public void Deep_Clone_Ref_Properties()
{
var test1 = new Test1 {
MyTest1 = new Test1(), MyTest2 = new Test2()
};
var clone = (Test1)test1.DeepClone();
Assert.AreNotSame(test1, clone);
Assert.AreNotSame(test1.MyTest1, clone.MyTest1);
Assert.AreSame(test1.MyTest2, clone.MyTest2);
}