public void SetItems_ToEmpty()
{
var array = new[] { 1, 2, 3, 4, 5 };
var coll = new ObservableCollectionEx <int>();
coll.SetItems(array);
coll.SetItems(new int[] { });
Assert.AreEqual(0, coll.Count);
}
public void SetItems_SameItems()
{
var array = new[] { 1, 2, 3, 4, 5 };
var coll = new ObservableCollectionEx <int>();
coll.SetItems(array);
coll.SetItems(array);
Assert.AreEqual(array.Length, coll.Count);
for (int n = 0; n < array.Length; n++)
{
Assert.AreEqual(array[n], coll[n]);
}
}
public void SetItems_DifferentItems()
{
var array1 = new[] { 1, 2, 3, 4, 5 };
var array2 = new[] { 9, 8, 7 };
var coll = new ObservableCollectionEx <int>();
coll.SetItems(array1);
coll.SetItems(array2);
Assert.AreEqual(array2.Length, coll.Count);
for (int n = 0; n < array2.Length; n++)
{
Assert.AreEqual(array2[n], coll[n]);
}
}
public void SetItems_FiresCollectionChanged()
{
var coll = new ObservableCollectionEx <int>();
bool fired = false;
coll.CollectionChanged += (s, e) =>
{
fired = true;
};
coll.SetItems(new[] { 1, 2, 3 });
Assert.IsTrue(fired);
}