update_ranking.md

LightClientUpdate ranking tests

This series of tests provides reference test vectors for validating that LightClientUpdate instances are ranked in a canonical order.

Test case format

meta.yaml

updates_count: int  -- integer, decimal

updates_<index>.ssz_snappy

A series of files, with <index> in range [0, updates_count), ordered by descending precedence according to is_better_update (best update at index 0).

Each file is a SSZ-snappy encoded LightClientUpdate.

Condition

A test-runner should load the provided update objects and verify that the local implementation ranks them in the same order. Note that the update objects are not restricted to a single sync committee period for the scope of this test.