public void IsValueType_Test()
{
var obj1 = 12;
Assert.IsTrue(obj1.IsValueType());
var obj2 = "";
Assert.IsFalse(obj2.IsValueType());
var obj3 = new MyClass();
Assert.IsFalse(obj3.IsValueType());
var obj4 = new MyStruct();
Assert.IsTrue(obj4.IsValueType());
var obj5 = new DateTime();
Assert.IsTrue(obj5.IsValueType());
}