# create a dictionary that represents a person
def createPerson(firstName,lastName,yearOfBirth):
    """
    This function takes in the various attributes for a person and returns a dictionary with keys for first name, last name and year of birth with their respective values equal to whatever was passed to this function.
    """
    record = {'firstName':firstName, 'lastName':lastName, 'yearOfBirth':yearOfBirth}
    return record

def getFirstName(person):
    """ function that returns the first name of a person """
    return person['firstName']

def getLastName(person):
    """ function that returns the last name of a person """
    return person['lastName']

def getYearOfBirth(person):
    """ function that returns the year of birth of a person """
    return person['yearOfBirth']

# create an instance that represents a person named John Doe
john = createPerson("John", "Doe", 1945)

############### tests ###################

# tests for persons defined in a non-OO manner
import unittest

class PersonTests(unittest.TestCase):
    def setUp(self):
        #create an instance that represents a person named John Doe
        self.john = createPerson("John", "Doe", 1945)

        #create an instance of elvis presley
        self.elvis = createPerson("Elvis", "Presley", 1935)

    def test_firstname(self):
        self.assertEquals("John", getFirstName(self.john))
        self.assertEquals("Elvis", getFirstName(self.elvis))

    def test_lastname(self):
        self.assertEquals("Doe", getLastName(self.john))
        self.assertEquals("Presley", getLastName(self.elvis))

    def test_yearofbirth(self):
        self.assertEquals(1945, getYearOfBirth(self.john))
        self.assertEquals(1935, getYearOfBirth(self.elvis))

suite = unittest.TestLoader().loadTestsFromTestCase(PersonTests)
unittest.TextTestRunner(verbosity=2).run(suite)