def test_chain_replacement_bad_chain(blockchain_init):
blockchain = Blockchain()
blockchain_init.chain[1].hash = "evil_hash"
with pytest.raises(Exception,
match="Cannot replace. The incoming chain is invalid:"):
blockchain.chain_replacement(blockchain_init.chain)
def route_transactions():
return jsonify(transaction_pool.transaction_data())
ROOT_PORT = 5000
PORT = ROOT_PORT
if os.environ.get("PEER") == 'True':
PORT = random.randint(5001, 6000)
result = requests.get(f"http://localhost:{ROOT_PORT}/blockchain")
result_blockchain = Blockchain.from_json(result.json())
try:
blockchain.chain_replacement(result_blockchain.chain)
print(f"\n -- Successfully syncronized the local chain.")
except Exception as e:
print(f"\n -- Error syncronizing: {e}")
if os.environ.get("SEED_DATA") == "True":
print('\n -- Seeding Data.')
for i in range(10):
blockchain.add_block([
Transaction(Wallet(), Wallet().address,
random.randint(2, 50)).to_json(),
Transaction(Wallet(), Wallet().address,
random.randint(2, 50)).to_json()
])
for i in range(3):
def test_chain_replacement(blockchain_init):
blockchain = Blockchain()
blockchain.chain_replacement(blockchain_init.chain)
assert blockchain.chain == blockchain_init.chain
