public void EnqueueWhenHasOne()
{
var queue = new ObservableFixedSizeQueue <int>(2);
queue.Enqueue(1);
var actual = queue.SubscribeAll();
queue.Enqueue(2);
CollectionAssert.AreEqual(new[] { 1, 2 }, queue);
var expected = CreateAddEventArgsCollection(2, 1);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
public void EnqueueTrimsOverflowAndNotifies()
{
var queue = new ObservableFixedSizeQueue <int>(2);
queue.Enqueue(1);
queue.Enqueue(2);
using var actual = queue.SubscribeAll();
queue.Enqueue(3);
CollectionAssert.AreEqual(new[] { 2, 3 }, queue);
var expected = new EventArgs[]
{
Diff.CreateRemoveEventArgs(1, 0),
Diff.CreateAddEventArgs(3, 1),
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}