def test_for_replacing_chain(three_block_blockchain):
blockchain = Blockchain()
blockchain.replace_the_chain(three_block_blockchain.chain)
assert blockchain.chain == three_block_blockchain.chain
def test_for_replacing_chain_if_bad_chain(three_block_blockchain):
blockchain = Blockchain()
three_block_blockchain.chain[1].hash = 'bad_hash'
with pytest.raises(Exception, match='Incoming chain is invalid'):
blockchain.replace_the_chain(three_block_blockchain.chain)
else:
transaction = SystemTransactions(
wallet,
transaction_data['recipient'],
transaction_data['amount']
)
pubsub.broadcast_transaction(transaction)
return jsonify(transaction.convert_transaction_data_to_json())
@app.route('/wallet/info')
def wallet_route_info():
return jsonify({'address': wallet.address, 'balance': wallet.the_true_balance})
ROOT_PORT = 5000
PORT = ROOT_PORT
if os.environ.get('PEER') == 'True':
PORT = random.randint(5001, 6000)
result_of_request = requests.get(f'http://localhost:{ROOT_PORT}/blockchain')
result_of_blockchain_req = Blockchain.convert_blocklist_to_chain_from_json(result_of_request.json())
try:
blockchain.replace_the_chain(result_of_blockchain_req.chain)
print('\n -- The local chain has been successfully synchronized ')
except Exception as e:
print(f'\n -- Error synrchronizing: {e}')
app.run(port=PORT)
