def test_unsigned_block_return_false(self):
# Arrange
block = Block()
# Assert
assert block.is_signed() is False
def test_signed_block_return_true(self):
# Arrange
block = Block()
random_sign(block, REF_PUB_KEY, REF_PRIV_KEY)
# Assert
assert block.is_signed() is True
def test_raise_exception_if_block_is_already_signed(self):
# Arrange
block = Block()
tx = Transaction(VERSION, Transaction.GUZI_CREATE, EMPTY_HASH, 0)
random_sign(block, REF_PUB_KEY, REF_PRIV_KEY)
# Act
with pytest.raises(FullBlockError):
block.add_transaction(tx)
def test_increase_transaction_count(self):
# Arrange
block = Block()
tx = Transaction(VERSION, Transaction.GUZI_CREATE, EMPTY_HASH, 0)
# Act
block.add_transaction(tx)
# Assert
assert len(block.transactions) == 1
def test_compute_merkle_root_0_tx(self):
"""
If there is 0 transaction, merkle root should be None
"""
# Arrange
block = Block()
# Act
result = block.compute_merkle_root()
# Assert
assert result is None
def test_sign(self):
# Arrange
vk = ecdsa.VerifyingKey.from_string(REF_PUB_KEY, curve=ecdsa.SECP256k1)
block = Block()
data = block.hash()
# Act
signature = sign(data, REF_PRIV_KEY)
# Assert
assert vk.verify(signature, data) is True
def test_return_true_if_transaction_in(self):
# Arrange
tx0 = Transaction(VERSION, Transaction.GUZI_CREATE, KEY_POOL[0]["pub"],
0)
tx1 = Transaction(VERSION, Transaction.GUZI_CREATE, KEY_POOL[1]["pub"],
0)
b = Block()
# Act
b.add_transactions([tx0, tx1])
# Assert
assert b._containUser(KEY_POOL[2]["pub"]) is False
def test_transaction_not_found(self):
# Arrange
tx0 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
tx1 = Transaction(VERSION, Transaction.GUZIBOX_CREATE,
NEW_USER_PUB_KEY, 0)
tx2 = Transaction(VERSION, Transaction.PAYMENT, NEW_USER_PUB_KEY, 0)
b = Block()
# Act
b.add_transactions([tx1, tx2])
# Assert
assert b._contain_tx(tx0) is False
def test_compute_merkle_root_1_tx(self):
"""
If there is only 1 transaction, merkle root should be :
hash(hash0 + hash0)
"""
# Arrange
tx = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY, 0)
block = Block()
block.add_transaction(tx)
expected_merkle_root = guzi_hash(tx.to_hash() + tx.to_hash())
# Act
result = block.compute_merkle_root()
# Assert
assert result == expected_merkle_root
def test_unfound_transaction(self):
block = Block()
tx1 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
tx1.date = date(2011, 12, 13)
tx2 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
tx2.date = date(2012, 11, 14)
tx3 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
tx3.date = date(2013, 10, 15)
# Act
block.add_transactions([tx1, tx2, tx3])
result = block.find_transaction(Transaction.GUZI_CREATE,
date(2014, 11, 14))
# Assert
assert result is None
def test_compute_merkle_root_2_tx(self):
"""
If there are 2 transactions, merkle root should be :
hash(hash0 + hash1)
"""
# Arrange
tx0 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
tx1 = Transaction(VERSION, Transaction.GUZI_CREATE, NEW_USER_PUB_KEY,
0)
block = Block()
block.add_transactions([tx0, tx1])
expected_merkle_root = guzi_hash(tx0.to_hash() + tx1.to_hash())
# Act
result = block.compute_merkle_root()
# Assert
assert result == expected_merkle_root
def test_raise_exception_if_too_much_transactions_in_last_block(self):
# Arrange
block = Block()
tx = Transaction(VERSION, Transaction.PAYMENT, NEW_USER_PUB_KEY, 0)
for i in range(MAX_TX_IN_BLOCK):
block.add_transaction(
Transaction(VERSION, Transaction.PAYMENT, NEW_USER_PUB_KEY, i))
# Act
with pytest.raises(FullBlockError):
block.add_transaction(tx)
def test_shouldnt_add_existing_transaction_twice(self):
# Arrange
block = Block()
tx = Transaction(VERSION, Transaction.GUZI_CREATE, EMPTY_HASH, 0)
# Act
block.add_transaction(tx)
block.add_transaction(tx)
block.add_transaction(tx)
# Assert
assert len(block.transactions) == 1
