public void MustNotHaveInvalidZip(string invalidZip)
 {
     // Then
     Assert.Throws <DomainException>(() =>
                                     MemberAddressBuilder.New().WithZip(invalidZip).Build())
     .WithMessage(MemberAddressValidation.ZipIsInvalid);
 }
 public MemberAddressTest()
 {
     _memberAddress = MemberAddressBuilder.New().Build();
 }