public void Test()
{
var customerValidator = new CustomerValidator();
var customer = new Customer();
customer.Address = new Address {
AddressLine1 = "pppppp"
};
customerValidator.ShouldHaveChildValidator(c => c.Address, typeof(AddressValidator));
// Assert.AreEqual(, "Address can not be null");
}
public void CustomerValidator_WhenAddressPostCodeIsNull_ShouldHaveChildValidator()
{
validator.ShouldHaveChildValidator(customer => customer.Address, typeof(AddressValidator));
}