def test_get_latest_block_hash(self):
reset_db()
first_hash = BlockStorageDriver.get_latest_block_hash()
# We reset the DB, so the latest hash we pull should be the genesis hash
self.assertEqual(first_hash, GENESIS_HASH)
def test_validate_blockchain_invalid(self):
reset_db()
# Stuff a bunch of valid blocks in
for _ in range(4):
mn_sk = masternodes[0]['sk']
timestamp = random.randint(0, pow(2, 32))
raw_transactions = [
build_test_transaction().serialize() for _ in range(19)
]
tree = MerkleTree(raw_transactions)
bc = build_test_contender(tree=tree)
BlockStorageDriver.store_block(block_contender=bc,
raw_transactions=raw_transactions,
publisher_sk=mn_sk,
timestamp=timestamp)
# Stuff a sketch block in that doesn't link to the last
sketch_block = self._build_block_data(
) # by default this has prev_block_hash = 'AAAAA...'
sketch_block['hash'] = BlockStorageDriver.compute_block_hash(
sketch_block)
with DB() as db:
db.tables.blocks.insert(
[BlockStorageDriver._encode_block(sketch_block)]).run(db.ex)
self.assertRaises(InvalidBlockLinkException,
BlockStorageDriver.validate_blockchain)
def test_validate_blockchain(self):
reset_db()
# Stuff a bunch of blocks in
for _ in range(4):
mn_sk = TESTNET_MASTERNODES[0]['sk']
timestamp = random.randint(0, pow(2, 32))
raw_transactions = [build_test_transaction().serialize() for _ in range(19)]
tree = MerkleTree(raw_transactions)
bc = build_test_contender(tree=tree)
BlockStorageDriver.store_block(block_contender=bc, raw_transactions=raw_transactions, publisher_sk=mn_sk,
timestamp=timestamp)
# This should not blow up
BlockStorageDriver.validate_blockchain()
def setUp(self):
reset_db()