/usr/lib/R/site-library/foreach/unitTests/ is in r-cran-foreach 1.4.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/R/site-library/foreach/unitTests/combineTest.R
/usr/lib/R/site-library/foreach/unitTests/errorTest.R
/usr/lib/R/site-library/foreach/unitTests/foreachTest.R
/usr/lib/R/site-library/foreach/unitTests/iteratorTest.R
/usr/lib/R/site-library/foreach/unitTests/loadFactorTest.R
/usr/lib/R/site-library/foreach/unitTests/mergeTest.R
/usr/lib/R/site-library/foreach/unitTests/nestedTest.R
/usr/lib/R/site-library/foreach/unitTests/packagesTest.R
/usr/lib/R/site-library/foreach/unitTests/runTestSuite.sh
/usr/lib/R/site-library/foreach/unitTests/stressTest.R
/usr/lib/R/site-library/foreach/unitTests/whenTest.R