public void WritePhoneContact()
        {
            string       exceptionMes = string.Empty;
            Contact      phoneContact = new PhoneContact();
            Contact      standard     = new PhoneContact("Yuriy", "5432167890");
            StreamWriter streamWriter = new StreamWriter("../../PhoneContactOutput.txt");

            try
            {
                standard.Write(streamWriter);
                streamWriter.Close();
                streamWriter.Dispose();

                StreamReader streamReader = new StreamReader("../../PhoneContactOutput.txt");
                phoneContact.Read(streamReader);
                streamReader.Close();
                streamReader.Dispose();
            }
            catch (ArgumentException mes)
            {
                exceptionMes = mes.Message;
            }

            Assert.AreEqual(phoneContact.Name, standard.Name);
            Assert.AreEqual(phoneContact.Data, standard.Data);
            Assert.AreEqual(exceptionMes, string.Empty);
        }
        public void ReadPhoneContact()
        {
            string       exceptionMes = string.Empty;
            Contact      phoneContact = new PhoneContact();
            Contact      standard     = new PhoneContact("Zakalic", "1029384756");
            StreamReader stream       = new StreamReader("../../PhoneContactInput.txt");

            try
            {
                phoneContact.Read(stream);
                stream.Close();
                stream.Dispose();
            }
            catch (ArgumentException mes)
            {
                exceptionMes = mes.Message;
            }

            Assert.AreEqual(phoneContact.Name, standard.Name);
            Assert.AreEqual(phoneContact.Data, standard.Data);
            Assert.AreEqual(exceptionMes, string.Empty);
        }