public void FailedValidationTest()
{
var customerBus = new busCustomer();
var custExisting = customerBus.Load(1);
var cust = new Customer()
{
// create dupe values which should fail validation
FirstName = custExisting.FirstName,
LastName = custExisting.LastName,
Company = custExisting.Company
};
cust = customerBus.NewEntity(cust);
Assert.IsFalse(customerBus.Validate());
Assert.IsFalse(string.IsNullOrEmpty(customerBus.ErrorMessage));
Console.WriteLine("Validation Failed (test passed): " + customerBus.ErrorMessage);
}