/usr/share/pyshared/brian/tests/ is in python-brian 1.3.1-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/brian/tests/__init__.py
/usr/share/pyshared/brian/tests/simpletest.py
/usr/share/pyshared/brian/tests/testcorrectness/
/usr/share/pyshared/brian/tests/testcorrectness/__init__.py
/usr/share/pyshared/brian/tests/testcorrectness/test_epsp.py
/usr/share/pyshared/brian/tests/testcorrectness/test_exponential_current.py
/usr/share/pyshared/brian/tests/testcorrectness/test_from_tutorial1c.py
/usr/share/pyshared/brian/tests/testfeatures/
/usr/share/pyshared/brian/tests/testfeatures/__init__.py
/usr/share/pyshared/brian/tests/testfeatures/test_connect.py
/usr/share/pyshared/brian/tests/testfeatures/test_propagation.py
/usr/share/pyshared/brian/tests/testinterface/
/usr/share/pyshared/brian/tests/testinterface/__init__.py
/usr/share/pyshared/brian/tests/testinterface/test_clock.py
/usr/share/pyshared/brian/tests/testinterface/test_connection.py
/usr/share/pyshared/brian/tests/testinterface/test_directcontrol.py
/usr/share/pyshared/brian/tests/testinterface/test_equations.py
/usr/share/pyshared/brian/tests/testinterface/test_inspection.py
/usr/share/pyshared/brian/tests/testinterface/test_magic.py
/usr/share/pyshared/brian/tests/testinterface/test_monitor.py
/usr/share/pyshared/brian/tests/testinterface/test_neurongroup.py
/usr/share/pyshared/brian/tests/testinterface/test_reset.py
/usr/share/pyshared/brian/tests/testinterface/test_statistics.py
/usr/share/pyshared/brian/tests/testinterface/test_threshold.py
/usr/share/pyshared/brian/tests/testinterface/test_units.py
/usr/share/pyshared/brian/tests/testinterface/test_unitsafefunctions.py
/usr/share/pyshared/brian/tests/testutils/
/usr/share/pyshared/brian/tests/testutils/__init__.py
/usr/share/pyshared/brian/tests/testutils/test_sparse.py
/usr/share/pyshared/brian/tests/testutils/test_statistics.py