Tests are split by categories. Default categories are:

core#

These tests are running in different pools with a single config file. If you just need to test a function call, you can place your test here.

This is the only test category that doesn't start new Vitest instance for every test.

config#

Place your test here if you are testing a config option.

cli#

If you are testing a complex interaction, place your tests here. Type-focused fixtures live under test/e2e/dts/.

browser#

If you are testing browser mode, add your tests here.

ui#

These are e2e tests for UI package. We are using playwright to test it.

watch#

Place your tests here if you are testing Vitest behaviour when file is created/updated/removed.

All other categories just group tests by type.