I am having some issues with Unit testing:

#undertest

def userchoice1():
    """
    grabs and validates user choice

    Initialize menu object to display menu items variable menu1 prompts for
    and stores user input while loop runs until user provides a valid input
    based upon input the method calls: either self.user_entry_data method
    or will call an instance of menu.submenu() which is a method of
    Menu class

    """
    # grab and store user input
    menu = Menu()
    menu.main()
    while True:
        menu1 = input(
                        'please choose '
                        'option a), or '
                        'option b) '
                     )
        # tests for a valid resonse
        # if user provides valid response loop will break
        if menu1.lower() not in ('a', 'b'):
            print("Not an appropriate choice.")
        else:
            break
    # based upon user input call method
    if menu1 == 'a':
        clear()
        main = Main()
        main.user_entry_data(*data_collection())
    elif menu1 == 'b':
        menu.submenu()
        sub = Main()
        sub.user_search()
#___________________________________________________
#testsuite
 def test_user_choice(self, Mockinput):
        #so I creating a sideeffect to see if 'a'
        Mockinput.side_effect =['a']
        expected_output = main.userchoice1()
        #var that will be passed to return value
        returnvalue = ('ted',
                       utilities.datetime(1999, 12, 23, 0, 0),
                       'frank',
                       utilities.timedelta(seconds=7380),
                       'somenotes'
                       )
        #trying an objectpatch to mock function with my return values
        with patch.object(main, 'main.data_collection', return_value=returnvalue, side_effect=None) as mock:
            expected_output = main.userchoice1()
            mock.assert_called_once_with(returnvalue)