Some weeks ago, at the time where I started to dig into this topic,
I extended the BufferProviderProtocol_test to perform a buffer usage pattern
that mimics the usage in the real Render Engine, as implemented last year.
For this, I used the `TestFrame` and the chained-hash dummy computations.
Now, after reordering and clean-up of the `BufferProvider` implementation interfaces,
it can be showed with this computation scheme that
- all buffers are indeed allocated and handed out as expected
- the metadata handling is correct and points to the processed buffers
- the complete memory used in this test is uncorruped and holds correct numbers