def testReplaceChainBadChain(Blockchain3Blocks):
blockchain = Blockchain()
Blockchain3Blocks.chain[1].hash = 'evil_hash'
with pytest.raises(Exception, match='The incoming chain is invalid'):
blockchain.replaceChain(Blockchain3Blocks.chain)
return jsonify({'address': wallet.address, 'balance': wallet.balance})
@app.route('/blockchain/mine')
def routeBlockchainMine():
transactionData = transactionPool.transactionData()
transactionData.append(Trasaction.rewardTransaction(wallet).to_json())
blockchain.addBlock(transactionData)
block = blockchain.chain[-1]
pubsub.broadcastBlock(block)
transactionPool.clearTransaction(blockchain)
return jsonify(block.to_json())
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')
resultBlockchain = Blockchain.fromJson(result.json())
try:
blockchain.replaceChain(resultBlockchain.chain)
print('\n-- Successful synchronized the local chain')
except Exception as e:
print(f'\n-- Error synchornized:{e}')
app.run(port=PORT)
def testReplaceChain(Blockchain3Blocks):
blockchain = Blockchain()
blockchain.replaceChain(Blockchain3Blocks.chain)
assert blockchain.chain == Blockchain3Blocks.chain