-t directory Top level directory of project (default to
start directory)
-The -s, -p, & -t options can be passed in as positional arguments. The
-following two command lines are equivalent::
+The :option:`-s`, :option:`-p`, and :option:`-t` options can be passed in
+as positional arguments in that order. The following two command lines
+are equivalent::
python -m unittest discover -s project_directory -p '*_test.py'
python -m unittest discover project_directory '*_test.py'