[register-property-syntax-parsing.html]
  [syntax:'*', initialValue:'a' is valid]
    expected: FAIL

  [syntax:' * ', initialValue:'b' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'2px' is valid]
    expected: FAIL

  [syntax:' <number>', initialValue:'5' is valid]
    expected: FAIL

  [syntax:'<percentage> ', initialValue:'10%' is valid]
    expected: FAIL

  [syntax:'<color>+', initialValue:'red' is valid]
    expected: FAIL

  [syntax:' <length>+ | <percentage>', initialValue:'2px 8px' is valid]
    expected: FAIL

  [syntax:'<length>|<percentage>|<length-percentage>', initialValue:'2px' is valid]
    expected: FAIL

  [syntax:'<color> | <image> | <url> | <integer> | <angle>', initialValue:'red' is valid]
    expected: FAIL

  [syntax:'<time> | <resolution> | <transform-list> | <custom-ident>', initialValue:'red' is valid]
    expected: FAIL

  [syntax:'*', initialValue:':> hello' is valid]
    expected: FAIL

  [syntax:'*', initialValue:'([ brackets \]) { yay (??)}' is valid]
    expected: FAIL

  [syntax:'*', initialValue:'yep 'this is valid too'' is valid]
    expected: FAIL

  [syntax:'*', initialValue:'unmatched opening bracket is valid :(' is valid]
    expected: FAIL

  [syntax:'*', initialValue:'"' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'0' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10px /*:)*/' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:' calc(-2px)' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(2px*4 + 10px)' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'7.1e-4cm' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(7in - 12px)' is valid]
    expected: FAIL

  [syntax:'<length>+', initialValue:'2px 7px calc(8px)' is valid]
    expected: FAIL

  [syntax:'<percentage>', initialValue:'-9.3e3%' is valid]
    expected: FAIL

  [syntax:'<length-percentage>', initialValue:'-54%' is valid]
    expected: FAIL

  [syntax:'<length-percentage>', initialValue:'0' is valid]
    expected: FAIL

  [syntax:'<length-percentage>', initialValue:'calc(-11px + 10.4%)' is valid]
    expected: FAIL

  [syntax:'<number>', initialValue:'-109' is valid]
    expected: FAIL

  [syntax:'<number>', initialValue:'2.3e4' is valid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'-109' is valid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'19' is valid]
    expected: FAIL

  [syntax:'<angle>', initialValue:'10deg' is valid]
    expected: FAIL

  [syntax:'<angle>', initialValue:'20.5rad' is valid]
    expected: FAIL

  [syntax:'<angle>', initialValue:'calc(50grad + 3.14159rad)' is valid]
    expected: FAIL

  [syntax:'<time>', initialValue:'2s' is valid]
    expected: FAIL

  [syntax:'<time>', initialValue:'calc(2s - 9ms)' is valid]
    expected: FAIL

  [syntax:'<resolution>', initialValue:'10dpi' is valid]
    expected: FAIL

  [syntax:'<resolution>', initialValue:'3dPpX' is valid]
    expected: FAIL

  [syntax:'<resolution>', initialValue:'-5.3dpcm' is valid]
    expected: FAIL

  [syntax:'<transform-list>', initialValue:'scale(2)' is valid]
    expected: FAIL

  [syntax:'<transform-list>', initialValue:'translateX(2px) rotate(20deg)' is valid]
    expected: FAIL

  [syntax:'<color>', initialValue:'rgb(12, 34, 56)' is valid]
    expected: FAIL

  [syntax:'<color>', initialValue:'lightgoldenrodyellow' is valid]
    expected: FAIL

  [syntax:'<image>', initialValue:'url(a)' is valid]
    expected: FAIL

  [syntax:'<image>', initialValue:'linear-gradient(yellow, blue)' is valid]
    expected: FAIL

  [syntax:'<url>', initialValue:'url(a)' is valid]
    expected: FAIL

  [syntax:'banana', initialValue:'banana' is valid]
    expected: FAIL

  [syntax:'bAnAnA', initialValue:'bAnAnA' is valid]
    expected: FAIL

  [syntax:'ba-na-nya', initialValue:'ba-na-nya' is valid]
    expected: FAIL

  [syntax:'banana', initialValue:'banan\\61' is valid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'banan\\61' is valid]
    expected: FAIL

  [syntax:'big | bigger | BIGGER', initialValue:'bigger' is valid]
    expected: FAIL

  [syntax:'foo+|bar', initialValue:'foo foo foo' is valid]
    expected: FAIL

  [syntax:'banana\t', initialValue:'banana' is valid]
    expected: FAIL

  [syntax:'\nbanana\r\n', initialValue:'banana' is valid]
    expected: FAIL

  [syntax:'ba\x0c\n|\tna\r|nya', initialValue:'nya' is valid]
    expected: FAIL

  [syntax:'null', initialValue:'null' is valid]
    expected: FAIL

  [syntax:'undefined', initialValue:'undefined' is valid]
    expected: FAIL

  [syntax:'array', initialValue:'array' is valid]
    expected: FAIL

  [syntax:'banana,nya', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'<\\6c ength>', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<banana>', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'<Number>', initialValue:'10' is invalid]
    expected: FAIL

  [syntax:'<length', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<LENGTH>', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'< length>', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<length >', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<length> +', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<length>++', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<length> | *', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'*|banana', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'*+', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'initial', initialValue:'initial' is invalid]
    expected: FAIL

  [syntax:'inherit', initialValue:'inherit' is invalid]
    expected: FAIL

  [syntax:'unset', initialValue:'unset' is invalid]
    expected: FAIL

  [syntax:'<length>|initial', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<length>|INHERIT', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'<percentage>|unsEt', initialValue:'2%' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'initial' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'inherit' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'unset' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'revert' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'initial' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo inherit bar' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:')' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'([)\]' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'whee!' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'"\n' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'url(moo '')' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'semi;colon' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'var(invalid var ref)' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'var(--foo)' is invalid]
    expected: FAIL

  [syntax:'banana', initialValue:'bAnAnA' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'var(--moo)' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10%' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(5px + 10%)' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(5px * 3px / 6px)' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10em' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(4px + 3em)' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'calc(4px + calc(8 * 2em))' is invalid]
    expected: FAIL

  [syntax:'<length>+', initialValue:'calc(2ex + 16px)' is invalid]
    expected: FAIL

  [syntax:'<length>+', initialValue:'10px calc(20px + 4rem)' is invalid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10px;' is invalid]
    expected: FAIL

  [syntax:'<length-percentage>', initialValue:'calc(2px + 10% + 7ex)' is invalid]
    expected: FAIL

  [syntax:'<percentage>', initialValue:'0' is invalid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'1.0' is invalid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'1e0' is invalid]
    expected: FAIL

  [syntax:'<number>|foo', initialValue:'foo var(--foo, bla)' is invalid]
    expected: FAIL

  [syntax:'<angle>', initialValue:'0' is invalid]
    expected: FAIL

  [syntax:'<angle>', initialValue:'10%' is invalid]
    expected: FAIL

  [syntax:'<time>', initialValue:'2px' is invalid]
    expected: FAIL

  [syntax:'<resolution>', initialValue:'10' is invalid]
    expected: FAIL

  [syntax:'<transform-list>', initialValue:'scale()' is invalid]
    expected: FAIL

  [syntax:'<transform-list>+', initialValue:'translateX(2px) rotate(20deg)' is invalid]
    expected: FAIL

  [syntax:'<color>', initialValue:'fancy-looking' is invalid]
    expected: FAIL

  [syntax:'<image>', initialValue:'banana.png' is invalid]
    expected: FAIL

  [syntax:'<url>', initialValue:'banana.png' is invalid]
    expected: FAIL

  [syntax:'<transform-function>', initialValue:'translateX(2px)' is valid]
    expected: FAIL

  [syntax:'<transform-function>|<integer>', initialValue:'5' is valid]
    expected: FAIL

  [syntax:'<transform-function>|<integer>', initialValue:'scale(2)' is valid]
    expected: FAIL

  [syntax:'<transform-function>+', initialValue:'translateX(2px) rotate(42deg)' is valid]
    expected: FAIL

  [syntax:'<transform-function>', initialValue:'scale()' is invalid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'calc(1 + 2)' is valid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'calc(3.1415)' is valid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'calc(1)' is valid]
    expected: FAIL

  [syntax:'<integer>', initialValue:'calc(3.1415 + 3.1415)' is valid]
    expected: FAIL

  [syntax:'<length>#', initialValue:'2px, 7px, calc(8px)' is valid]
    expected: FAIL

  [syntax:'<length>#', initialValue:'' is invalid]
    expected: FAIL

  [syntax:'<length>+', initialValue:'' is invalid]
    expected: FAIL

  [syntax:'<transform-list>+', initialValue:'scale(2)' is invalid]
    expected: FAIL

  [syntax:'\\1F914 hmm', initialValue:'🤔hmm' is valid]
    expected: FAIL

  [syntax:'<length>#+', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:' <length>+ | <color>#', initialValue:'red, blue' is valid]
    expected: FAIL

  [syntax:'|banana', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'hmm\\1F914', initialValue:'hmm🤔' is valid]
    expected: FAIL

  [syntax:'\\1F914\\1F914', initialValue:'🤔🤔' is valid]
    expected: FAIL

  [syntax:'||', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'\t<color>\n|   foo', initialValue:'foo' is valid]
    expected: FAIL

  [syntax:'\\1F914', initialValue:'🤔' is valid]
    expected: FAIL

  [syntax:'<length>+#', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:'\\1F914hmm', initialValue:'🤔hmm' is valid]
    expected: FAIL

  [syntax:'<transform-list>#', initialValue:'scale(2)' is invalid]
    expected: FAIL

  [syntax:'banan\\61', initialValue:'banana' is valid]
    expected: FAIL

  [syntax:'|', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'<length>##', initialValue:'10px' is invalid]
    expected: FAIL

  [syntax:' |', initialValue:'banana' is invalid]
    expected: FAIL

  [syntax:'\\1F914 hmm', initialValue:'🤔hmm' is valid]
    expected: FAIL

  [syntax:'default', initialValue:'default' is invalid]
    expected: FAIL

  [syntax:'hmm\\1F914', initialValue:'hmm🤔' is valid]
    expected: FAIL

  [syntax:'\\1F914\\1F914', initialValue:'🤔🤔' is valid]
    expected: FAIL

  [syntax:'<color>|REVert', initialValue:'red' is invalid]
    expected: FAIL

  [syntax:'\\1F914', initialValue:'🤔' is valid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'default' is invalid]
    expected: FAIL

  [syntax:'\\1F914hmm', initialValue:'🤔hmm' is valid]
    expected: FAIL

  [syntax:'<integer>|deFAUlt', initialValue:'1' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo revert bar' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'revert' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo default bar' is invalid]
    expected: FAIL

  [syntax:'revert', initialValue:'revert' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo unset bar' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'inherit' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo initial bar' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'unset' is invalid]
    expected: FAIL

  [syntax:'foo § bar', initialValue:'foo § bar' is invalid]
    expected: FAIL

  [syntax:'Foo | bar', initialValue:'Bar' is invalid]
    expected: FAIL

  [syntax:'<length> <number>', initialValue:'0px 0' is invalid]
    expected: FAIL

  [syntax:'Foo | bar', initialValue:'foo' is invalid]
    expected: FAIL

  [syntax:'<length> <length> <length>', initialValue:'0px 0px 0px' is invalid]
    expected: FAIL

  [syntax:'foo bar', initialValue:'foo bar' is invalid]
    expected: FAIL

  [syntax:'foo foo foo', initialValue:'foo foo foo' is invalid]
    expected: FAIL

  [syntax:'foo \\1F914 bar', initialValue:'foo \\1F914 bar' is invalid]
    expected: FAIL

  [syntax:'<percentage> | <length>+', initialValue:'calc(100vh - 10px) 30px' is valid]
    expected: FAIL

  [syntax:'<length>', initialValue:'10vmin' is valid]
    expected: FAIL

  [syntax:'<custom-ident>+', initialValue:'foo revert-layer bar' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'revert-layer' is invalid]
    expected: FAIL

  [syntax:'<custom-ident>', initialValue:'revert-layer' is invalid]
    expected: FAIL

  [syntax:'revert-layer', initialValue:'revert-layer' is invalid]
    expected: FAIL

  [syntax:'*', initialValue:'default' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1% 1%' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1px 1%' is invalid]
    expected: FAIL

  [syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<color># | yellow', initialValue:'yellow, blue' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1 1%' is invalid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1% 1' is invalid]
    expected: FAIL

  [syntax:'<transform-list> | <transform-function># ', initialValue:'scale(2), rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<color># | <color>+', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1 1' is valid]
    expected: FAIL

  [syntax:'<transform-function> | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<color>+ | yellow', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1% 1px' is invalid]
    expected: FAIL

  [syntax:'<color>+ | <color>', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'yellow', initialValue:'yellow' is valid]
    expected: FAIL

  [syntax:'<transform-list> | <transform-function>+ ', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<transform-function>+ | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1%' is valid]
    expected: FAIL

  [syntax:'<color> | <color>#', initialValue:'yellow, blue' is valid]
    expected: FAIL

  [syntax:'yellow | <color>+', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1 1px' is invalid]
    expected: FAIL

  [syntax:'<color>+', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'<transform-function># | <transform-list>', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1px' is valid]
    expected: FAIL

  [syntax:'<color>+ | <color>#', initialValue:'yellow, blue' is valid]
    expected: FAIL

  [syntax:'yellow | <color>#', initialValue:'yellow, blue' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1px 1px' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1' is valid]
    expected: FAIL

  [syntax:'<transform-list> | <transform-function> ', initialValue:'scale(2) rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<color># | <color>', initialValue:'yellow, blue' is valid]
    expected: FAIL

  [syntax:'<transform-function># | <transform-list>', initialValue:'scale(2), rotate(90deg)' is valid]
    expected: FAIL

  [syntax:'<integer>+ | <percentage>+ | <length>+ ', initialValue:'1px 1' is invalid]
    expected: FAIL

  [syntax:'<color> | <color>+', initialValue:'yellow blue' is valid]
    expected: FAIL

  [syntax:'<number>', initialValue:'calc(1 / 2)' is valid]
    expected: FAIL