public void AsMailboxAddress_ReturnsExpectedValue()
        {
            const string name    = "Some Body";
            const string address = "*****@*****.**";

            var emailAddress   = new EmailAddress(name, address);
            var mailboxAddress = emailAddress.AsMailboxAddress();

            mailboxAddress.Should().BeOfType <MailboxAddress>();
            mailboxAddress.Name.Should().Be(name);
            mailboxAddress.Address.Should().Be(address);
        }