texmath-0.12.5: test/writer/tex/mfracSinheritance14.test

<<< native
[ EFraction
    NormalFrac
    (EFraction
       NormalFrac
       (ENumber "1")
       (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ]))
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
, EFraction
    NormalFrac
    (ENumber "1")
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
, EFraction
    NormalFrac
    (EFraction
       NormalFrac
       (ENumber "1")
       (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ]))
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
]
>>> tex
\frac{\frac{1}{y + 3}}{y + 3}\frac{1}{y + 3}\frac{\frac{1}{y + 3}}{y + 3}