Release asset is not aware of object which has been loaded before?

Hi guys.

I'm currently writing a couple of unit tests and one of the is failing for me and I don't understand exactly what I am doing wrong here. My code looks like:

Code (CSharp):

1.         public IEnumerator TestUnloadingAssetAsync()
2.         {
3.             string assetName = "Assets/Scenes/TestScene/TestTexture.png";
4.             Texture loadedTexture = null;
5.             int referenceCount = 0;
6.             AsyncOperationHandle<Texture> handle = addressablesLoader.LoadAssetAsync<Texture>(assetName, texture => loadedTexture = texture);
7.          
8.             PropertyInfo propInfo = handle.GetType().GetProperty("ReferenceCount", BindingFlags.NonPublic | BindingFlags.Instance);
9.  
10.             while (loadedTexture == null)
11.             {
12.                 yield return null;
13.                 referenceCount = (int)propInfo.GetValue(handle);
14.             }
15.  
16.             Assert.IsTrue(referenceCount > 0); // is 1 and that's fine!
17.  
18.             Addressables.Release(handle); // doesn't work neither???
19.             referenceCount = (int)propInfo.GetValue(handle);
20.  
21.             Assert.IsTrue(referenceCount == 0);
22.         }

With the error message:

Addressables.Release was called on an object that Addressables was not previously aware of.  Thus nothing is being released

UnityEngine.AddressableAssets.Addressables:Release(AsyncOperationHandle`1)

What am I doing wrong? In my understanding, the reference count should be 0 after releasing the asset again.

Thank you for help,
Patrick

 

Unity 2019.3.0f3 and Addressables 1.8.3

 

What is addressablesLoader?
Does it work if you call handle.Release instead?

 

Sorry, it's just a wrapper class around the Addressables API. I updated the code above. It's just calling

Addressables.Release(obj);

.

And I can't call

handle.Release

as handle is a

AsyncOperationHandle<Texture>

which doesn't have a Release method or did I get you wrong?

 

Hey,
You can use the following to release the handle:

Code (CSharp):

1. Addressables.Release(handle)

.

 

That's exactly what is not working

 

...Sorry, my bad... xD

There was a bug in the Release method in 1.6.2 where generic handles were not converted correctly to non-generic handles.

You could try to use AsyncOperationHandle instead of AsyncOperationHandle<Texture> just to check if it is something similar.

 

No worries. And sadly I tried that also and it didn't work neither.