def main():
# Loading donors data if it exists
filename = 'donors.txt'
donor_collection = DonorCollection()
msg = donor_collection.load_donor_data_from_file(filename)
IO.print_data_to_user(msg)
# Display the menu
while True:
IO.print_main_menu()
choice = IO.input_choice("Which action would you like to perform? ")
if choice == '1':
IO.send_thank_you_to_single_donor(donor_collection)
elif choice == '2':
IO.print_data_to_user(donor_collection.generate_donor_report())
elif choice == '3':
IO.print_data_to_user(donor_collection.generate_letter_to_all_donors())
elif choice == '4':
if len(donor_collection.donor_list):
donor_collection.save_donor_data_to_file(filename)
IO.print_data_to_user("GoodBye!")
break
else:
IO.print_data_to_user("Your selection is invalid. Please select a menu option from 1 to 4")
def test_save_donor_data_to_file(self):
donor1 = Donor("jeff bezos", [200000])
donor2 = Donor("Bill Gates", [150000])
dc = DonorCollection([donor1, donor2])
with mock.patch("builtins.open", mock.mock_open()) as mock_open:
dc.save_donor_data_to_file('donors.txt')
mock_open.assert_called_with('donors.txt', 'w+')
call_1 = mock.call('Jeff Bezos;200000\n')
call_2 = mock.call('Bill Gates;150000\n')
calls = [call_1, call_2]
mock_open().write.assert_has_calls(calls)
