import os from binascii import hexlify from lbry.testcase import AsyncioTestCase from lbry.wallet import Wallet, Account, Transaction, Output, Input, Ledger, Database, Headers from tests.unit.wallet.test_transaction import get_transaction, get_output from tests.unit.wallet.test_headers import HEADERS, block_bytes class MockNetwork: def __init__(self, history, transaction): self.history = history self.transaction = transaction self.address = None self.get_history_called = [] self.get_transaction_called = [] self.is_connected = False def retriable_call(self, function, *args, **kwargs): return function(*args, **kwargs) async def get_history(self, address): self.get_history_called.append(address) self.address = address return self.history async def get_merkle(self, txid, height): return {'merkle': ['abcd01'], 'pos': 1} async def get_transaction(self, tx_hash, _=None): self.get_transaction_called.append(tx_hash) return self.transaction[tx_hash] async def get_transaction_and_merkle(self, tx_hash, known_height=None): tx = await self.get_transaction(tx_hash) merkle = {} if known_height: merkle = await self.get_merkle(tx_hash, known_height) return tx, merkle class LedgerTestCase(AsyncioTestCase): async def asyncSetUp(self): self.ledger = Ledger({ 'db': Database(':memory:'), 'headers': Headers(':memory:') }) self.account = Account.generate(self.ledger, Wallet(), "lbryum") await self.ledger.db.open() async def asyncTearDown(self): await self.ledger.db.close() def make_header(self, **kwargs): header = { 'bits': 486604799, 'block_height': 0, 'merkle_root': b'4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b', 'nonce': 2083236893, 'prev_block_hash': b'0000000000000000000000000000000000000000000000000000000000000000', 'timestamp': 1231006505, 'claim_trie_root': b'4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b', 'version': 1 } header.update(kwargs) header['merkle_root'] = header['merkle_root'].ljust(64, b'a') header['prev_block_hash'] = header['prev_block_hash'].ljust(64, b'0') return self.ledger.headers.serialize(header) def add_header(self, **kwargs): serialized = self.make_header(**kwargs) self.ledger.headers.io.seek(0, os.SEEK_END) self.ledger.headers.io.write(serialized) self.ledger.headers._size = self.ledger.headers.io.seek(0, os.SEEK_END) // self.ledger.headers.header_size class TestSynchronization(LedgerTestCase): async def test_update_history(self): account = Account.generate(self.ledger, Wallet(), "torba") address = await account.receiving.get_or_create_usable_address() address_details = await self.ledger.db.get_address(address=address) self.assertIsNone(address_details['history']) self.add_header(block_height=0, merkle_root=b'abcd04') self.add_header(block_height=1, merkle_root=b'abcd04') self.add_header(block_height=2, merkle_root=b'abcd04') self.add_header(block_height=3, merkle_root=b'abcd04') self.ledger.network = MockNetwork([ {'tx_hash': 'abcd01', 'height': 0}, {'tx_hash': 'abcd02', 'height': 1}, {'tx_hash': 'abcd03', 'height': 2}, ], { 'abcd01': hexlify(get_transaction(get_output(1)).raw), 'abcd02': hexlify(get_transaction(get_output(2)).raw), 'abcd03': hexlify(get_transaction(get_output(3)).raw), }) await self.ledger.update_history(address, '') self.assertListEqual(self.ledger.network.get_history_called, [address]) self.assertListEqual(self.ledger.network.get_transaction_called, ['abcd01', 'abcd02', 'abcd03']) address_details = await self.ledger.db.get_address(address=address) self.assertEqual( address_details['history'], '252bda9b22cc902ca2aa2de3548ee8baf06b8501ff7bfb3b0b7d980dbd1bf792:0:' 'ab9c0654dd484ac20437030f2034e25dcb29fc507e84b91138f80adc3af738f9:1:' 'a2ae3d1db3c727e7d696122cab39ee20a7f81856dab7019056dd539f38c548a0:2:' ) self.ledger.network.get_history_called = [] self.ledger.network.get_transaction_called = [] await self.ledger.update_history(address, '') self.assertListEqual(self.ledger.network.get_history_called, [address]) self.assertListEqual(self.ledger.network.get_transaction_called, []) self.ledger.network.history.append({'tx_hash': 'abcd04', 'height': 3}) self.ledger.network.transaction['abcd04'] = hexlify(get_transaction(get_output(4)).raw) self.ledger.network.get_history_called = [] self.ledger.network.get_transaction_called = [] await self.ledger.update_history(address, '') self.assertListEqual(self.ledger.network.get_history_called, [address]) self.assertListEqual(self.ledger.network.get_transaction_called, ['abcd04']) address_details = await self.ledger.db.get_address(address=address) self.assertEqual( address_details['history'], '252bda9b22cc902ca2aa2de3548ee8baf06b8501ff7bfb3b0b7d980dbd1bf792:0:' 'ab9c0654dd484ac20437030f2034e25dcb29fc507e84b91138f80adc3af738f9:1:' 'a2ae3d1db3c727e7d696122cab39ee20a7f81856dab7019056dd539f38c548a0:2:' '047cf1d53ef68f0fd586d46f90c09ff8e57a4180f67e7f4b8dd0135c3741e828:3:' ) class MocHeaderNetwork(MockNetwork): def __init__(self, responses): super().__init__(None, None) self.responses = responses async def get_headers(self, height, blocks): return self.responses[height] class BlockchainReorganizationTests(LedgerTestCase): async def test_1_block_reorganization(self): self.ledger.network = MocHeaderNetwork({ 10: {'height': 10, 'count': 5, 'hex': hexlify( HEADERS[block_bytes(10):block_bytes(15)] )}, 15: {'height': 15, 'count': 0, 'hex': b''} }) headers = self.ledger.headers await headers.connect(0, HEADERS[:block_bytes(10)]) self.add_header(block_height=len(headers)) self.assertEqual(10, headers.height) await self.ledger.receive_header([{ 'height': 11, 'hex': hexlify(self.make_header(block_height=11)) }]) async def test_3_block_reorganization(self): self.ledger.network = MocHeaderNetwork({ 10: {'height': 10, 'count': 5, 'hex': hexlify( HEADERS[block_bytes(10):block_bytes(15)] )}, 11: {'height': 11, 'count': 1, 'hex': hexlify(self.make_header(block_height=11))}, 12: {'height': 12, 'count': 1, 'hex': hexlify(self.make_header(block_height=12))}, 15: {'height': 15, 'count': 0, 'hex': b''} }) headers = self.ledger.headers await headers.connect(0, HEADERS[:block_bytes(10)]) self.add_header(block_height=len(headers)) self.add_header(block_height=len(headers)) self.add_header(block_height=len(headers)) self.assertEqual(headers.height, 12) await self.ledger.receive_header([{ 'height': 13, 'hex': hexlify(self.make_header(block_height=13)) }]) class BasicAccountingTests(LedgerTestCase): async def test_empty_state(self): self.assertEqual(await self.account.get_balance(), 0) async def test_balance(self): address = await self.account.receiving.get_or_create_usable_address() hash160 = self.ledger.address_to_hash160(address) tx = Transaction(is_verified=True)\ .add_outputs([Output.pay_pubkey_hash(100, hash160)]) await self.ledger.db.insert_transaction(tx) await self.ledger.db.save_transaction_io( tx, address, hash160, f'{tx.id}:1:' ) self.assertEqual(await self.account.get_balance(), 100) tx = Transaction(is_verified=True)\ .add_outputs([Output.pay_claim_name_pubkey_hash(100, 'foo', b'', hash160)]) await self.ledger.db.insert_transaction(tx) await self.ledger.db.save_transaction_io( tx, address, hash160, f'{tx.id}:1:' ) self.assertEqual(await self.account.get_balance(), 100) # claim names don't count towards balance self.assertEqual(await self.account.get_balance(include_claims=True), 200) async def test_get_utxo(self): address = yield self.account.receiving.get_or_create_usable_address() hash160 = self.ledger.address_to_hash160(address) tx = Transaction(is_verified=True)\ .add_outputs([Output.pay_pubkey_hash(100, hash160)]) await self.ledger.db.save_transaction_io( 'insert', tx, address, hash160, f'{tx.id}:1:' ) utxos = await self.account.get_utxos() self.assertEqual(len(utxos), 1) tx = Transaction(is_verified=True)\ .add_inputs([Input.spend(utxos[0])]) await self.ledger.db.save_transaction_io( 'insert', tx, address, hash160, f'{tx.id}:1:' ) self.assertEqual(await self.account.get_balance(include_claims=True), 0) utxos = await self.account.get_utxos() self.assertEqual(len(utxos), 0)