"""
Unit test for the module name

This module illustrates what a unit test should look like. It is testing a
single function in the module name, and therefore has a single test procedure.

It also has a segment of "script code" that invokes the test procedure when
this module is run as an script.

Author: Walker M. White
Date:   August 31, 2017 (Python 3 Version)
"""
import introcs          # cornell assert functions
import name             # function to be tested


def test_last_name_first():
    """
    Test procedure for last_name_first(n)
    """
    print('Testing last_name_first')

    # Test case 1
    result = name.last_name_first('Walker White')
    introcs.assert_equals('White, Walker',result)
    
    # Test case 2
    result = name.last_name_first('Walker     White')
    introcs.assert_equals('White, Walker',result)


# Script code
test_last_name_first()
print('Module name is working correctly')