public void Remove()
{
var valueCollected = new booleanWrapper();
var keyCollected = new booleanWrapper();
var dict = new WeakReferenceDictionary <VisiblyGarbageCollectedObject, VisiblyGarbageCollectedObject>(ReferenceEqualityComparer.Instance);
addKeyAndValueWrappersToDict();
GC.Collect(); // collects the key
dict.Clean(); // removes the last reference to the value
waitForGC();
Assert.IsTrue(keyCollected);
Assert.IsFalse(valueCollected);
GC.Collect(); // collects the value
waitForGC();
Assert.IsTrue(valueCollected);
void addKeyAndValueWrappersToDict()
{
dict.Add(VisiblyGarbageCollectedObject.Create(keyCollected), VisiblyGarbageCollectedObject.Create(valueCollected));
}
}
public static VisiblyGarbageCollectedObject Create(booleanWrapper flag)
{
return(new VisiblyGarbageCollectedObject(() => flag.Value = true));
}