chromium/third_party/blink/web_tests/virtual/css-custom-state-only-deprecated-syntax/external/wpt/custom-elements/state/state-pseudo-class-expected.txt

This is a testharness.js-based test.
[FAIL] :state() parsing passes
  Failed to execute 'querySelector' on 'Document': ':state(foo)' is not a valid selector.
[FAIL] :state(foo) serialization
  Cannot read properties of undefined (reading 'cssText')
[FAIL] :state(foo) in simple cases
  Failed to execute 'matches' on 'Element': ':state(foo)' is not a valid selector.
[FAIL] :state(foo) and other pseudo classes
  Failed to execute 'add' on 'CustomStateSet': The specified value 'foo' must start with '--'.
[FAIL] :state(foo) and ::part()
  Failed to execute 'add' on 'CustomStateSet': The specified value 'innerFoo' must start with '--'.
[FAIL] :state(foo) and :host()
  Failed to execute 'add' on 'CustomStateSet': The specified value 'dotted' must start with '--'.
Harness: the test ran to completion.