% Test \testfileexistence.
% 
\ifx\undefined\eplain \input eplain\fi

\testfileexistence{tex}
\iffileexists \else
  \message{\jobname.tex does not exist, but it should.}
\fi

\testfileexistence[README]{}
\iffileexists \else
  \message{README does not exist, but it should.}
\fi

\testfileexistence[foo]{bar}
\iffileexists
  \message{foo.bar exists, but it shouldn't.}
\fi

\bye
