def test_render_letter(self):
member = Member(last_name="St.Clair", first_name="Wes", gender="male", marital_status="married")
member.create_letter()
def test_create_letter(self, doc):
member = Member()
member.create_letter()
doc.assert_called_once_with(document="letter", result=member.result_string, context={'member': member})
doc.return_value.render.assert_called_once_with()
