[parse-is-where.html]
  [":is(div )" should be a valid selector]
    expected: FAIL

  [":where(div )" should be a valid selector]
    expected: FAIL

  [":is(div + bar, div ~ .baz)" should be a valid selector]
    expected: FAIL

  [":where(div + bar, div ~ .baz)" should be a valid selector]
    expected: FAIL

  [":is(:is(div))" should be a valid selector]
    expected: FAIL

  [":where(:is(div))" should be a valid selector]
    expected: FAIL

  [":is(:where(div))" should be a valid selector]
    expected: FAIL

  [":where(:where(div))" should be a valid selector]
    expected: FAIL

  [":host(:is(div))" should be a valid selector]
    expected: FAIL

  [":host(:where(div))" should be a valid selector]
    expected: FAIL

  [":host(:is(div ))" should be a valid selector]
    expected: FAIL

  [":host(:where(div ))" should be a valid selector]
    expected: FAIL

  [":host(:is(div .foo))" should be a valid selector]
    expected: FAIL

  [":host(:where(div .foo))" should be a valid selector]
    expected: FAIL

  [":is(:hover, :active)" should be a valid selector]
    expected: FAIL

  [":where(:hover, :active)" should be a valid selector]
    expected: FAIL

  [":is(div):hover" should be a valid selector]
    expected: FAIL

  [":where(div):hover" should be a valid selector]
    expected: FAIL

  [":is(div)::before" should be a valid selector]
    expected: FAIL

  [":where(div)::before" should be a valid selector]
    expected: FAIL

  [":is(::before)" should be a valid selector]
    expected: FAIL

  [":where(::before)" should be a valid selector]
    expected: FAIL

  [":is(div) + bar" should be a valid selector]
    expected: FAIL

  [":where(div) + bar" should be a valid selector]
    expected: FAIL

  ["::part(foo):is(:hover)" should be a valid selector]
    expected: FAIL

  ["::part(foo):where(:hover)" should be a valid selector]
    expected: FAIL

  ["::part(foo):is([attr='value'\])" should be a valid selector]
    expected: FAIL

  ["::part(foo):where([attr='value'\])" should be a valid selector]
    expected: FAIL

  [":not(:is(div))" should be a valid selector]
    expected: FAIL

  [":not(:where(div))" should be a valid selector]
    expected: FAIL

  [":not(:is(div .foo))" should be a valid selector]
    expected: FAIL

  [":not(:where(div .foo))" should be a valid selector]
    expected: FAIL