public void GPhotoTimestampConstructorTest()
        {
            string initValue = "TestValue"; 
            GPhotoTimestamp target = new GPhotoTimestamp(initValue);
            Assert.AreEqual(initValue, target.Value);

        }
 public void GPhotoTimestampConstructorTest1()
 {
     GPhotoTimestamp target = new GPhotoTimestamp();
     Assert.IsNotNull(target);
     Assert.IsTrue(String.IsNullOrEmpty(target.Value));
 }