\documentclass{article}
\usepackage[QX]{fontenc}
\usepackage[latin2]{inputenc}
\usepackage{lmodern}

\newcommand*{\tekst}{Zażółć gęślą jaźń.}
\makeatletter
\newcommand*{\test}[3]{{%
  #1\fontseries{#2}\fontshape{#3}\selectfont
  \edef\opis{\f@encoding/\f@family/\f@series/\f@shape/\f@size:}%
  \noindent\hbox to3.5cm{\small\usefont{OT1}{cmtt}{m}{n}\opis\hfil}%
  \tekst\par
}}

\newcommand*{\testsize}{%
  \test{\rmfamily}{m}{n}
  \test{\rmfamily}{m}{sl}
  \test{\rmfamily}{m}{it}
  \test{\rmfamily}{m}{sc}
  \test{\rmfamily}{m}{scsl}
  \test{\rmfamily}{b}{n}
  \test{\rmfamily}{b}{sl}
  \test{\rmfamily}{bx}{n}
  \test{\rmfamily}{bx}{it}
  \test{\rmfamily}{bx}{sl}
  \test{\sffamily}{m}{n}
%  \test{\sffamily}{m}{it}
  \test{\sffamily}{m}{sl}
%  \test{\sffamily}{m}{sc}
  \test{\sffamily}{sbc}{n}
%  \test{\sffamily}{sbc}{it}
  \test{\sffamily}{sbc}{sl}
  \test{\sffamily}{bx}{n}
%  \test{\sffamily}{bx}{it}
  \test{\sffamily}{bx}{sl}
  \test{\ttfamily}{m}{n}
  \test{\ttfamily}{m}{it}
  \test{\ttfamily}{m}{sl}
  \test{\ttfamily}{m}{sc}
% \test{\ttfamily}{bx}{n}
% \test{\ttfamily}{bx}{it}
% \test{\ttfamily}{bx}{sl}
% \test{\ttfamily}{bx}{sc}
  \test{\fontfamily{lmvtt}}{m}{n}
  \test{\fontfamily{lmvtt}}{m}{sl}
  \test{\fontfamily{lmssq}}{m}{n}
  \test{\fontfamily{lmssq}}{m}{sl}
  \test{\fontfamily{lmssq}}{bx}{n}
  \test{\fontfamily{lmssq}}{bx}{sl}
  \medskip
}


\begin{document}

\tiny\testsize
\scriptsize\testsize
\footnotesize\testsize
\small\testsize
\normalsize\testsize
\large\testsize
\Large\testsize
\LARGE\testsize
\huge\testsize
\Huge\testsize

\end{document}

%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 
