public void CanEnumerateListWhileSomethingChangesIt()
{
var list = new SlowImmutableList<int>(new[] { 1, 2, 3, 4 });
var enumerator = list.GetEnumerator();
enumerator.MoveNext().ShouldBe(true);
var list2 = list.Add(1);
Should.NotThrow(() => enumerator.MoveNext().ShouldBe(true));
}
public void AddDoesNotAffectOriginalList()
{
var list = new SlowImmutableList<int>();
var list2 = list.Add(1);
list2.Count.ShouldBe(1);
list2.ShouldContain(1);
list.Count.ShouldBe(0);
list.ShouldNotContain(1);
}
