PR feedback

Author: hwwhww

eth/beacon/state_machines/forks/serenity/validation.py

@@ -48,7 +48,7 @@ def validate_serenity_proposer_signature(state: BeaconState,
     proposal_root = ProposalSignedData(
         state.slot,
         beacon_chain_shard_number,
-         block_without_signature_root,
+        block_without_signature_root,
     ).root
 
     # Get the public key of proposer
@@ -59,7 +59,7 @@ def validate_serenity_proposer_signature(state: BeaconState,
         pubkey=proposer_pubkey,
         message=proposal_root,
         signature=block.signature,
-         domain=get_domain(state.fork_data, state.slot, SignatureDomain.DOMAIN_PROPOSAL),
+        domain=get_domain(state.fork_data, state.slot, SignatureDomain.DOMAIN_PROPOSAL),
     )
 
     if not is_valid_signature:

tests/beacon/state_machines/test_demo.py

@@ -37,13 +37,14 @@ def test_demo(base_db,
     chaindb = BeaconChainDB(base_db)
     state = genesis_state
     block = SerenityBeaconBlock(**sample_beacon_block_params).copy(
-        slot=state.slot + 1,
+        slot=state.slot + 2,
     )
 
     # Sign block
     beacon_proposer_index = get_beacon_proposer_index(
+        # TODO: use `state` when the bug of `get_shard_committees_at_slot` is fixed.
         state.copy(
-            slot=state.slot + 1,
+            slot=state.slot + 2,
         ),
         block.slot,
         config.EPOCH_LENGTH,