\input regression-test.tex
\documentclass{article}
\usepackage{tikzphysics}
\makeatletter
\begin{document}
\START
\hbadness=10000
\@for\Feature:=\tikzphysics@reference@nodes\do{%
  \setbox0=\hbox{\begin{tikzpicture}
    \node[\Feature,show anchors,show keys] (N) {};
    \edef\Logical{\csname tikzphysics@reference@lookup@\Feature\endcsname}
    \edef\Families{\csname tikzphysics@reference@families@\Logical\endcsname}
    \@for\Family:=\Families\do{%
      \pgf@process{\pgfpointanchor{N}{\Family-0}}%
      \pgf@process{\pgfpointanchor{N}{\Family-50}}%
      \pgf@process{\pgfpointanchor{N}{\Family-100}}%
    }
  \end{tikzpicture}}%
  \TYPE{PASS: \Feature\space named anchors and family endpoints}
}
\@for\Feature:=\tikzphysics@reference@features\do{%
  \setbox0=\hbox{\begin{tikzpicture}\physicshelp{\Feature}\end{tikzpicture}}%
  \TYPE{PASS: \Feature\space reference card}
}
\setbox0=\hbox{\begin{tikzpicture}\physicshelp{index}\end{tikzpicture}}
\TYPE{PASS: feature index}
\setbox0=\hbox{\begin{tikzpicture}
  \node[wedge,show anchors,physics debug/anchor list={},
    physics debug/anchor families=all,
    physics debug/anchor samples={0,25,...,100}] (W) {};
\end{tikzpicture}}
\TYPE{PASS: all anchor families with native sample range}
% Every registered node must actually invoke both overlays, not just have
% reference entries and queryable anchors.
\newcount\ExpectedNodeOverlays
\newcount\ActualAnchorOverlays
\newcount\ActualKeyOverlays
\def\tikzphysics@debug@drawanchors#1{\global\advance\ActualAnchorOverlays by1}
\def\tikzphysics@debug@drawkeys#1{\global\advance\ActualKeyOverlays by1}
\@for\Feature:=\tikzphysics@reference@nodes\do{%
  \global\advance\ExpectedNodeOverlays by1
  \setbox0=\hbox{\begin{tikzpicture}
    \node[\Feature,show anchors,show keys] {};
  \end{tikzpicture}}%
}
\ifnum\ActualAnchorOverlays=\ExpectedNodeOverlays
  \TYPE{PASS: all registered nodes emit anchor overlays}%
\else
  \TYPE{FAIL: registered node anchor overlay count}%
\fi
\ifnum\ActualKeyOverlays=\ExpectedNodeOverlays
  \TYPE{PASS: all registered nodes emit key overlays}%
\else
  \TYPE{FAIL: registered node key overlay count}%
\fi
\END
\end{document}