public void RemoveRangeTest()
{
var a = new[] { new EClass(1), new EClass(2), new EClass(3) };
var l = new EventedList <EClass>(a);
l.RemoveRange(0, 2);
Assert.That(l.Count, Is.EqualTo(1));
Assert.That(l[0].Prop, Is.EqualTo(3));
}