def test_tx_version(self):
from hathor.transaction.base_transaction import TxVersion
# test the 1st byte of version field is ignored
version = TxVersion(0xFF00)
self.assertEqual(version.get_cls(), Block)
version = TxVersion(0xFF01)
self.assertEqual(version.get_cls(), Transaction)
# test serialization doesn't mess up with version
block = Block(version=0xFF00, nonce=100, weight=1)
block2 = block.clone()
self.assertEqual(block.version, block2.version)
def setUp(self, tx_storage, reactor=None):
if not reactor:
self.reactor = Clock()
else:
self.reactor = reactor
self.reactor.advance(time.time())
self.tx_storage = tx_storage
assert tx_storage.first_timestamp > 0
tx_storage._manually_initialize()
self.genesis = self.tx_storage.get_all_genesis()
self.genesis_blocks = [tx for tx in self.genesis if tx.is_block]
self.genesis_txs = [tx for tx in self.genesis if not tx.is_block]
from hathor.manager import HathorManager
self.tmpdir = tempfile.mkdtemp()
wallet = Wallet(directory=self.tmpdir)
wallet.unlock(b'teste')
self.manager = HathorManager(self.reactor, tx_storage=self.tx_storage, wallet=wallet)
self.tx_storage.wallet_index = WalletIndex(self.manager.pubsub)
self.tx_storage.tokens_index = TokensIndex()
block_parents = [tx.hash for tx in chain(self.genesis_blocks, self.genesis_txs)]
output = TxOutput(200, bytes.fromhex('1e393a5ce2ff1c98d4ff6892f2175100f2dad049'))
self.block = Block(timestamp=MIN_TIMESTAMP, weight=12, outputs=[output], parents=block_parents,
nonce=100781, storage=tx_storage)
self.block.resolve()
self.block.verify()
tx_parents = [tx.hash for tx in self.genesis_txs]
tx_input = TxInput(
tx_id=self.genesis_blocks[0].hash, index=0,
data=bytes.fromhex('46304402203470cb9818c9eb842b0c433b7e2b8aded0a51f5903e971649e870763d0266a'
'd2022049b48e09e718c4b66a0f3178ef92e4d60ee333d2d0e25af8868acf5acbb35aaa583'
'056301006072a8648ce3d020106052b8104000a034200042ce7b94cba00b654d4308f8840'
'7345cacb1f1032fb5ac80407b74d56ed82fb36467cb7048f79b90b1cf721de57e942c5748'
'620e78362cf2d908e9057ac235a63'))
self.tx = Transaction(
timestamp=MIN_TIMESTAMP + 2, weight=10, nonce=932049, inputs=[tx_input], outputs=[output],
tokens=[bytes.fromhex('0023be91834c973d6a6ddd1a0ae411807b7c8ef2a015afb5177ee64b666ce602')],
parents=tx_parents, storage=tx_storage)
self.tx.resolve()
# Disable weakref to test the internal methods. Otherwise, most methods return objects from weakref.
self.tx_storage._disable_weakref()
self.tx_storage.enable_lock()
def test_block_number_parents(self):
address = get_address_from_public_key(self.genesis_public_key)
output_script = P2PKH.create_output_script(address)
tx_outputs = [TxOutput(100, output_script)]
parents = [tx.hash for tx in self.genesis_txs]
block = Block(
nonce=100,
outputs=tx_outputs,
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.tx_storage)
block.resolve()
with self.assertRaises(IncorrectParents):
block.verify()
def test_block_with_htr_authority(self):
parents = [tx.hash for tx in self.genesis]
output_script = P2PKH.create_output_script(self.address)
output = TxOutput(0b11, output_script, 0b10000000)
self.assertTrue(output.is_token_authority())
block = Block(
nonce=100,
outputs=[output],
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.manager.tx_storage)
block.resolve()
with self.assertRaises(InvalidToken):
block.verify()
def test_tokens_in_block(self):
# a block with token index > 1 should be invalid
parents = [tx.hash for tx in self.genesis]
output_script = P2PKH.create_output_script(self.address)
tx_outputs = [TxOutput(100, output_script, 1)]
block = Block(
nonce=100,
outputs=tx_outputs,
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.manager.tx_storage)
block.resolve()
with self.assertRaises(BlockWithTokensError):
block.verify()
def test_block_unknown_parent(self):
address = get_address_from_public_key(self.genesis_public_key)
output_script = P2PKH.create_output_script(address)
tx_outputs = [TxOutput(100, output_script)]
# Random unknown parent
parents = [hashlib.sha256().digest()]
block = Block(
nonce=100,
outputs=tx_outputs,
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.tx_storage)
block.resolve()
with self.assertRaises(ParentDoesNotExist):
block.verify()
def test_block_outputs(self):
from hathor.transaction import MAX_NUM_OUTPUTS
from hathor.transaction.exceptions import TooManyOutputs
# a block should have no more than MAX_NUM_OUTPUTS outputs
parents = [tx.hash for tx in self.genesis]
address = get_address_from_public_key(self.genesis_public_key)
output_script = P2PKH.create_output_script(address)
tx_outputs = [TxOutput(100, output_script)] * (MAX_NUM_OUTPUTS + 1)
block = Block(
nonce=100,
outputs=tx_outputs,
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.tx_storage)
with self.assertRaises(TooManyOutputs):
block.verify_outputs()
def test_block_inputs(self):
# a block with inputs should be invalid
parents = [tx.hash for tx in self.genesis]
genesis_block = self.genesis_blocks[0]
tx_inputs = [TxInput(genesis_block.hash, 0, b'')]
address = get_address_from_public_key(self.genesis_public_key)
output_script = P2PKH.create_output_script(address)
tx_outputs = [TxOutput(100, output_script)]
block = Block(
nonce=100,
outputs=tx_outputs,
parents=parents,
weight=1, # low weight so we don't waste time with PoW
storage=self.tx_storage)
block.inputs = tx_inputs
block.resolve()
with self.assertRaises(BlockWithInputs):
block.verify()
limitations under the License.
"""
from typing import List, Optional
from hathor.conf import HathorSettings
from hathor.transaction import BaseTransaction, Block, Transaction, TxOutput
from hathor.transaction.storage import TransactionStorage
settings = HathorSettings()
BLOCK_GENESIS = Block(
hash=settings.GENESIS_BLOCK_HASH,
nonce=settings.GENESIS_BLOCK_NONCE,
timestamp=settings.GENESIS_TIMESTAMP,
weight=settings.MIN_BLOCK_WEIGHT,
outputs=[
TxOutput(settings.GENESIS_TOKENS, settings.GENESIS_OUTPUT_SCRIPT),
],
)
TX_GENESIS1 = Transaction(
hash=settings.GENESIS_TX1_HASH,
nonce=settings.GENESIS_TX1_NONCE,
timestamp=settings.GENESIS_TIMESTAMP + 1,
weight=settings.MIN_TX_WEIGHT,
)
TX_GENESIS2 = Transaction(
hash=settings.GENESIS_TX2_HASH,
nonce=settings.GENESIS_TX2_NONCE,
def _test_deferred_methods(self):
# Testing without cloning
self.cache_storage._clone_if_needed = False
block_parents = [tx.hash for tx in self.genesis]
output = TxOutput(
200, bytes.fromhex('1e393a5ce2ff1c98d4ff6892f2175100f2dad049'))
obj = Block(timestamp=MIN_TIMESTAMP,
weight=12,
outputs=[output],
parents=block_parents,
nonce=100781,
storage=self.cache_storage)
obj.resolve()
self.cache_storage.save_transaction_deferred(obj)
loaded_obj1 = yield self.cache_storage.get_transaction_deferred(
obj.hash)
metadata_obj1_def = yield self.cache_storage.get_metadata_deferred(
obj.hash)
metadata_obj1 = obj.get_metadata()
self.assertEqual(metadata_obj1_def, metadata_obj1)
metadata_error = yield self.cache_storage.get_metadata_deferred(
bytes.fromhex(
'0001569c85fffa5782c3979e7d68dce1d8d84772505a53ddd76d636585f3977e'
))
self.assertIsNone(metadata_error)
self.cache_storage._flush_to_storage(
self.cache_storage.dirty_txs.copy())
self.cache_storage.cache = collections.OrderedDict()
loaded_obj2 = yield self.cache_storage.get_transaction_deferred(
obj.hash)
self.assertEqual(loaded_obj1, loaded_obj2)
self.assertTrue(
(yield self.cache_storage.transaction_exists_deferred(obj.hash)))
self.assertFalse((yield self.cache_storage.transaction_exists_deferred(
'0001569c85fffa5782c3979e7d68dce1d8d84772505a53ddd76d636585f3977e')
))
self.assertFalse(
self.cache_storage.transaction_exists(
'0001569c85fffa5782c3979e7d68dce1d8d84772505a53ddd76d636585f3977e'
))
self.assertEqual(obj, loaded_obj1)
self.assertEqual(obj.is_block, loaded_obj1.is_block)
count = yield self.cache_storage.get_count_tx_blocks_deferred()
self.assertEqual(count, 4)
all_transactions = yield self.cache_storage.get_all_transactions_deferred(
)
total = 0
for tx in all_transactions:
total += 1
self.assertEqual(total, 4)