class BlockChainTest(unittest.TestCase):
def setUp(self):
self.tx = Transaction("Satheesh", "Chaitra", 10)
self.newtx = Transaction("Chaitra", "Nala", 10)
self.block = Block()
self.block.add_transaction(self.tx)
self.block.finalize()
self.blockchain = []
self.blockchain.append(self.block)
def test_new_blockchain(self):
newblock = Block(blockchain=self.blockchain)
newtx = Transaction("Jeeva", "Satheesh", 2)
newblock.add_transaction(newtx)
newblock.finalize()
self.blockchain.append(newblock)
self.assertTrue(validatechain(self.blockchain))
def test_invalid_blockchain(self):
newblock = Block(blockchain=self.blockchain)
newtx = Transaction("Jeeva", "Satheesh", 2)
newblock.add_transaction(newtx)
newblock.finalize()
self.blockchain.append(newblock)
thirdblock = Block(blockchain=self.blockchain)
anothertx = Transaction("Jeeva", "Vinoth", 2)
thirdblock.add_transaction(anothertx)
thirdblock.finalize()
#self.assertTrue(validatechain(self.blockchain))
newblock.add_transaction(anothertx)
self.blockchain[1] = newblock
self.assertFalse(validatechain(self.blockchain))
def setUp(self):
self.tx = Transaction("Satheesh", "Chaitra", 10)
self.newtx = Transaction("Chaitra", "Nala", 10)
self.block = Block()
self.block.add_transaction(self.tx)
self.block.finalize()
self.blockchain = []
self.blockchain.append(self.block)
def test_new_blockchain(self):
newblock = Block(blockchain=self.blockchain)
newtx = Transaction("Jeeva", "Satheesh", 2)
newblock.add_transaction(newtx)
newblock.finalize()
self.blockchain.append(newblock)
self.assertTrue(validatechain(self.blockchain))
def test_invalid_blockchain(self):
newblock = Block(blockchain=self.blockchain)
newtx = Transaction("Jeeva", "Satheesh", 2)
newblock.add_transaction(newtx)
newblock.finalize()
self.blockchain.append(newblock)
thirdblock = Block(blockchain=self.blockchain)
anothertx = Transaction("Jeeva", "Vinoth", 2)
thirdblock.add_transaction(anothertx)
thirdblock.finalize()
#self.assertTrue(validatechain(self.blockchain))
newblock.add_transaction(anothertx)
self.blockchain[1] = newblock
self.assertFalse(validatechain(self.blockchain))
def setUp(self):
self.tx = Transaction("Satheesh", "Chaitra", 10)
self.newtx = Transaction("Chaitra", "Nala", 10)
self.block = Block()
class BlockTest(unittest.TestCase):
def setUp(self):
self.tx = Transaction("Satheesh", "Chaitra", 10)
self.newtx = Transaction("Chaitra", "Nala", 10)
self.block = Block()
def test_add_block(self):
self.assertEqual(self.block.transaction_count, 0)
self.block.add_transaction(self.tx)
self.assertEqual(self.block.transaction_count, 1)
def test_not_final(self):
self.assertFalse(self.block.validate())
self.assertIsNone(self.block.hash)
def test_finalize(self):
self.assertFalse(self.block.validate())
self.block.finalize()
self.assertIsNotNone(self.block.hash)
self.assertIsNone(self.block.prev_hash)
self.assertEqual(self.block.height, 1)
self.assertTrue(self.block.validate())
def test_finalize_twice(self):
self.block.finalize()
with self.assertRaises(ValueError):
self.block.finalize()
def test_finalize_false(self):
self.assertFalse(self.block.validate())
self.assertIsNone(self.block.hash)
self.block.finalize()
old_hash = self.block.hash
self.assertTrue(self.block.validate())
self.block.add_transaction(self.newtx)
with self.assertRaises(ValueError):
self.block.finalize()
new_hash = self.block.hash
self.assertEqual(old_hash, new_hash)
self.assertFalse(self.block.validate())
