def test_get_last_block(self):
blockchain = Blockchain()
g_block = blockchain.get_last_block()
test_block = None
while not test_block:
test_block = blockchain.mine_block(data="Test", node_addr="8367")
self.assertEqual(test_block, blockchain.get_last_block())
self.assertNotEqual(g_block, blockchain.get_last_block())
def test_mine_block(self):
blockchain = Blockchain()
test_block = None
while not test_block:
test_block = blockchain.mine_block(data="Test", node_addr="8367")
self.assertIsNotNone(test_block)
self.assertTrue(blockchain.verify_block(test_block))
self.assertEqual(blockchain.get_last_block(), test_block)
def test_verify_block(self):
blockchain = Blockchain()
# A block that was not mined on the chain cannot be verified:
wrong_block = Block(data="Wrong block", user_addr="Bad person")
correct_block = blockchain.mine_block(data="Correct block",
node_addr="Good person")
self.assertFalse(blockchain.verify_block(wrong_block))
self.assertTrue(blockchain.verify_block(correct_block))
def test_get_ledger(self):
blockchain = Blockchain()
g_block_hash = blockchain.get_last_block().get_block_hash()
test_block = None
while not test_block:
test_block = blockchain.mine_block(data="Test", node_addr="8367")
ledger = blockchain.get_ledger()
self.assertIsNotNone(ledger[g_block_hash])