public void Returns_Equal_Numbers_Of_Each_Item_When_Called_From_Multiple_Threads()
{
var sequence = new[] { 10, 20, 30 };
const int rounds = 5000;
var cut = new RoundRobin <int>(sequence);
ConcurrentBag <int> items = new ConcurrentBag <int>();
Parallel.For(
0,
sequence.Length * rounds,
(item) => { items.Add(cut.GetNextItem()); });
items.Count(i => i == 10).ShouldBe(rounds);
items.Count(i => i == 20).ShouldBe(rounds);
items.Count(i => i == 30).ShouldBe(rounds);
}
public void Returns_Repeating_Sequence_When_Called_Repeatedly()
{
var sequence = new[] { 10, 20, 30 };
var cut = new RoundRobin <int>(sequence);
cut.GetNextItem().ShouldBe(10);
cut.GetNextItem().ShouldBe(20);
cut.GetNextItem().ShouldBe(30);
cut.GetNextItem().ShouldBe(10);
cut.GetNextItem().ShouldBe(20);
cut.GetNextItem().ShouldBe(30);
}