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[Feature]: Expose equals from expect package.

See original GitHub issue

🚀 Feature Proposal

Slightly popular package jest-when(https://www.npmjs.com/package/jest-when) that depend on “expect” use portion of private api require('expect/build/jasmineUtils') I just raised PR to use jest as peer https://github.com/timkindberg/jest-when/pull/84

We would like to ask jest to expose “equals” from jasmineUtils or provide suitable API to get current equals matcher.

Motivation

I am worried that can break with ESM enforcing exports fields
jest-when use private api it is withing jest project rights to break it on minor releases.
Hopefully jest project consider adding jest-when functionality to core as it is useful and good API

Example

No response

Pitch

See above motivation. Either expose equals or provide jest-when compatible functionality in core.

Issue Analytics

State:
Created 2 years ago
Reactions:3
Comments:9

Top GitHub Comments

8reactions

SimenBcommented, Sep 13, 2021

Hmm, I guess this isn’t a custom matcher, but used within the mock function itself? That’s a bit more tricky. Essentially same as #11816

5reactions

SimenBcommented, Feb 7, 2022

Hi @ErisDS, and thanks for the detailed use case! I’ll be adding a separate @jest/expect-utils in Jest 28 🙂 It’ll suddenly be available. jest-snapshot itself also uses “private” stuff from expect

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