public void TestCombiningOperations()
{
const int repsPerOp = 5;
var items = new [] { 13, 23, 14, 4, 28, 11, 3, 10, 12, 9,
5, 1, 5, 10, 13, 2, 14, 20, 26, 13, 15, 28, 13, 26, 19, 6, 2, 18, 9, 20 };
var remove = new[] { 10, 0, 15, 13, 14 };
var replace = new[] { 9, 1, 14, 26, 11 };
var list = new ObservableCollection <int>(items.Skip(2 * repsPerOp));
var distinct = new DistinctReadOnlyObservableCollection <int>(list.ListAsObservable());
for (int i = 0; i < repsPerOp; i++)
{
list.Remove(remove[i]);
list.Add(items[repsPerOp + i]);
var index = list.IndexOf(replace[i]);
if (index >= 0)
{
list[index] = items[i];
}
}
var set = new HashSet <int>(list);
Assert.IsTrue(set.SetEquals(distinct));
list.Clear();
Assert.AreEqual(0, distinct.Count);
}
public void TestCreationWithCustomComparer()
{
var items = new[] { 10, 8, 13, 2, 3, 17, 8, 3, 6, 6, 2, 5, 13, 14, 6, 13, 1, 12, 6, 17 };
var list = items.Select(i => new Person(i)).ToList();
var distinct = new DistinctReadOnlyObservableCollection <Person>(list.ListAsObservable(), new PersonEqualityComparer());
var set = new HashSet <Person>(list, new PersonEqualityComparer());
Assert.IsTrue(set.SetEquals(distinct));
}
public void TestCreation()
{
var items = new[] { 8, 2, 10, 14, 15, 4, 10, 18, 12, 6, 6, 1, 10, 13, 14, 16, 14, 17, 18, 4 };
var list = items.ListAsObservable();
var distinct = new DistinctReadOnlyObservableCollection <int>(list);
var set = new HashSet <int>(items);
Assert.IsTrue(set.SetEquals(distinct));
}
public void TestAddingItems()
{
var items = new[] { 24, 9, 18, 8, 5, 2, 12, 23, 11, 1, 23, 2, 16, 1, 8, 28, 16, 3, 1, 29, 14, 7, 8, 1, 14, 3, 5, 15, 20, 8 };
var list = new ObservableCollection <int>(items.Take(10));
var distinct = new DistinctReadOnlyObservableCollection <int>(list.ListAsObservable());
foreach (var item in items.Skip(10))
{
list.Add(item);
}
var set = new HashSet <int>(items);
Assert.IsTrue(set.SetEquals(distinct));
}
public void TestRemovingItems()
{
var items = new[] { 3, 13, 1, 7, 1, 13, 19, 11, 7, 0, 14, 11, 15, 16, 10, 15, 9, 0, 17, 1 };
var remove = new[] { 9, 7, 6, 11, 9 };
var list = new ObservableCollection <int>(items);
var distinct = new DistinctReadOnlyObservableCollection <int>(list.ListAsObservable());
foreach (var item in remove)
{
list.Remove(item);
}
var set = new HashSet <int>(list);
Assert.IsTrue(set.SetEquals(distinct));
}
public void TestReplacingItems()
{
var items = new [] { 16, 0, 16, 23, 2, 26, 27, 3, 2, 26, 2, 0, 4, 28, 18, 28, 28, 22, 1, 7, 27, 14, 13, 16, 20, 20, 5, 18, 17, 24 };
var replace = new [] { 24, 13, 21, 28, 12 };
var list = new ObservableCollection <int>(items.Skip(replace.Length));
var distinct = new DistinctReadOnlyObservableCollection <int>(list.ListAsObservable());
for (int i = 0; i < replace.Length; i++)
{
var index = list.IndexOf(replace[i]);
if (index >= 0)
{
list[index] = items[i];
}
}
var set = new HashSet <int>(list);
Assert.IsTrue(set.SetEquals(distinct));
}
