-transformation
      
      at ScriptTransformer._buildTransformResult (node_modules/@jest/transform/build/ScriptTransformer.js:504:15)
      at ScriptTransformer.transformSource (node_modules/@jest/transform/build/ScriptTransformer.js:623:17)
      at ScriptTransformer._transformAndBuildScript (node_modules/@jest/transform/build/ScriptTransformer.js:760:40)
      at ScriptTransformer.transform (node_modules/@jest/transform/build/ScriptTransformer.js:817:19)

Created this issue to track when jest28 support will land here.

Thanks.

Motivation

Example

No response

Issue Analytics

State:
Created a year ago
Reactions:72
Comments:36 (2 by maintainers)

Top GitHub Comments

5reactions

ahnpnlcommented, Apr 27, 2022

The warning has been reverted in #3466 😃

5reactions

Snaptagscommented, Apr 26, 2022

Thanks! Adding /legacy to something does not sound very future-proof, though 😄

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