public void CustomerAccount_Test()
{
CustomerAccount custAccount1 = CustomerAccountsExtension.CreateCustomerAccount("Jose Guingao III", "wla lang");
CustomerAccountAddress address1 = custAccount1.AddCustomerAddress("Camaman-an", "Jose Guingao III", "0915548857", "wala lang");
CustomerAccountAddress address2 = custAccount1.AddCustomerAddress("Camaman-an2", "Jose Guingao III2", "09155488572", "wala lang2");
linkWebDB.CustomerAccounts.Add(custAccount1);
linkWebDB.CustomerAccountAddresses.Add(address1);
linkWebDB.CustomerAccountAddresses.Add(address2);
linkWebDB.SaveChanges();
Assert.AreEqual(custAccount1.GUID, linkWebDB.CustomerAccounts.FirstOrDefault().GUID);
Assert.AreEqual(address2.GUID, linkWebDB.CustomerAccounts.FirstOrDefault().CustomerAccountAddresses.ElementAt(1).GUID);
Assert.AreEqual(address1.GUID, linkWebDB.CustomerAccounts.FirstOrDefault().CustomerAccountAddresses.ElementAt(0).GUID);
}