public void TrueForAllTest()
{
var a = new[] { new EClass(1), new EClass(2), new EClass(3) };
var l = new EventedList <EClass>(a);
Assert.That(l.TrueForAll(e => e.Prop > 1), Is.False);
Assert.That(l.TrueForAll(e => e.Prop > 0), Is.True);
}