def test_verify_valid_signature():
data = {'data': 'test-data'}
wallet = Wallet()
signature = wallet.sign(data)
assert Wallet.verify(wallet.public_key, data, signature)
def test_verify_tampered_data():
data = {'foo': 'test_data'}
wallet = Wallet()
signature = wallet.sign(data)
data = {'foo': 'changed_data'}
assert not Wallet.verify(wallet.public_key, data, signature)
def test_blockchain_valid_transaction_incorrect_historical_balance(blockchain):
wallet = Wallet()
bad_transaction = Transactions(wallet, 'recipient', 1)
bad_transaction.output[wallet.address] = 9000
bad_transaction.input['amount'] = 9001
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
blockchain.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match="did not have the correct balance"):
Blockchain.is_chain_transaction_valid(blockchain.chain)
def test_is_valid_transaction_chain_bad_histroric_balance(blockchain_3b):
wallet = Wallet()
bad_trans = Transaction(wallet, 'recipient', 1)
bad_trans.output[wallet.address] = 9001
bad_trans.input['amount'] = 9002
bad_trans.input['signature'] = wallet.sign(bad_trans.output)
blockchain_3b.add_block([bad_trans.to_json()])
with pytest.raises(Exception, match='has an invalid input amount.'):
Blockchain.is_valid_trans_chain(blockchain_3b.chain)
def test_is_valid_transaction_chain_bad_balance_history(populated_blockchain):
wallet = Wallet()
bad_transaction = Transaction(wallet, 'recipient', 1)
bad_transaction.output[wallet.address] = 9000
bad_transaction.input['amount'] = 9001
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
populated_blockchain.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match='invalid input amount'):
Blockchain.is_valid_transaction_chain(populated_blockchain.chain)
def test_is_valid_transaction_bad_historic_balance(blockchain_three_blocks):
wallet = Wallet()
bad_transaction = Transaction(Wallet(), 'recipient', 1)
bad_transaction.output[wallet.address] = 9000
bad_transaction.input['amount'] = 9001
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
blockchain_three_blocks.add_block([bad_transaction.to_json()])
with pytest.raises(Exception):
Blockchain.is_valid_transaction_chain(blockchain_three_blocks.chain)
def test_is_transaction_chain_valid_balance_tillnow(blockchain_ten_blocks):
wallet = Wallet()
corrupt_transaction = Transaction(wallet, "abcd", 10)
corrupt_transaction.output[wallet.address] = 9000
corrupt_transaction.input['amount'] = 9010
corrupt_transaction.input['signature'] = wallet.sign(
corrupt_transaction.output)
blockchain_ten_blocks.add_block([corrupt_transaction.to_json()])
with pytest.raises(Exception):
BlockChain.is_transaction_chain_valid(blockchain_ten_blocks.chain)
def test_is_valid_transaction_chain_bad_history_balance(
blockchain_three_blocks):
wallet = Wallet()
bad_transaction = Transaction(wallet, "recipient", 1)
bad_transaction.output[wallet.address] = 9000
bad_transaction.input["amount"] = 9001
bad_transaction.input["signature"] = wallet.sign(bad_transaction.output)
blockchain_three_blocks.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match="has an invalid input amount"):
Blockchain.is_valid_transaction_chain(blockchain_three_blocks.chain)
def test_is_valid_transaction_chain_bad_history_balance(
blockchain_three_blocks):
wallet = Wallet()
bad_transaction = Transaction(wallet, 'deadly_recipient', 1)
bad_transaction.output[wallet.address] = 9999
bad_transaction.input['amount'] = 10000
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
blockchain_three_blocks.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match='has invalid input amount'):
Blockchain.is_valid_transaction_chain(blockchain_three_blocks.chain)
def test_is_valid_transaction_chain_bad_historic_balance(blockchain_three_blocks):
wallet = Wallet()
bad_transaction = Transaction(wallet, 'recipient', 1)
# don't understand the point of this line of code. the point of the test is to ensure bad data isn't entered into the input['amount'] field which would result in the sender wallet's balance getting inflated. altering the output[wallet.address] field only serves to change the signature result, as far as i can tell. the test even passes when commenting out this line of code.
bad_transaction.output[wallet.address] = 9000
bad_transaction.input['amount'] = 9001
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
blockchain_three_blocks.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match='has invalid input amount'):
Blockchain.is_valid_transaction_chain(blockchain_three_blocks.chain)
def test_invalid_transaction_chain_bad_historic_balance(blockchain_init):
wallet = Wallet()
bad_transaction = Transaction(wallet, "recipient", 1)
bad_transaction.output[wallet.address] = 9999
bad_transaction.input["amount"] = 10000
bad_transaction.input["signature"] = wallet.sign(bad_transaction.output)
blockchain_init.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match="invalid input amount."):
Blockchain.is_valid_transaction_chain(blockchain_init.chain)
def test_is_valid_transaction_chain_bad_historic_balance():
blockchain_three_blocks = Blockchain()
for i in range(3):
blockchain_three_blocks.add_block([Transaction(Wallet(), 'recipient', i).to_json()])
wallet = Wallet()
bad_transaction = Transaction(wallet, 'recipient', 5)
bad_transaction.output[wallet.address] = 10000
bad_transaction.input['amount'] = 10005
bad_transaction.input['signature'] = wallet.sign(bad_transaction.output)
blockchain_three_blocks.add_block([bad_transaction.to_json()])
with pytest.raises(Exception, match="has an invalid input amount"):
Blockchain.is_valid_transaction_chain(blockchain_three_blocks.chain)
def test_verify_invalid_signature():
data = {'foo': 'test_data'}
wallet = Wallet()
signature = wallet.sign(data)
assert not Wallet.verify(Wallet().public_key, data, signature)
def test_verify_wallet_invalid_signature():
data = {'test': 'test_data'}
wallet = Wallet()
signature = wallet.sign(data)
assert not Wallet.verify(wallet.public_key, 'different-data', signature)
def test_veirfy_valid_signature():
''' Test that a wallet can verify a valid signature correctly '''
data = {'foo': 'test_data'}
wallet = Wallet()
signature = wallet.sign(data)
assert (Wallet.verify(wallet.public_key, data, signature))
def test_verify_signature():
data = {"block": "chain"}
wallet = Wallet()
signature = wallet.sign(data)
assert Wallet.verify_signature(wallet.public_key, data, signature)
def test_verify_invalid_signature():
data = {"foo": "test-data"}
wallet = Wallet()
signature = wallet.sign(data)
assert not Wallet.verify(Wallet().public_key, data, signature)
def test_verify_invalid_signature():
wallet = Wallet()
data = {'foo':'bar'}
signature = wallet.sign(data)
assert not Wallet.verify(Wallet().public_key, data, signature) == True
def test_sign_data():
wallet = Wallet()
data = {'foo':'bar'}
assert wallet.sign(data)
def test_verify_valid_signature():
data = "test_data"
wallet = Wallet()
signature = wallet.sign(data)
assert Wallet.verify(wallet.public_key, data, signature)
def test_verify_valid_signature():
data = {'foo': '_data'}
wallet = Wallet()
signa = wallet.sign(data)
assert Wallet.verify(wallet.public_key, data, signa) is True
def test_verify_invalid_signature():
data = {'deadly_key': 'deadly_value'}
wallet = Wallet()
signature = wallet.sign(data)
assert not Wallet.verify(Wallet().public_key, data, signature)
def test_verify_valid_signatures():
data = {'foo': 'bar'}
wallet = Wallet()
signature = wallet.sign(data)
assert Wallet.verify(wallet.public_key, data, signature)
