public void AliveItemsToList_ShouldReturnAllAliveItems()
{
var list = new object[] { new object(), new object(), new object() };
var wrc = new WeakReferenceCollection <object>();
var obj1 = new object();
wrc.Add(obj1);
foreach (object obj in list)
{
wrc.Add(obj);
}
var obj2 = new object();
wrc.Add(obj2);
Assert.AreEqual(list.Length + 2, wrc.AliveItemsToList().Count, "Should have same number of items!");
obj1 = obj2 = null;
GC.Collect();
GC.WaitForPendingFinalizers();
var aliveItems = wrc.AliveItemsToList();
Assert.AreEqual(list.Length, aliveItems.Count, "Should have 2 less items!");
Assert.AreEqual(list[0], aliveItems[0]);
Assert.AreEqual(list[1], aliveItems[1]);
Assert.AreEqual(list[2], aliveItems[2]);
}
public void AliveItemsToList_ShouldReturnAllItems()
{
var list = new object[] { new object(), new object(), new object() };
var wrc = new WeakReferenceCollection <object>();
foreach (object obj in list)
{
wrc.Add(obj);
}
Assert.AreEqual(list.Length, wrc.AliveItemsToList().Count, "Should have same number of items!");
}
public void Remove_ObjectShouldGetRemoved()
{
var obj = new object();
var wrc = new WeakReferenceCollection <object>();
wrc.Add(obj);
Assert.AreEqual(1, wrc.AliveItemsToList().Count, "Should have 1 item!");
wrc.Remove(obj);
Assert.AreEqual(0, wrc.AliveItemsToList().Count, "Should have 0 item!");
}
public void Add_ObjectShouldGetCollected()
{
var obj = new object();
var wrc = new WeakReferenceCollection <object>();
wrc.Add(obj);
var wr = new WeakReference(obj);
obj = null;
Assert.IsNotNull(wr.Target, "Object should NOT have been collected yet!");
GC.Collect();
GC.WaitForPendingFinalizers();
Assert.IsNull(wr.Target, "Object should have been collected!");
GC.KeepAlive(wrc);
}
public void AliveItemsToList_ShouldReturnEmpty()
{
var wrc = new WeakReferenceCollection <object>();
Assert.AreEqual(0, wrc.AliveItemsToList().Count, "Should have 0 items!");
}
