[Test()] public void TestRemoveItem()
{
var ratings = new RatingsProxy(CreateRatings(), Enumerable.Range(0, 8).ToList());
Assert.AreEqual(8, ratings.Count);
Assert.AreEqual(0.2f, ratings[2, 4]);
Assert.AreEqual(2, ratings.ByUser[1].Count);
Assert.AreEqual(3, ratings.ByUser[2].Count);
Assert.AreEqual(2, ratings.ByUser[3].Count);
Assert.AreEqual(2, ratings.CountByUser[1]);
Assert.AreEqual(3, ratings.CountByUser[2]);
Assert.AreEqual(2, ratings.CountByUser[3]);
ratings.RemoveItem(4);
Assert.AreEqual(6, ratings.Count);
Assert.AreEqual(1, ratings.ByUser[1].Count);
Assert.AreEqual(2, ratings.ByUser[2].Count);
Assert.AreEqual(1, ratings.CountByUser[1]);
Assert.AreEqual(2, ratings.CountByUser[2]);
float r;
Assert.IsFalse(ratings.TryGet(1, 4, out r));
Assert.IsFalse(ratings.TryGet(2, 4, out r));
Assert.IsFalse(ratings.TryGet(3, 4, out r));
}
[Test()] public void TestRemoveAt()
{
var ratings = new RatingsProxy(CreateRatings(), Enumerable.Range(0, 8).ToList());
Assert.AreEqual(8, ratings.Count);
Assert.AreEqual(0.4f, ratings[2, 5]);
Assert.AreEqual(3, ratings.ByUser[2].Count);
Assert.AreEqual(1, ratings.ByUser[6].Count);
Assert.AreEqual(2, ratings.ByItem[3].Count);
Assert.AreEqual(1, ratings.ByItem[5].Count);
Assert.AreEqual(3, ratings.CountByUser[2]);
Assert.AreEqual(1, ratings.CountByUser[6]);
Assert.AreEqual(2, ratings.CountByItem[3]);
Assert.AreEqual(1, ratings.CountByItem[5]);
ratings.RemoveAt(ratings.GetIndex(2, 5));
Assert.AreEqual(7, ratings.Count);
Assert.AreEqual(2, ratings.ByUser[2].Count);
Assert.AreEqual(0, ratings.ByItem[5].Count);
Assert.AreEqual(2, ratings.CountByUser[2]);
Assert.AreEqual(0, ratings.CountByItem[5]);
ratings.RemoveAt(ratings.GetIndex(6, 3));
Assert.AreEqual(6, ratings.Count);
Assert.AreEqual(0, ratings.ByUser[6].Count);
Assert.AreEqual(1, ratings.ByItem[3].Count);
Assert.AreEqual(0, ratings.CountByUser[6]);
Assert.AreEqual(1, ratings.CountByItem[3]);
float r;
Assert.IsFalse(ratings.TryGet(2, 5, out r));
}
[Test()] public void TestRemoveUser()
{
var ratings = new RatingsProxy(CreateRatings(), Enumerable.Range(0, 8).ToList());
Assert.AreEqual(8, ratings.Count);
Assert.AreEqual(0.4f, ratings[2, 5]);
Assert.AreEqual(1, ratings.ByItem[2].Count);
Assert.AreEqual(2, ratings.ByItem[4].Count);
Assert.AreEqual(1, ratings.ByItem[5].Count);
Assert.AreEqual(1, ratings.CountByItem[2]);
Assert.AreEqual(2, ratings.CountByItem[4]);
Assert.AreEqual(1, ratings.CountByItem[5]);
ratings.RemoveUser(2);
Assert.AreEqual(5, ratings.Count);
Assert.AreEqual(0, ratings.ByItem[2].Count);
Assert.AreEqual(1, ratings.ByItem[4].Count);
Assert.AreEqual(0, ratings.ByItem[5].Count);
Assert.AreEqual(0, ratings.CountByItem[2]);
Assert.AreEqual(1, ratings.CountByItem[4]);
Assert.AreEqual(0, ratings.CountByItem[5]);
float rating;
Assert.IsFalse(ratings.TryGet(2, 5, out rating));
Assert.IsFalse(ratings.TryGet(2, 4, out rating));
Assert.IsFalse(ratings.TryGet(2, 2, out rating));
}
