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More extensible snapshot plugin system (custom match and diff)

See original GitHub issue

Do you want to request a feature or report a bug? Request a feature

What is the current behavior? Currently we are only able to specify serializers for snapshot, i.e. expect.addSnapshotSerializer(serializer).

Comparison on actual/expected snapshot value is done on === equality comparison basis https://github.com/facebook/jest/blob/master/packages/jest-snapshot/src/State.js#L123

What is the expected behavior? Ability to specify custom compare/match function for other more advanced use cases

Issue Analytics

State:
Created 5 years ago
Comments:5 (1 by maintainers)

Top GitHub Comments

1reaction

SimenBcommented, Apr 24, 2018

Great! Feel free to comment here if the API is lacking.

PR also most welcome for some docs on that 😃

0reactions

github-actions[bot]commented, May 12, 2021

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.

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