Add end to end tests for forward and backward compatibility #1885
Description
Story Form
As a Block Node Engineer
I want to have end to end tests for forward and backward compatibility
So that I have confidence that the block node will correctly handled messages for past and future block stream versions.
This story depends on #1883.
Technical Notes
- New End-To-End tests
- Feed the "blanket blocks" through the block node
- Verify that blocks are stored by persistence, verified by verification, and delivered by subscriber correctly and fully intact.
- All BlockItems are byte-identical to the same item at input
- All BlockItems are in the same order as they were at input
- Make sure that we cover both publisher and backfill plugins as input sources.