public MailingBuilder AddSimpsons()
{
foreach (var person in The.Simpsons())
{
personList.Add(person);
}
return(this);
}
public bool ContainEmailsAllExcept(string email)
{
var emails = The.Simpsons().ConvertAll(x => x.Email);
emails.Remove(email);
var res = _messageList.ElementAt(elementNumber).SendTo;
return(res.ToHashSet().SetEquals(emails.ToHashSet()));
}