def test_transactions_validate_invalid_rewards():
miner_wallet = Wallet()
reward_transaction = Transactions.transaction_reward(miner_wallet)
reward_transaction.output[miner_wallet.address] = 100
reward_transaction.output['recp1'] = 100
with pytest.raises(Exception, match="Invalid transaction reward"):
Transactions.verify_transaction(reward_transaction)
def test_blockchain_valid_transaction_duplicate_rewardss():
blockchain = Blockchain()
transaction = Transactions(Wallet(), 'recipient', 100).to_json()
reward_transaction = Transactions.transaction_reward(Wallet()).to_json()
blockchain.add_block([transaction, reward_transaction, reward_transaction])
with pytest.raises(Exception, match="has multiple rewards"):
Blockchain.is_chain_transaction_valid(blockchain.chain)
def blockchain():
blockchain = Blockchain()
for i in range(3):
miner_wallet = Wallet()
transaction = Transactions(Wallet(), 'recipient', i)
reward_transaction = Transactions.transaction_reward(miner_wallet)
blockchain.add_block([transaction.to_json()])
return blockchain
def mine_block():
#get the transaction data and put it into the data field of add_block
transaction_data = transaction_pool.transaction_data()
#Append the transaction reward into the wallet of the miner
transaction_reward = Transactions.transaction_reward(wallet).to_json()
transaction_data.append(transaction_reward)
blockchain.add_block(transaction_data)
block = blockchain.chain[-1]
#publish the block throughout the network to the subscribed channel
pubsub.broadcast_block(block)
#After everytime a block is mined, we need to clear the transaction pool.
transaction_pool.clear_transaction(blockchain)
return block.to_json(), 200
def test_transactions_validate_reward():
miner_wallet = Wallet()
reward_transaction = Transactions.transaction_reward(miner_wallet)
Transactions.verify_transaction(reward_transaction)
def test_transactions_reward():
miner_wallet = Wallet()
reward_transaction = Transactions.transaction_reward(miner_wallet)
assert reward_transaction.output[miner_wallet.address] == MINING_REWARD
assert reward_transaction.input == MINING_REWARD_INPUT