[Test] public void ForEachCallsActionWithEachItem()
{
var sut = new CopyOnWriteList <T>(Samples);
var all = new List <T>(SampleSize);
sut.ForEach(all.Add);
CollectionAssert.AreEqual(sut, all);
}
[Test] public void ForEachChokesOnNullAction()
{
var sut = new CopyOnWriteList <T>();
Assert.Catch <ArgumentNullException>(() => sut.ForEach(null));
}