public void IndexOfTest()
{
// Arrange
LimitedList <object> list = new LimitedList <object>(2);
var obj1 = new Object();
var obj2 = new Object();
list.Add(obj1);
list.Add(obj2);
// Act
int i1 = list.IndexOf(obj1);
int i2 = list.IndexOf(obj2);
// Assert
Assert.AreEqual(0, i1);
Assert.AreEqual(1, i2);
}