def test_chaindb_get_score(chaindb, fixture_sm_class,
sample_beacon_block_params, fork_choice_scoring):
genesis = BeaconBlock.create(**sample_beacon_block_params).mset(
"parent_root", GENESIS_PARENT_HASH, "slot", 0)
chaindb.persist_block(genesis, genesis.__class__, fork_choice_scoring)
genesis_score_key = SchemaV1.make_block_root_to_score_lookup_key(
genesis.signing_root)
genesis_score_data = chaindb.db.get(genesis_score_key)
genesis_score_class = fork_choice_scoring.get_score_class()
genesis_score = genesis_score_class.deserialize(genesis_score_data)
expected_genesis_score = fork_choice_scoring.score(genesis)
assert genesis_score == expected_genesis_score
assert (chaindb.get_score(genesis.signing_root,
genesis_score_class) == expected_genesis_score)
block1 = BeaconBlock.create(**sample_beacon_block_params).mset(
"parent_root", genesis.signing_root, "slot", 1)
chaindb.persist_block(block1, block1.__class__, fork_choice_scoring)
block1_score_key = SchemaV1.make_block_root_to_score_lookup_key(
block1.signing_root)
block1_score_data = chaindb.db.get(block1_score_key)
block1_score = genesis_score_class.deserialize(block1_score_data)
expected_block1_score = fork_choice_scoring.score(block1)
assert block1_score == expected_block1_score
assert (chaindb.get_score(block1.signing_root,
genesis_score_class) == expected_block1_score)
def test_chaindb_get_finalized_head(
chaindb_at_genesis,
genesis_block,
genesis_state,
sample_beacon_block_params,
fork_choice_scoring,
):
chaindb = chaindb_at_genesis
block = BeaconBlock.create(**sample_beacon_block_params).set(
"parent_root", genesis_block.signing_root)
assert chaindb.get_finalized_head(genesis_block.__class__) == genesis_block
assert chaindb.get_justified_head(genesis_block.__class__) == genesis_block
state_with_finalized_block = genesis_state.set(
"finalized_checkpoint", Checkpoint.create(root=block.signing_root))
chaindb.persist_state(state_with_finalized_block)
chaindb.persist_block(block, BeaconBlock, fork_choice_scoring)
assert chaindb.get_finalized_head(
BeaconBlock).signing_root == block.signing_root
assert chaindb.get_justified_head(genesis_block.__class__) == genesis_block
def test_chaindb_get_justified_head(
chaindb_at_genesis,
genesis_block,
genesis_state,
sample_beacon_block_params,
fork_choice_scoring,
config,
):
chaindb = chaindb_at_genesis
block = BeaconBlock.create(**sample_beacon_block_params).set(
"parent_root", genesis_block.signing_root)
assert chaindb.get_finalized_head(genesis_block.__class__) == genesis_block
assert chaindb.get_justified_head(genesis_block.__class__) == genesis_block
# test that there is only one justified head per epoch
state_with_bad_epoch = genesis_state.set(
"current_justified_checkpoint",
Checkpoint.create(root=block.signing_root, epoch=config.GENESIS_EPOCH),
)
chaindb.persist_state(state_with_bad_epoch)
chaindb.persist_block(block, BeaconBlock, fork_choice_scoring)
assert chaindb.get_finalized_head(genesis_block.__class__) == genesis_block
assert chaindb.get_justified_head(genesis_block.__class__) == genesis_block
# test that the we can update justified head if we satisfy the invariants
state_with_justified_block = genesis_state.set(
"current_justified_checkpoint",
Checkpoint.create(root=block.signing_root,
epoch=config.GENESIS_EPOCH + 1),
)
chaindb.persist_state(state_with_justified_block)
assert chaindb.get_finalized_head(genesis_block.__class__) == genesis_block
assert chaindb.get_justified_head(
BeaconBlock).signing_root == block.signing_root
def block(request):
return SignedBeaconBlock.create(message=BeaconBlock.create(
parent_root=GENESIS_PARENT_HASH, slot=request.param))
def block(request, sample_beacon_block_params):
return BeaconBlock.create(**sample_beacon_block_params).mset(
"parent_root", GENESIS_PARENT_HASH, "slot", request.param)