public void AddingRemovingItemsAdjustsCount()
{
var list = new SubscriptionItemCollection();
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b0" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b1" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b2" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b3" });
Assert.AreEqual(4, list.Count);
list.Remove("a/b0");
Assert.AreEqual(3, list.Count);
list.Remove("a/b2");
Assert.AreEqual(2, list.Count);
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b4" });
Assert.AreEqual(3, list.Count);
list.Remove("a/b4");
Assert.AreEqual(2, list.Count);
}
public void CanRemoveLastItemInList()
{
var list = new SubscriptionItemCollection();
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b0" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b1" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b2" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b3" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b4" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b5" });
list.Remove("a/b0");
list.Remove("a/b1");
list.Remove("a/b2");
list.Remove("a/b3");
list.Remove("a/b4");
Assert.AreEqual(1, list.Count);
list.Remove("a/b5");
Assert.AreEqual(0, list.Count);
}
public void CanRetrieveIndexOfPreviouslyAddedItemsAfterRemovalOfItems()
{
var list = new SubscriptionItemCollection();
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b0" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b1" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b2" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b3" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b4" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b5" });
list.Add(new SubscriptionItem() { QualityOfService = QualityOfService.AtLeastOnce, TopicName = "a/b6" });
list.Remove("a/b0");
list.Remove("a/b2");
list.Remove("a/b4");
list.Remove("a/b6");
Assert.AreEqual(0, list.IndexOf("a/b1"));
Assert.AreEqual(1, list.IndexOf("a/b3"));
Assert.AreEqual(2, list.IndexOf("a/b5"));
}
