def _add_block_number_to_hash_lookup(self, header: BlockHeader) -> None:
block_number_to_hash_key = make_block_number_to_hash_lookup_key(
header.block_number)
self.db.set(
block_number_to_hash_key,
rlp.encode(header.hash, sedes=rlp.sedes.binary),
)
def _add_block_number_to_hash_lookup(self, header):
block_number_to_hash_key = make_block_number_to_hash_lookup_key(
header.block_number
)
self.db.set(
block_number_to_hash_key,
rlp.encode(header.hash, sedes=rlp.sedes.binary),
)
def lookup_block_hash(self, block_number):
"""
Return the block hash for the given block number.
"""
validate_uint256(block_number, title="Block Number")
number_to_hash_key = make_block_number_to_hash_lookup_key(block_number)
return rlp.decode(
self.db.get(number_to_hash_key),
sedes=rlp.sedes.binary,
)
def lookup_block_hash(self, block_number):
"""
Return the block hash for the given block number.
"""
validate_uint256(block_number, title="Block Number")
number_to_hash_key = make_block_number_to_hash_lookup_key(block_number)
return rlp.decode(
self.db.get(number_to_hash_key),
sedes=rlp.sedes.binary,
)
def _lookup_block_hash(self, block_number):
"""
Return the block hash for the given block number.
"""
number_to_hash_key = make_block_number_to_hash_lookup_key(block_number)
# TODO: can raise KeyError
block_hash = rlp.decode(
self.db.get(number_to_hash_key),
sedes=rlp.sedes.binary,
)
return block_hash
def test_add_block_number_to_hash_lookup(chaindb, block):
block_number_to_hash_key = make_block_number_to_hash_lookup_key(
block.number)
assert not chaindb.exists(block_number_to_hash_key)
chaindb._add_block_number_to_hash_lookup(block.header)
assert chaindb.exists(block_number_to_hash_key)
def test_add_block_number_to_hash_lookup(chaindb, block):
block_number_to_hash_key = make_block_number_to_hash_lookup_key(block.number)
assert not chaindb.exists(block_number_to_hash_key)
chaindb._add_block_number_to_hash_lookup(block.header)
assert chaindb.exists(block_number_to_hash_key)
def test_add_block_number_to_hash_lookup(db, block):
block_number_to_hash_key = make_block_number_to_hash_lookup_key(block.number)
assert not db.exists(block_number_to_hash_key)
add_block_number_to_hash_lookup(db, block)
assert db.exists(block_number_to_hash_key)
