|
public Add ( JET_CALLBACK callback ) : |
||
| callback | JET_CALLBACK | The callback to add. |
| 리턴 | ||
public void VerifyAddingSameCallbackReturnsSameWrapper()
{
JET_CALLBACK callback = CreateCallback();
var callbackWrappers = new CallbackWrappers();
var wrapper = callbackWrappers.Add(callback);
Assert.AreEqual(wrapper, callbackWrappers.Add(callback));
}
public void VerifyAddingCallbackReturnsWrapper()
{
JET_CALLBACK callback = CreateCallback();
var callbackWrappers = new CallbackWrappers();
var wrapper = callbackWrappers.Add(callback);
Assert.IsNotNull(callbackWrappers.Add(callback));
}
/// <summary>
/// Create a new wrapped callback.
/// </summary>
/// <param name="callbackWrappers">The CallbackWrappers to add the callback to.</param>
private static void CreateCallbackWrapper(CallbackWrappers callbackWrappers)
{
callbackWrappers.Add(CreateCallback());
}
public void VerifyWrapperIsCollectedWhenCallbackIsCollected()
{
JET_CALLBACK callback = CreateCallback();
var callbackRef = new WeakReference(callback);
var callbackWrappers = new CallbackWrappers();
var wrapperRef = new WeakReference(callbackWrappers.Add(callback));
callback = null;
RunFullGarbageCollection();
callbackWrappers.Collect();
RunFullGarbageCollection();
Assert.IsFalse(callbackRef.IsAlive);
Assert.IsFalse(wrapperRef.IsAlive);
// Avoid premature collection of this objects
GC.KeepAlive(callbackWrappers);
}
public void VerifyNativeCallbackIsNotGarbageCollected()
{
JET_CALLBACK callback = CreateCallback();
var callbackWrappers = new CallbackWrappers();
JetCallbackWrapper wrapper = callbackWrappers.Add(callback);
WeakReference weakRef = new WeakReference(wrapper.NativeCallback);
RunFullGarbageCollection();
Assert.IsTrue(weakRef.IsAlive);
GC.KeepAlive(wrapper);
}
