Robin Malfait 52f94c74bb Improve codebase quality (#19999) ...

Small PR that improves the overall quality of the codebase. It's a bit
of everything:

1. Using correct variants for the variants we are testing
2. Use `@reference` instead of `@import` in a test, testing the
`@reference` according to the test name
3. Use `using` for Vitest related mocks. They have a `Symbol.dispose`
implemented, so we can don't have to restore mocks ourselves (right now,
some of them are not cleaned up at all).
4. Updated deprecated `.toThrowError` with `.toThrow` APIs

## Test plan

Everything still passes.

[ci-all]

2026-04-30 23:32:37 +02:00

..

config.test.ts

Improve integration tests (stability + performance) (#15125)

2024-12-12 13:48:56 +01:00

core-as-postcss-plugin.test.ts

Improve codebase quality (#19999)

2026-04-30 23:32:37 +02:00

index.test.ts

Fix failing postcss integration test (#19436)

2025-12-12 09:38:08 -05:00

multi-root.test.ts

Make @reference emit variable fallbacks instead of CSS variable declarations (#16774)

2025-02-25 11:36:43 +01:00

next.test.ts

chore: fix some typos in comments (#19475)

2025-12-22 13:09:19 +00:00

plugins.test.ts

Make @reference emit variable fallbacks instead of CSS variable declarations (#16774)

2025-02-25 11:36:43 +01:00

source.test.ts

Use @layer properties for @property polyfills (#17506)

2025-04-02 18:16:28 +02:00

url-rewriting.test.ts

Allow users to disable url rewriting in the PostCSS plugin (#18321)

2025-07-30 10:35:10 -04:00