/usr/share/nginx-naxsi/naxsi-ui/unit_test/ is in nginx-naxsi-ui 1.4.6-1ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/nginx-naxsi/naxsi-ui/unit_test/01_UNPREDICTABLE_NOTHING
/usr/share/nginx-naxsi/naxsi-ui/unit_test/01_UNPREDICTABLE_NOTHING.conf
/usr/share/nginx-naxsi/naxsi-ui/unit_test/01_UNPREDICTABLE_NOTHING.results
/usr/share/nginx-naxsi/naxsi-ui/unit_test/02_UNPREDICTABLE_ID
/usr/share/nginx-naxsi/naxsi-ui/unit_test/02_UNPREDICTABLE_ID.conf
/usr/share/nginx-naxsi/naxsi-ui/unit_test/02_UNPREDICTABLE_ID.results
/usr/share/nginx-naxsi/naxsi-ui/unit_test/03_UNPREDICTABLE_URL
/usr/share/nginx-naxsi/naxsi-ui/unit_test/03_UNPREDICTABLE_URL.conf
/usr/share/nginx-naxsi/naxsi-ui/unit_test/03_UNPREDICTABLE_URL.results
/usr/share/nginx-naxsi/naxsi-ui/unit_test/04_UNPREDICTABLE_ARGNAME
/usr/share/nginx-naxsi/naxsi-ui/unit_test/04_UNPREDICTABLE_ARGNAME.conf
/usr/share/nginx-naxsi/naxsi-ui/unit_test/04_UNPREDICTABLE_ARGNAME.results
/usr/share/nginx-naxsi/naxsi-ui/unit_test/gen_ut.sh
/usr/share/nginx-naxsi/naxsi-ui/unit_test/run_ut.sh