public void PersonSearchPhoneById()
{
string name = "maichao";
string company = "ynu";
string position = "student";
Person person = new Person {
Name = name, Company = company, Position = position
};
Pair <string, string> num1 = new Pair <string, string>("187", "cellphone");
Pair <Guid, Pair <string, string> > phone1 = new Pair <Guid, Pair <string, string> >(Guid.NewGuid(), num1);
person.AddPhone(phone1);
Pair <string, string> num2 = new Pair <string, string>("187", "cellphone");
Pair <Guid, Pair <string, string> > phone2 = new Pair <Guid, Pair <string, string> >(Guid.NewGuid(), num2);
person.AddPhone(phone2);
var phone = person.SearchPhoneById(new Guid(phone2.Key.ToString()));
Assert.IsNotNull(phone);
Assert.AreEqual(phone2.Key, phone.Key);
}