public void TestTrackableCollection_LastOrDefault(bool track)
{
var acc = new Accumulator("test");
var a = new Simple("a");
var b = new Simple("b");
var c = new Simple("c");
var coll = new TrackableCollection <Simple>(acc, track)
{
a, b, c, b, c, b, b
};
var last = coll.LastOrDefault();
Assert.AreEqual(b, last);
coll.Clear();
last = coll.LastOrDefault();
Assert.IsNull(last);
var coll2 = new TrackableCollection <int>(acc, track)
{
-1, 1, 2
};
var f = coll2.LastOrDefault();
Assert.AreEqual(2, f);
coll2.Clear();
f = coll2.LastOrDefault();
Assert.AreEqual(default(int), f);
if (track)
{
Assert.AreEqual(12, acc.Records.Count);
}
else
{
Assert.AreEqual(0, acc.Records.Count);
}
}
