/usr/lib/pd/extra/testtools/testtools-meta.pd is in pd-testtools 0.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | #N canvas 546 104 450 300 10;
#N canvas 0 22 450 300 META 1;
#X text 30 61 VERSION 0.1;
#X text 30 91 AUTHOR Katja Vetter and Fred Jan Kraan katjavetter@gmail.com
;
#X text 30 28 NAME testtools;
#X restore 56 56 pd META;
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