Method clear in android.util.SparseIntArray not mocked

[domRufio]

I'm trying to mock a class which uses a GridLayoutManager, using the MockK library, I keep receiving the error above, but am unsure how to mock SparseIntArray.clear() which is being called from within a method of the abstract helper class SpanSizeLookup within GridLayoutManager. Any ideas?

 

[Deleted User]

It would help to see some code.