\input regression-test
\documentclass{article}
\usepackage[readprov]{osgdoc}
\ReadFileInfos{fixture-classic.sty}
\begin{document}
\START
\makeatletter
\@ifpackageloaded{readprov}
  {\TYPE{readprov-loaded=true}}
  {\TYPE{readprov-loaded=false}}
\makeatother
\edef\ReadprovVersion{\UseVersionOf{fixture-classic.sty}}
\edef\ReadprovDate{\UseDateOf{fixture-classic.sty}}
\TYPE{readprov-version=\ReadprovVersion}
\TYPE{readprov-date=\ReadprovDate}
\END
\end{document}