import asyncio import random from itertools import chain from lbry.wallet.transaction import Transaction, Output, Input from lbry.testcase import IntegrationTestCase from lbry.wallet.util import satoshis_to_coins, coins_to_satoshis from lbry.wallet.manager import WalletManager class BasicTransactionTests(IntegrationTestCase): async def test_variety_of_transactions_and_longish_history(self): await self.blockchain.generate(300) await self.assertBalance(self.account, '0.0') addresses = await self.account.receiving.get_addresses() # send 10 coins to first 10 receiving addresses and then 10 transactions worth 10 coins each # to the 10th receiving address for a total of 30 UTXOs on the entire account for i in range(10): txid = await self.blockchain.send_to_address(addresses[i], 10) await self.wait_for_txid(txid, addresses[i]) txid = await self.blockchain.send_to_address(addresses[9], 10) await self.wait_for_txid(txid, addresses[9]) # use batching to reduce issues with send_to_address on cli await self.assertBalance(self.account, '200.0') self.assertEqual(20, await self.account.get_utxo_count()) # address gap should have increase by 10 to cover the first 10 addresses we've used up addresses = await self.account.receiving.get_addresses() self.assertEqual(30, len(addresses)) # there used to be a sync bug which failed to save TXIs between # daemon restarts, clearing cache replicates that behavior self.ledger._tx_cache.clear() # spend from each of the first 10 addresses to the subsequent 10 addresses txs = [] for address in addresses[10:20]: txs.append(await Transaction.create( [], [Output.pay_pubkey_hash( coins_to_satoshis('1.0'), self.ledger.address_to_hash160(address) )], [self.account], self.account )) await asyncio.wait([self.broadcast(tx) for tx in txs]) await asyncio.wait([self.ledger.wait(tx) for tx in txs]) # verify that a previous bug which failed to save TXIs doesn't come back # this check must happen before generating a new block self.assertTrue(all([ tx.inputs[0].txo_ref.txo is not None for tx in await self.ledger.db.get_transactions(txid__in=[tx.id for tx in txs]) ])) await self.blockchain.generate(1) await asyncio.wait([self.ledger.wait(tx) for tx in txs]) await self.assertBalance(self.account, '199.99876') # 10 of the UTXOs have been split into a 1 coin UTXO and a 9 UTXO change self.assertEqual(30, await self.account.get_utxo_count()) # spend all 30 UTXOs into a a 199 coin UTXO and change tx = await Transaction.create( [], [Output.pay_pubkey_hash( coins_to_satoshis('199.0'), self.ledger.address_to_hash160(addresses[-1]) )], [self.account], self.account ) await self.broadcast(tx) await self.ledger.wait(tx) await self.blockchain.generate(1) await self.ledger.wait(tx) self.assertEqual(2, await self.account.get_utxo_count()) # 199 + change await self.assertBalance(self.account, '199.99649') async def test_sending_and_receiving(self): account1, account2 = self.account, self.wallet.generate_account(self.ledger) await self.ledger.subscribe_account(account2) await self.assertBalance(account1, '0.0') await self.assertBalance(account2, '0.0') addresses = await account1.receiving.get_addresses() txids = await asyncio.gather(*( self.blockchain.send_to_address(address, 1.1) for address in addresses[:5] )) await asyncio.wait([self.on_transaction_id(txid) for txid in txids]) # mempool await self.blockchain.generate(1) await asyncio.wait([self.on_transaction_id(txid) for txid in txids]) # confirmed await self.assertBalance(account1, '5.5') await self.assertBalance(account2, '0.0') address2 = await account2.receiving.get_or_create_usable_address() tx = await Transaction.create( [], [Output.pay_pubkey_hash( coins_to_satoshis('2.0'), self.ledger.address_to_hash160(address2) )], [account1], account1 ) await self.broadcast(tx) await self.ledger.wait(tx) # mempool await self.blockchain.generate(1) await self.ledger.wait(tx) # confirmed await self.assertBalance(account1, '3.499802') await self.assertBalance(account2, '2.0') utxos = await self.account.get_utxos() tx = await Transaction.create( [Input.spend(utxos[0])], [], [account1], account1 ) await self.broadcast(tx) await self.ledger.wait(tx) # mempool await self.blockchain.generate(1) await self.ledger.wait(tx) # confirmed tx = (await account1.get_transactions(include_is_my_input=True, include_is_my_output=True))[1] self.assertEqual(satoshis_to_coins(tx.inputs[0].amount), '1.1') self.assertEqual(satoshis_to_coins(tx.inputs[1].amount), '1.1') self.assertEqual(satoshis_to_coins(tx.outputs[0].amount), '2.0') self.assertEqual(tx.outputs[0].get_address(self.ledger), address2) self.assertTrue(tx.outputs[0].is_internal_transfer) self.assertTrue(tx.outputs[1].is_internal_transfer) async def test_history_edge_cases(self): await self.blockchain.generate(300) await self.assertBalance(self.account, '0.0') address = await self.account.receiving.get_or_create_usable_address() # evil trick: mempool is unsorted on real life, but same order between python instances. reproduce it original_summary = self.conductor.spv_node.server.bp.mempool.transaction_summaries def random_summary(*args, **kwargs): summary = original_summary(*args, **kwargs) if summary and len(summary) > 2: ordered = summary.copy() while summary == ordered: random.shuffle(summary) return summary self.conductor.spv_node.server.bp.mempool.transaction_summaries = random_summary # 10 unconfirmed txs, all from blockchain wallet sends = [self.blockchain.send_to_address(address, 10) for _ in range(10)] # use batching to reduce issues with send_to_address on cli for batch in range(0, len(sends), 10): txids = await asyncio.gather(*sends[batch:batch + 10]) await asyncio.wait([self.on_transaction_id(txid) for txid in txids]) remote_status = await self.ledger.network.subscribe_address(address) self.assertTrue(await self.ledger.update_history(address, remote_status)) # 20 unconfirmed txs, 10 from blockchain, 10 from local to local utxos = await self.account.get_utxos() txs = [] for utxo in utxos: tx = await Transaction.create( [Input.spend(utxo)], [], [self.account], self.account ) await self.broadcast(tx) txs.append(tx) await asyncio.wait([self.on_transaction_address(tx, address) for tx in txs], timeout=1) remote_status = await self.ledger.network.subscribe_address(address) self.assertTrue(await self.ledger.update_history(address, remote_status)) # server history grows unordered txid = await self.blockchain.send_to_address(address, 1) await self.on_transaction_id(txid) self.assertTrue(await self.ledger.update_history(address, remote_status)) self.assertEqual(21, len((await self.ledger.get_local_status_and_history(address))[1])) self.assertEqual(0, len(self.ledger._known_addresses_out_of_sync)) def wait_for_txid(self, txid, address): return self.ledger.on_transaction.where( lambda e: e.tx.id == txid and e.address == address ) async def _test_transaction(self, send_amount, address, inputs, change): tx = await Transaction.create( [], [Output.pay_pubkey_hash(send_amount, self.ledger.address_to_hash160(address))], [self.account], self.account ) await self.ledger.broadcast(tx) input_amounts = [txi.amount for txi in tx.inputs] self.assertListEqual(inputs, input_amounts) self.assertEqual(len(inputs), len(tx.inputs)) self.assertEqual(2, len(tx.outputs)) self.assertEqual(send_amount, tx.outputs[0].amount) self.assertEqual(change, tx.outputs[1].amount) return tx async def assertSpendable(self, amounts): spendable = await self.ledger.db.get_spendable_utxos( self.ledger, 2000000000000, [self.account], set_reserved=False, return_insufficient_funds=True ) got_amounts = [estimator.effective_amount for estimator in spendable] self.assertListEqual(amounts, got_amounts) async def test_sqlite_coin_chooser(self): wallet_manager = WalletManager([self.wallet], {self.ledger.get_id(): self.ledger}) await self.blockchain.generate(300) await self.assertBalance(self.account, '0.0') address = await self.account.receiving.get_or_create_usable_address() other_account = self.wallet.generate_account(self.ledger) other_address = await other_account.receiving.get_or_create_usable_address() self.ledger.coin_selection_strategy = 'sqlite' await self.ledger.subscribe_account(self.account) txids = [] txids.append(await self.blockchain.send_to_address(address, 1.0)) txids.append(await self.blockchain.send_to_address(address, 1.0)) txids.append(await self.blockchain.send_to_address(address, 3.0)) txids.append(await self.blockchain.send_to_address(address, 5.0)) txids.append(await self.blockchain.send_to_address(address, 10.0)) await asyncio.wait([self.wait_for_txid(txid, address) for txid in txids], timeout=1) await self.assertBalance(self.account, '20.0') await self.assertSpendable([99992600, 99992600, 299992600, 499992600, 999992600]) # send 1.5 lbc first_tx = await Transaction.create( [], [Output.pay_pubkey_hash(150000000, self.ledger.address_to_hash160(other_address))], [self.account], self.account ) self.assertEqual(2, len(first_tx.inputs)) self.assertEqual(2, len(first_tx.outputs)) self.assertEqual(100000000, first_tx.inputs[0].amount) self.assertEqual(100000000, first_tx.inputs[1].amount) self.assertEqual(150000000, first_tx.outputs[0].amount) self.assertEqual(49980200, first_tx.outputs[1].amount) await self.assertBalance(self.account, '18.0') await self.assertSpendable([299992600, 499992600, 999992600]) await wallet_manager.broadcast_or_release(first_tx, blocking=True) await self.assertSpendable([49972800, 299992600, 499992600, 999992600]) # 0.499, 3.0, 5.0, 10.0 await self.assertBalance(self.account, '18.499802') # send 1.5lbc again second_tx = await self._test_transaction(150000000, other_address, [49980200, 300000000], 199960400) await self.assertSpendable([499992600, 999992600]) # replicate cancelling the api call after the tx broadcast while ledger.wait'ing it e = asyncio.Event() real_broadcast = self.ledger.broadcast async def broadcast(tx): try: return await real_broadcast(tx) finally: e.set() self.ledger.broadcast = broadcast broadcast_task = asyncio.create_task(wallet_manager.broadcast_or_release(second_tx, blocking=True)) # wait for the broadcast to finish await e.wait() # cancel the api call broadcast_task.cancel() with self.assertRaises(asyncio.CancelledError): await broadcast_task # test if sending another 1.5 lbc will try to double spend the inputs from the cancelled tx tx1 = await self._test_transaction(150000000, other_address, [500000000], 349987600) await self.ledger.wait(tx1, timeout=1) # wait for the cancelled transaction too, so that it's in the database # needed to keep everything deterministic await self.ledger.wait(second_tx, timeout=1) await self.assertSpendable([199953000, 349980200, 999992600]) # spend deep into the mempool and see what else breaks tx2 = await self._test_transaction(150000000, other_address, [199960400], 49948000) await self.assertSpendable([349980200, 999992600]) await self.ledger.wait(tx2, timeout=1) await self.assertSpendable([49940600, 349980200, 999992600]) tx3 = await self._test_transaction(150000000, other_address, [49948000, 349987600], 249915800) await self.assertSpendable([999992600]) await self.ledger.wait(tx3, timeout=1) await self.assertSpendable([249908400, 999992600]) tx4 = await self._test_transaction(150000000, other_address, [249915800], 99903400) await self.assertSpendable([999992600]) await self.ledger.wait(tx4, timeout=1) await self.assertBalance(self.account, '10.999034') await self.assertSpendable([99896000, 999992600]) # spend more tx5 = await self._test_transaction(100000000, other_address, [99903400, 1000000000], 999883600) await self.assertSpendable([]) await self.ledger.wait(tx5, timeout=1) await self.assertSpendable([999876200]) await self.assertBalance(self.account, '9.998836')