\input{start-test.tex}
\title{Test file}
\maketitle

\section{Test Section 1}

Lots of text, followed by an equation:

\begin{equation}
  \label{eq:1}
  c^2 = a^2 +b^2
\end{equation}

More text, with another equation:

\begin{equation}
  \label{eq:2}
  1+1=2
\end{equation}

\input{end-test.tex}