public void FastParallelLoop(int?maxThreads)
{
FastParallel.Loop(0, maxThreads, _ => Assert.Fail("When count is empty, no action should be called"));
foreach (var count in Enumerable.Range(1, 20))
{
var executed = new ConcurrentBag <int>();
FastParallel.Loop(count, maxThreads, index =>
{
if (executed.Contains(index))
{
Assert.Fail($"Action for index {index} has been called already.");
}
executed.Add(index);
});
var expected = Enumerable.Range(0, count).ToArray();
var actual = executed.ToArray();
Array.Sort(actual);
Assert.AreEqual(expected, actual, $"count = {count}: The set of executed actions is wrong");
}
}
// maxThreads == null should run a plain vanilla for loop.
public void FastParallelLoopErrors()
{
Assert.Throws <ArgumentException>(() => FastParallel.Loop(0, 0, i => { }));
Assert.Throws <ArgumentNullException>(() => FastParallel.Loop(0, 0, null));
}