/usr/lib/systemd/tests/testdata/sleep.service is in systemd-tests 237-3ubuntu10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | [Unit]
Description=Sleep for 1 minute
[Service]
Type=oneshot
ExecStart=/bin/sleep 60
|