def METHOD_NAME(self):
    email = Email.objects.create(name="E-mail", subject="Hello", template="World")
    test = AutonomousSystemEmailForm(
        data={
            "email": email.pk,
            "recipient": ["test@example.net"],
            "cc": ["test@example.com", "null@example.org"],
            "subject": "Hello",
            "body": "World",
        }
    )
    test.fields["recipient"].choices = [("test@example.net", "My Email")]
    test.fields["cc"].choices = [
        ("test@example.com", "Contact #1"),
        ("null@example.org", "Contact #2"),
    ]
    self.assertTrue(test.is_valid())