\section{Functional test cases}

\begin{tabular}{|p{3cm}|p{6cm}|p{6cm}|}
    \hline 
    Title  &  Input (\LaTeX) & Output \\
    \hline

    empty file &
    \begin{lstlisting}

    \end{lstlisting}&
    \begin{lstlisting}
Error! expected \documentclass at the begining of LaTeX file 
    \end{lstlisting} \\
    \hline

    Document class &
    \begin{lstlisting}
\documentclass[options]{class}
    \end{lstlisting}&
    \begin{lstlisting}
Error! expected \begin{document} after document class
    \end{lstlisting} \\
    \hline

    \begin{lstlisting}
Extra text between document class and begin document
    \end{lstlisting}&
    \begin{lstlisting}
\documentclass[options]{class}
"extra text"
\begin{document}
    \end{lstlisting}&
    \begin{lstlisting}
Error! unexpected text between document class and begin document
    \end{lstlisting}  \\
    \hline 

\begin{lstlisting}
Just document class and begin document
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
\end{lstlisting}&
\begin{lstlisting}
Error! no \end{document} at the end of LaTeX code
\end{lstlisting}  \\
\hline 

    \end{tabular} 

\begin{tabular}{|p{3cm}|p{6cm}|p{6cm}|}
\hline 
Title  &  Input (\LaTeX) & Output \\
\hline

\begin{lstlisting}
Just document class and begin/end document
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
<html>
</html>
\end{lstlisting}  \\
\hline 

\begin{lstlisting}
Plain text inside
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
Lorem ipsum dolor sit amet.
\end{document}
\end{lstlisting}&
\begin{lstlisting}
<html>
Lorem ipsum dolor sit amet.
</html>
\end{lstlisting}  \\
\hline 

\begin{lstlisting}
Reduntant \end{document} (ignored)
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
Lorem ipsum dolor sit amet.
\end{document}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
<html>
Lorem ipsum dolor sit amet.
</html>
\end{lstlisting}  \\
\hline 

\begin{lstlisting}
LaTeX comments
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
Lorem ipsum dolor sit amet.
% some comment
\end{document}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
Error! LaTeX comment detected at line 3
\end{lstlisting}  \\
\hline 



\end{tabular}

\begin{tabular}{|p{3cm}|p{6cm}|p{6cm}|}
    \hline
Title  &  Input (\LaTeX) & Output \\
\hline

\begin{lstlisting}
Table with vertical lines
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
\begin{tabular}{ l | c | r }
test & 2 & test \\
4 & 5 & 6 \\
\end{tabular}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
<html>
<table>
<tr>
<td align='left'>test</td>
<td align='center' style="border-left: 1px solid black;">2</td>
<td align='right'>test</td>
</tr>
<tr>
<td align='left'>4</td>
<td align='center' style="border-left: 1px solid black;">5</td>
<td align='right'>6</td>
</tr>
</table>
</html>
\end{lstlisting}  \\
\hline 

\begin{lstlisting}
Missing &
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
\begin{tabular}{ l c r }
1 & 2 & 3 \\
4 & 5 6 \\
\end{tabular}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
Error! Missing third column in second row 
\end{lstlisting}  \\
\hline 

\end{tabular}

\begin{tabular}{|p{3cm}|p{6cm}|p{6cm}|}
    \hline
Title  &  Input (\LaTeX) & Output \\
\hline

\begin{lstlisting}
Too much columns
\end{lstlisting}&
\begin{lstlisting}
\documentclass[options]{class}
\begin{document}
\begin{tabular}{ l c r }
1 & 2 & 3 & 4 & 5 \\
4 & 5 6 \\
\end{tabular}
\end{document}
\end{lstlisting}&
\begin{lstlisting}
Error! Too much columns in row 1, expected 3, got 5
\end{lstlisting}  \\
\hline 

\end{tabular}