/usr/share/installed-tests/ is in python3-dbus-tests 1.2.6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/installed-tests/dbus-python/
/usr/share/installed-tests/dbus-python/python3.6/
/usr/share/installed-tests/dbus-python/python3.6/run-test.sh.test
/usr/share/installed-tests/dbus-python/python3.6/test-client.py.test
/usr/share/installed-tests/dbus-python/python3.6/test-exception-py3.py.test
/usr/share/installed-tests/dbus-python/python3.6/test-import-repeatedly.test
/usr/share/installed-tests/dbus-python/python3.6/test-p2p.py.test
/usr/share/installed-tests/dbus-python/python3.6/test-signals.py.test
/usr/share/installed-tests/dbus-python/python3.6/test-standalone.py.test
/usr/share/installed-tests/dbus-python/python3.6/test-unusable-main-loop.py.test