def test_thank_you():
a = Donor("Scrooge McDuck", 100.00)
print(a.thank_you())
assert a.thank_you() == """
Dear Scrooge McDuck,
Thank you for your most recent donation of $100.00. We are humbled by your
lifetime contribution of $100.00.
Sincerly,
Making Good Things Happen"""
a.new_donation(1000.00)
assert a.thank_you() == """
def test_thank_you_file():
a = Donor("TestSting1", 300.00)
b = Donor("Test Sting2", 300.00)
c = Donor("Test-Sting3", 300.00)
a.create_file()
b.create_file()
c.create_file()
assert os.path.isfile("teststing1.txt") == True
assert os.path.isfile("test_sting2.txt") == True
assert os.path.isfile("test-sting3.txt") == True
with open("teststing1.txt", 'r') as file:
letter = file.read()
print(letter)
print(a.thank_you())
assert letter == a.thank_you()