/usr/lib/python3/dist-packages/ipykernel/tests/ is in python3-ipykernel 4.5.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/ipykernel/tests/__init__.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_connect.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_embed_kernel.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_jsonutil.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_kernel.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_kernelspec.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_message_spec.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_pickleutil.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_serialize.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_start_kernel.py
/usr/lib/python3/dist-packages/ipykernel/tests/test_zmq_shell.py
/usr/lib/python3/dist-packages/ipykernel/tests/utils.py