def test_blockchain_raise_parent_exception(self):
self.dict_list += [{
'data_hash': 'hash-06',
'prev_block': 'hash-03',
'next_block': 'hash-07'
}]
blockchain = Blockchain(self.block_list)
with self.assertRaises(BlockchainTreeCollisionException):
blockchain.build()
self.assertFalse(blockchain.is_valid)
def test_blockchain_raise_parent_exception(self):
self.dict_list += [{
'data_hash': 'hash-06',
'prev_block': None,
'next_block': 'hash-05'
}]
blockchain = Blockchain(self.block_list)
with self.assertRaises(BlockchainTreeParentCollisionException):
blockchain.generate_tree()
self.assertFalse(blockchain.is_valid)
def test_blockchain_generation_with_disordered_transactions(self):
self.dict_list += [{
'data_hash': 'hash-06',
'prev_block': 'hash-07',
'next_block': None
}, {
'data_hash': 'hash-07',
'prev_block': 'hash-05',
'next_block': 'hash-06'
}]
blockchain = Blockchain(self.block_list)
blockchain.build()
self.assertEqual(len(blockchain.block_tree.keys()), 7)
def test_blockchain_generation(self):
blockchain = Blockchain(self.block_list)
blockchain.build()
self.assertEqual(len(blockchain.block_tree.keys()), 5)
def test_blockchain_last_block_hash(self):
blockchain = Blockchain(self.block_list)
blockchain.build()
self.assertEqual(blockchain.last_block_hash, 'hash-05')
def blockchain(self) -> Blockchain:
blockchain = Blockchain(self.queryset)
blockchain.generate_tree(raise_exception=False)
return blockchain