def __init__(self, node_id: int, is_faulty: bool, neighbors: List[object], logger: LoggerAux):
self.id = node_id
self.is_faulty = is_faulty
self.neighbors = neighbors
self.logger = logger
self.blockchain = Blockchain()
self.blockchain.genesis()
self.callbacks = {}
class TestBlockchain(unittest.TestCase):
def setUp(self):
self.bc = Blockchain(testing=True)
def test_the_truth(self):
self.assertTrue(True)
def test_new_transaction(self):
val = self.bc.new_transaction('sender', 'recipient', 'amount')
self.assertEqual(val, 2)
def test_new_block(self):
nb = self.bc.new_block(proof=4)
self.assertEqual(nb['proof'], 4)
self.assertEqual(nb['index'], 2)
def test_last_block(self):
lb = self.bc.last_block
self.assertEqual(lb['index'], 1)
self.assertEqual(lb['proof'], 100)
def test_hash(self):
block = {'f1': 1, 'f2': 2}
hash = self.bc.hash(block)
self.assertEqual(
hash,
'5b1486f0e4f72e8413c26da4e967a6a43c0267e60e517cee0866084e8b484071')
def test_valid_proof(self):
vp = self.bc.valid_proof(1, 1)
self.assertFalse(vp)
def test_proof_of_work(self):
proof = self.bc.proof_of_work(100)
self.assertEqual(proof, 888273)
def test_register_node(self):
node = '192.168.0.1:5000'
self.bc.register_node(node)
self.assertIsNotNone(self.bc.nodes)
def test_valid_chain(self):
nb = self.bc.new_block(proof=4)
from flask import Flask, jsonify
from Blockchain.blockchain import Blockchain
app = Flask(__name__)
blockchain = Blockchain()
# Mining new block
@app.route('/mine_block', methods=['GET'])
def mine_block():
previous_block = blockchain.get_previous_block()
previous_proof = previous_block['proof']
proof = blockchain.proof_of_work(previous_proof)
previous_hash = blockchain.hash(previous_block)
block = blockchain.create_block(proof, previous_hash)
response = {
'message': 'Congratulations, you just mined a block',
'index': block['index'],
'timestamp': block['timestamp'],
'proof': block['proof'],
'previous_hash': block['previous_hash']
}
return jsonify(response), 200
# Getting the full Blockchain
@app.route('/get_chain', methods=['GET'])
def get_chain():
response = {'chain': blockchain.chain, 'lenght': len(blockchain.chain)}
return jsonify(response), 200
def setUp(self):
self.bc = Blockchain(testing=True)