Usage of `expect` in `matcherTest` breaks under Vitest without injected globals

[me4502]

The matcherTest function within src/utils.js currently breaks when running under Vitest, without injected globals. This is due to the expect call, which is currently written to use the injected expect global.

Without injected globals, this is an undefined function and therefore always triggers a false response by this matcher test. This then breaks any rules which run the matcher, such as toHaveStyleRule.

[quantizor]

Thanks will fix

[quantizor]

Hi @me4502! A fix for this has been published as a prerelease — please try it out:

npm install jest-styled-components@7.3.2-prerelease.0

matcherTest no longer depends on the global expect — it uses plain JS comparison (RegExp, asymmetric matcher protocol, and strict equality), so toHaveStyleRule now works in Vitest without injected globals.

Fix PR: #460

Let us know if it resolves the issue for you!

[me4502]

Thank you! :) That prerelease build fixes the issue

[quantizor]

Glad to hear it!