public void IndirectComputedObjectCanBeGarbageCollected()
{
GC.Collect();
SourceData observable = new SourceData();
DirectComputed intermediate = new DirectComputed(observable);
IndirectComputed indirectComputed = new IndirectComputed(intermediate);
observable.SourceProperty = 42;
Assert.AreEqual(42, indirectComputed.ComputedProperty);
WeakReference weakIndirectComputed = new WeakReference(indirectComputed);
GC.Collect();
Assert.IsTrue(weakIndirectComputed.IsAlive, "Since we hold a strong reference to the dependent, the object should still be alive.");
// This assertion here to make sure the dependent is not optimized away.
Assert.AreEqual(42, indirectComputed.ComputedProperty);
indirectComputed = null;
GC.Collect();
Assert.IsFalse(weakIndirectComputed.IsAlive, "Since we released the strong reference to the dependent, the object should not be alive.");
// Make sure we can still modify the observable, and that the intermediate still depends upon it.
observable.SourceProperty = 32;
Assert.AreEqual(32, observable.SourceProperty);
Assert.AreEqual(32, intermediate.ComputedProperty);
}
public void Initialize()
{
_source = new SourceData();
_intermediateComputed = new DirectComputed(_source);
_computed = new IndirectComputed(_intermediateComputed);
}
public void IndirectComputedObjectCanBeGarbageCollected()
{
GC.Collect();
SourceData observable = new SourceData();
DirectComputed intermediate = new DirectComputed(observable);
IndirectComputed indirectComputed = new IndirectComputed(intermediate);
observable.SourceProperty = 42;
Assert.AreEqual(42, indirectComputed.ComputedProperty);
WeakReference weakIndirectComputed = new WeakReference(indirectComputed);
GC.Collect();
Assert.IsTrue(weakIndirectComputed.IsAlive, "Since we hold a strong reference to the dependent, the object should still be alive.");
// This assertion here to make sure the dependent is not optimized away.
Assert.AreEqual(42, indirectComputed.ComputedProperty);
indirectComputed = null;
GC.Collect();
Assert.IsFalse(weakIndirectComputed.IsAlive, "Since we released the strong reference to the dependent, the object should not be alive.");
// Make sure we can still modify the observable, and that the intermediate still depends upon it.
observable.SourceProperty = 32;
Assert.AreEqual(32, observable.SourceProperty);
Assert.AreEqual(32, intermediate.ComputedProperty);
}
public void Initialize()
{
_source = new SourceData();
_intermediateComputed = new DirectComputed(_source);
_computed = new IndirectComputed(_intermediateComputed);
}