def test_block_to_dict(self):
wallet = Wallet()
transaction = Transaction(wallet.pubkey, "CityU", 1)
signature = wallet.sign_transaction(transaction)
transaction.add_signature(signature)
block = Block(0, [transaction.to_json()], datetime.datetime.now().strftime("%m/%d/%Y, %H:%M:%S"), "0")
content = block.to_dict()
self.assertIsInstance(content, dict)
self.assertEqual(list(content.keys()), ["index", "timestamp", "previous_hash", "merkle_root", "nonce", "difficulty"])
def lightweight():
fullchain = [json.loads(block) for block in blockchain.chain]
lightweight = []
for block in fullchain:
block_object = Block(block['index'], block['transaction'], block['timestamp'], block['previous_hash'])
block_object.merkle_root = block['merkle_root']
block_object.nonce = block['nonce']
block_object.difficulty = block['difficulty']
lightweight.append(block_object.to_dict())
response = {
'chain': json.dumps(lightweight),
'length': len(lightweight)
}
return jsonify(response), 200