def test_bip68_not_consensus(self): assert (get_bip9_status(self.nodes[0], 'csv')['status'] != 'active') txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 2) tx1 = from_hex(CTransaction(), self.nodes[0].getrawtransaction(txid)) tx1.rehash() # Make an anyone-can-spend transaction tx2 = CTransaction() tx2.nVersion = 1 tx2.vin = [CTxIn(COutPoint(tx1.x16r, 0), n_sequence=0)] tx2.vout = [ CTxOut(int(tx1.vout[0].nValue - self.relayfee * COIN), CScript([b'a'])) ] # sign tx2 tx2_raw = self.nodes[0].signrawtransaction(to_hex(tx2))["hex"] tx2 = from_hex(tx2, tx2_raw) tx2.rehash() self.nodes[0].sendrawtransaction(to_hex(tx2)) # Now make an invalid spend of tx2 according to BIP68 sequence_value = 100 # 100 block relative locktime tx3 = CTransaction() tx3.nVersion = 2 tx3.vin = [CTxIn(COutPoint(tx2.x16r, 0), n_sequence=sequence_value)] tx3.vout = [ CTxOut(int(tx2.vout[0].nValue - self.relayfee * COIN), CScript([b'a'])) ] tx3.rehash() assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, to_hex(tx3)) # make a block that violates bip68; ensure that the tip updates tip = int(self.nodes[0].getbestblockhash(), 16) block = create_block( tip, create_coinbase(self.nodes[0].getblockcount() + 1)) block.nVersion = 3 block.vtx.extend([tx1, tx2, tx3]) block.hashMerkleRoot = block.calc_merkle_root() block.rehash() block.solve() self.nodes[0].submitblock(to_hex(block)) assert_equal(self.nodes[0].getbestblockhash(), block.hash)
def test_getblocktxn_handler(node, test_node, version): # Krond will not send blocktxn responses for blocks whose height is # more than 10 blocks deep. MAX_GETBLOCKTXN_DEPTH = 10 chain_height = node.getblockcount() current_height = chain_height while current_height >= chain_height - MAX_GETBLOCKTXN_DEPTH: block_hash = node.getblockhash(current_height) block = from_hex(CBlock(), node.getblock(block_hash, False)) msg = MsgGetBlockTxn() msg.block_txn_request = BlockTransactionsRequest( int(block_hash, 16), []) num_to_request = random.randint(1, len(block.vtx)) msg.block_txn_request.from_absolute( sorted(random.sample(range(len(block.vtx)), num_to_request))) test_node.send_message(msg) wait_until(lambda: "blocktxn" in test_node.last_message, timeout=10, lock=mininode_lock, err_msg="test_getblocktxn_handler") [tx.calc_x16r() for tx in block.vtx] with mininode_lock: assert_equal( test_node.last_message["blocktxn"].block_transactions. blockhash, int(block_hash, 16)) all_indices = msg.block_txn_request.to_absolute() for index in all_indices: tx = test_node.last_message[ "blocktxn"].block_transactions.transactions.pop(0) tx.calc_x16r() assert_equal(tx.sha256, block.vtx[index].sha256) if version == 1: # Witnesses should have been stripped assert (tx.wit.is_null()) else: # Check that the witness matches assert_equal(tx.calc_x16r(True), block.vtx[index].calc_x16r(True)) test_node.last_message.pop("blocktxn", None) current_height -= 1 # Next request should send a full block response, as we're past the # allowed depth for a blocktxn response. block_hash = node.getblockhash(current_height) # noinspection PyUnboundLocalVariable msg.block_txn_request = BlockTransactionsRequest( int(block_hash, 16), [0]) with mininode_lock: test_node.last_message.pop("block", None) test_node.last_message.pop("blocktxn", None) test_node.send_and_ping(msg) with mininode_lock: test_node.last_message["block"].block.calc_x16r() assert_equal(test_node.last_message["block"].block.sha256, int(block_hash, 16)) assert "blocktxn" not in test_node.last_message
def test_version2_relay(self): inputs = [] outputs = {self.nodes[1].getnewaddress(): 1.0} rawtx = self.nodes[1].createrawtransaction(inputs, outputs) rawtxfund = self.nodes[1].fundrawtransaction(rawtx)['hex'] tx = from_hex(CTransaction(), rawtxfund) tx.nVersion = 2 tx_signed = self.nodes[1].signrawtransaction(to_hex(tx))["hex"] self.nodes[1].sendrawtransaction(tx_signed)
def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""): tx_to_witness = create_witness_program(use_p2wsh, utxo, pubkey, encode_p2sh, amount) if sign: signed = node.signrawtransaction(tx_to_witness) assert ("errors" not in signed or len(["errors"]) == 0) return node.sendrawtransaction(signed["hex"]) else: if insert_redeem_script: tx = from_hex(CTransaction(), tx_to_witness) tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)]) tx_to_witness = to_hex(tx) return node.sendrawtransaction(tx_to_witness)
def test_compactblock_construction(self, node, test_node, version, use_witness_address): # Generate a bunch of transactions. node.generate(101) num_transactions = 25 address = node.getnewaddress() if use_witness_address: # Want at least one segwit spend, so move all funds to # a witness address. address = node.addwitnessaddress(address) value_to_send = node.getbalance() node.sendtoaddress(address, satoshi_round(value_to_send - Decimal(0.1))) node.generate(1) segwit_tx_generated = False for _ in range(num_transactions): txid = node.sendtoaddress(address, 0.1) hex_tx = node.gettransaction(txid)["hex"] tx = from_hex(CTransaction(), hex_tx) if not tx.wit.is_null(): segwit_tx_generated = True if use_witness_address: assert segwit_tx_generated # check that our test is not broken # Wait until we've seen the block announcement for the resulting tip tip = int(node.getbestblockhash(), 16) test_node.wait_for_block_announcement(tip) # Make sure we will receive a fast-announce compact block self.request_cb_announcements(test_node, node, version) # Now mine a block, and look at the resulting compact block. test_node.clear_block_announcement() block_hash = int(node.generate(1)[0], 16) # Store the raw block in our internal format. block = from_hex(CBlock(), node.getblock("%02x" % block_hash, False)) for tx in block.vtx: tx.calc_x16r() block.rehash() # Wait until the block was announced (via compact blocks) wait_until(test_node.received_block_announcement, timeout=30, lock=mininode_lock, err_msg="test_node.received_block_announcement") # Now fetch and check the compact block with mininode_lock: assert ("cmpctblock" in test_node.last_message) # Convert the on-the-wire representation to absolute indexes header_and_shortids = HeaderAndShortIDs( test_node.last_message["cmpctblock"].header_and_shortids) self.check_compactblock_construction_from_block( version, header_and_shortids, block_hash, block) # Now fetch the compact block using a normal non-announce getdata with mininode_lock: test_node.clear_block_announcement() inv = CInv(4, block_hash) # 4 == "CompactBlock" test_node.send_message(MsgGetdata([inv])) wait_until(test_node.received_block_announcement, timeout=30, lock=mininode_lock, err_msg="test_node.received_block_announcement") # Now fetch and check the compact block with mininode_lock: assert ("cmpctblock" in test_node.last_message) # Convert the on-the-wire representation to absolute indexes header_and_shortids = HeaderAndShortIDs( test_node.last_message["cmpctblock"].header_and_shortids) self.check_compactblock_construction_from_block( version, header_and_shortids, block_hash, block)
def run_test(self): self.nodes[0].generate(161) #block 161 # self.log.info("Verify sigops are counted in GBT with pre-BIP141 rules before the fork") # txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1) # tmpl = self.nodes[0].getblocktemplate({}) # assert(tmpl['sizelimit'] == 1000000) # assert('weightlimit' not in tmpl) # assert(tmpl['sigoplimit'] == 20000) # assert(tmpl['transactions'][0]['hash'] == txid) # assert(tmpl['transactions'][0]['sigops'] == 2) # tmpl = self.nodes[0].getblocktemplate({'rules':['segwit']}) # assert(tmpl['sizelimit'] == 1000000) # assert('weightlimit' not in tmpl) # assert(tmpl['sigoplimit'] == 20000) # assert(tmpl['transactions'][0]['hash'] == txid) # assert(tmpl['transactions'][0]['sigops'] == 2) self.nodes[0].generate(1) #block 162 balance_presetup = self.nodes[0].getbalance() self.pubkey = [] p2sh_ids = [ ] # p2sh_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE embedded in p2sh wit_ids = [ ] # wit_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE via bare witness for i in range(3): newaddress = self.nodes[i].getnewaddress() self.pubkey.append( self.nodes[i].validateaddress(newaddress)["pubkey"]) multiaddress = self.nodes[i].addmultisigaddress( 1, [self.pubkey[-1]]) self.nodes[i].addwitnessaddress(newaddress) self.nodes[i].addwitnessaddress(multiaddress) p2sh_ids.append([]) wit_ids.append([]) for v in range(2): p2sh_ids[i].append([]) wit_ids[i].append([]) for i in range(5): for n in range(3): for v in range(2): wit_ids[n][v].append( send_to_witness(v, self.nodes[0], find_unspent(self.nodes[0], 5000), self.pubkey[n], False, Decimal("4999.9"))) p2sh_ids[n][v].append( send_to_witness(v, self.nodes[0], find_unspent(self.nodes[0], 5000), self.pubkey[n], True, Decimal("4999.9"))) self.nodes[0].generate(1) #block 163 sync_blocks(self.nodes) # Make sure all nodes recognize the transactions as theirs assert_equal( self.nodes[0].getbalance(), balance_presetup - 60 * 5000 + 20 * Decimal("4999.9") + 5000) assert_equal(self.nodes[1].getbalance(), 20 * Decimal("4999.9")) assert_equal(self.nodes[2].getbalance(), 20 * Decimal("4999.9")) self.nodes[0].generate(260) #block 423 sync_blocks(self.nodes) # unsigned, no scriptsig self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", wit_ids[NODE_0][WIT_V0][0], False) self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", wit_ids[NODE_0][WIT_V1][0], False) self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V0][0], False) self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V1][0], False) # unsigned with redeem script self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V0][0], False, witness_script(False, self.pubkey[0])) self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V1][0], False, witness_script(True, self.pubkey[0])) # signed # self.fail_accept(self.nodes[0], "no-witness-yet", wit_ids[NODE_0][WIT_V0][0], True) # self.fail_accept(self.nodes[0], "no-witness-yet", wit_ids[NODE_0][WIT_V1][0], True) # self.fail_accept(self.nodes[0], "no-witness-yet", p2sh_ids[NODE_0][WIT_V0][0], True) # self.fail_accept(self.nodes[0], "no-witness-yet", p2sh_ids[NODE_0][WIT_V1][0], True) # self.log.info("Verify witness txs are skipped for mining before the fork") # self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][0], True) #block 424 # self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][0], True) #block 425 # self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][0], True) #block 426 # self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][0], True) #block 427 # TODO: An old node would see these txs without witnesses and be able to mine them self.log.info( "Verify unsigned bare witness txs in versionbits-setting blocks are valid before the fork" ) self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][1], False) #block 428 self.success_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][1], False) #block 429 self.log.info( "Verify unsigned p2sh witness txs without a redeem script are invalid" ) self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V0][1], False) self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V1][1], False) self.log.info( "Verify unsigned p2sh witness txs with a redeem script in versionbits-settings blocks are valid before the fork" ) self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][1], False, witness_script(False, self.pubkey[2])) #block 430 self.success_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][1], False, witness_script(True, self.pubkey[2])) #block 431 self.log.info( "Verify previous witness txs skipped for mining can now be mined") assert_equal(len(self.nodes[2].getrawmempool()), 4) block = self.nodes[2].generate( 1) #block 432 (first block with new rules: 432 = 144 * 3) sync_blocks(self.nodes) assert_equal(len(self.nodes[2].getrawmempool()), 0) segwit_tx_list = self.nodes[2].getblock(block[0])["tx"] assert_equal(len(segwit_tx_list), 5) self.log.info( "Verify block and transaction serialization rpcs return differing serializations depending on rpc serialization flag" ) assert (self.nodes[2].getblock(block[0], False) != self.nodes[0].getblock(block[0], False)) assert (self.nodes[1].getblock(block[0], False) == self.nodes[2].getblock( block[0], False)) for i in range(len(segwit_tx_list)): tx = from_hex( CTransaction(), self.nodes[2].gettransaction(segwit_tx_list[i])["hex"]) assert (self.nodes[2].getrawtransaction(segwit_tx_list[i]) != self.nodes[0].getrawtransaction(segwit_tx_list[i])) assert (self.nodes[1].getrawtransaction( segwit_tx_list[i], 0) == self.nodes[2].getrawtransaction(segwit_tx_list[i])) assert (self.nodes[0].getrawtransaction(segwit_tx_list[i]) != self.nodes[2].gettransaction(segwit_tx_list[i])["hex"]) assert (self.nodes[1].getrawtransaction( segwit_tx_list[i]) == self.nodes[2].gettransaction( segwit_tx_list[i])["hex"]) assert (self.nodes[0].getrawtransaction( segwit_tx_list[i]) == bytes_to_hex_str( tx.serialize_without_witness())) self.log.info( "Verify witness txs without witness data are invalid after the fork" ) self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][2], False) self.fail_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][2], False) self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][2], False, witness_script(False, self.pubkey[2])) self.fail_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][2], False, witness_script(True, self.pubkey[2])) self.log.info("Verify default node can now use witness txs") self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True) #block 432 self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True) #block 433 self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True) #block 434 self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True) #block 435 self.log.info( "Verify sigops are counted in GBT with BIP141 rules after the fork" ) txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1) tmpl = self.nodes[0].getblocktemplate({'rules': ['segwit']}) assert ( tmpl['sizelimit'] >= 3999577 ) # actual maximum size is lower due to minimum mandatory non-witness data assert (tmpl['weightlimit'] == 4000000) assert (tmpl['sigoplimit'] == 80000) assert (tmpl['transactions'][0]['txid'] == txid) assert (tmpl['transactions'][0]['sigops'] == 8) self.nodes[0].generate(1) # Mine a block to clear the gbt cache self.log.info( "Non-segwit miners are able to use GBT response after activation.") # Create a 3-tx chain: tx1 (non-segwit input, paying to a segwit output) -> # tx2 (segwit input, paying to a non-segwit output) -> # tx3 (non-segwit input, paying to a non-segwit output). # tx1 is allowed to appear in the block, but no others. txid1 = send_to_witness(1, self.nodes[0], find_unspent(self.nodes[0], 50), self.pubkey[0], False, Decimal("49.996")) hex_tx = self.nodes[0].gettransaction(txid)['hex'] tx = from_hex(CTransaction(), hex_tx) assert (tx.wit.is_null()) # This should not be a segwit input assert (txid1 in self.nodes[0].getrawmempool()) # Now create tx2, which will spend from txid1. tx = CTransaction() tx.vin.append(CTxIn(COutPoint(int(txid1, 16), 0), b'')) tx.vout.append(CTxOut(int(49.99 * COIN), CScript([OP_TRUE]))) tx2_hex = self.nodes[0].signrawtransaction(to_hex(tx))['hex'] txid2 = self.nodes[0].sendrawtransaction(tx2_hex) tx = from_hex(CTransaction(), tx2_hex) assert (not tx.wit.is_null()) # Now create tx3, which will spend from txid2 tx = CTransaction() tx.vin.append(CTxIn(COutPoint(int(txid2, 16), 0), b"")) tx.vout.append(CTxOut(int(49.95 * COIN), CScript([OP_TRUE]))) # Huge fee tx.calc_x16r() txid3 = self.nodes[0].sendrawtransaction(to_hex(tx)) assert (tx.wit.is_null()) assert (txid3 in self.nodes[0].getrawmempool()) # Now try calling getblocktemplate() without segwit support. template = self.nodes[0].getblocktemplate() # Check that tx1 is the only transaction of the 3 in the template. template_txids = [t['txid'] for t in template['transactions']] assert (txid2 not in template_txids and txid3 not in template_txids) assert (txid1 in template_txids) # Check that running with segwit support results in all 3 being included. template = self.nodes[0].getblocktemplate({"rules": ["segwit"]}) template_txids = [t['txid'] for t in template['transactions']] assert (txid1 in template_txids) assert (txid2 in template_txids) assert (txid3 in template_txids) # Check that wtxid is properly reported in mempool entry assert_equal(int(self.nodes[0].getmempoolentry(txid3)["wtxid"], 16), tx.calc_x16r(True)) # Mine a block to clear the gbt cache again. self.nodes[0].generate(1) self.log.info( "Verify behaviour of importaddress, addwitnessaddress and listunspent" ) # Some public keys to be used later pubkeys = [ "0363D44AABD0F1699138239DF2F042C3282C0671CC7A76826A55C8203D90E39242", # cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb "02D3E626B3E616FC8662B489C123349FECBFC611E778E5BE739B257EAE4721E5BF", # cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97 "04A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538A62F5BD8EC85C2477F39650BD391EA6250207065B2A81DA8B009FC891E898F0E", # 91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV "02A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538", # cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd "036722F784214129FEB9E8129D626324F3F6716555B603FFE8300BBCB882151228", # cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66 "0266A8396EE936BF6D99D17920DB21C6C7B1AB14C639D5CD72B300297E416FD2EC", # cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K "0450A38BD7F0AC212FEBA77354A9B036A32E0F7C81FC4E0C5ADCA7C549C4505D2522458C2D9AE3CEFD684E039194B72C8A10F9CB9D4764AB26FCC2718D421D3B84", # 92h2XPssjBpsJN5CqSP7v9a7cf2kgDunBC6PDFwJHMACM1rrVBJ ] # Import a compressed key and an uncompressed key, generate some multisig addresses self.nodes[0].importprivkey( "92e6XLo5jVAVwrQKPNTs93oQco8f8sDNBcpv73Dsrs397fQtFQn") uncompressed_spendable_address = ["mvozP4UwyGD2mGZU4D2eMvMLPB9WkMmMQu"] self.nodes[0].importprivkey( "cNC8eQ5dg3mFAVePDX4ddmPYpPbw41r9bm2jd1nLJT77e6RrzTRR") compressed_spendable_address = ["mmWQubrDomqpgSYekvsU7HWEVjLFHAakLe"] assert (self.nodes[0].validateaddress( uncompressed_spendable_address[0])['iscompressed'] == False) assert (self.nodes[0].validateaddress( compressed_spendable_address[0])['iscompressed'] == True) self.nodes[0].importpubkey(pubkeys[0]) compressed_solvable_address = [key_to_p2pkh(pubkeys[0])] self.nodes[0].importpubkey(pubkeys[1]) compressed_solvable_address.append(key_to_p2pkh(pubkeys[1])) self.nodes[0].importpubkey(pubkeys[2]) uncompressed_solvable_address = [key_to_p2pkh(pubkeys[2])] spendable_anytime = [ ] # These outputs should be seen anytime after importprivkey and addmultisigaddress spendable_after_importaddress = [ ] # These outputs should be seen after importaddress solvable_after_importaddress = [ ] # These outputs should be seen after importaddress but not spendable unsolvable_after_importaddress = [ ] # These outputs should be unsolvable after importaddress solvable_anytime = [ ] # These outputs should be solvable after importpubkey unseen_anytime = [] # These outputs should never be seen uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [ uncompressed_spendable_address[0], compressed_spendable_address[0] ])) uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [ uncompressed_spendable_address[0], uncompressed_spendable_address[0] ])) compressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_spendable_address[0], compressed_spendable_address[0] ])) uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress( 2, [ compressed_spendable_address[0], uncompressed_solvable_address[0] ])) compressed_solvable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_spendable_address[0], compressed_solvable_address[0]])) compressed_solvable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_solvable_address[0], compressed_solvable_address[1]])) unknown_address = [ "mtKKyoHabkk6e4ppT7NaM7THqPUt7AzPrT", "2NDP3jLWAFT8NDAiUa9qiE6oBt2awmMq7Dx" ] # Test multisig_without_privkey # We have 2 public keys without private keys, use addmultisigaddress to add to wallet. # Money sent to P2SH of multisig of this should only be seen after importaddress with the BASE58 P2SH address. multisig_without_privkey_address = self.nodes[0].addmultisigaddress( 2, [pubkeys[3], pubkeys[4]]) script = CScript([ OP_2, hex_str_to_bytes(pubkeys[3]), hex_str_to_bytes(pubkeys[4]), OP_2, OP_CHECKMULTISIG ]) solvable_after_importaddress.append( CScript([OP_HASH160, hash160(script), OP_EQUAL])) for i in compressed_spendable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) # bare and p2sh multisig with compressed keys should always be spendable spendable_anytime.extend([bare, p2sh]) # P2WSH and P2SH(P2WSH) multisig with compressed keys are spendable after direct importaddress spendable_after_importaddress.extend([p2wsh, p2sh_p2wsh]) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # normal P2PKH and P2PK with compressed keys should always be spendable spendable_anytime.extend([p2pkh, p2pk]) # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are spendable after direct importaddress spendable_after_importaddress.extend([ p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ]) for i in uncompressed_spendable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) # bare and p2sh multisig with uncompressed keys should always be spendable spendable_anytime.extend([bare, p2sh]) # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen unseen_anytime.extend([p2wsh, p2sh_p2wsh]) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # normal P2PKH and P2PK with uncompressed keys should always be spendable spendable_anytime.extend([p2pkh, p2pk]) # P2SH_P2PK and P2SH_P2PKH are spendable after direct importaddress spendable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh]) # witness with uncompressed keys are never seen unseen_anytime.extend([ p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ]) for i in compressed_solvable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: # Multisig without private is not seen after addmultisigaddress, but seen after importaddress [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) solvable_after_importaddress.extend( [bare, p2sh, p2wsh, p2sh_p2wsh]) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # normal P2PKH and P2PK with compressed keys should always be seen solvable_anytime.extend([p2pkh, p2pk]) # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are seen after direct importaddress solvable_after_importaddress.extend([ p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ]) for i in uncompressed_solvable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) # Base uncompressed multisig without private is not seen after addmultisigaddress, but seen after importaddress solvable_after_importaddress.extend([bare, p2sh]) # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen unseen_anytime.extend([p2wsh, p2sh_p2wsh]) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # normal P2PKH and P2PK with uncompressed keys should always be seen solvable_anytime.extend([p2pkh, p2pk]) # P2SH_P2PK, P2SH_P2PKH with uncompressed keys are seen after direct importaddress solvable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh]) # witness with uncompressed keys are never seen unseen_anytime.extend([ p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ]) op1 = CScript([OP_1]) op0 = CScript([OP_0]) # 2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe is the P2SH(P2PKH) version of mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V unsolvable_address = [ "mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V", "2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe", script_to_p2sh(op1), script_to_p2sh(op0) ] unsolvable_address_key = hex_str_to_bytes( "02341AEC7587A51CDE5279E0630A531AEA2615A9F80B17E8D9376327BAEAA59E3D" ) unsolvablep2pkh = CScript([ OP_DUP, OP_HASH160, hash160(unsolvable_address_key), OP_EQUALVERIFY, OP_CHECKSIG ]) unsolvablep2wshp2pkh = CScript([OP_0, sha256(unsolvablep2pkh)]) p2shop0 = CScript([OP_HASH160, hash160(op0), OP_EQUAL]) p2wshop1 = CScript([OP_0, sha256(op1)]) unsolvable_after_importaddress.append(unsolvablep2pkh) unsolvable_after_importaddress.append(unsolvablep2wshp2pkh) unsolvable_after_importaddress.append( op1) # OP_1 will be imported as script unsolvable_after_importaddress.append(p2wshop1) unseen_anytime.append( op0 ) # OP_0 will be imported as P2SH address with no script provided unsolvable_after_importaddress.append(p2shop0) spendable_txid = [] solvable_txid = [] spendable_txid.append( self.mine_and_test_listunspent(spendable_anytime, 2)) solvable_txid.append( self.mine_and_test_listunspent(solvable_anytime, 1)) self.mine_and_test_listunspent( spendable_after_importaddress + solvable_after_importaddress + unseen_anytime + unsolvable_after_importaddress, 0) importlist = [] for i in compressed_spendable_address + uncompressed_spendable_address + compressed_solvable_address + uncompressed_solvable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: bare = hex_str_to_bytes(v['hex']) importlist.append(bytes_to_hex_str(bare)) importlist.append( bytes_to_hex_str(CScript([OP_0, sha256(bare)]))) else: pubkey = hex_str_to_bytes(v['pubkey']) p2pk = CScript([pubkey, OP_CHECKSIG]) p2pkh = CScript([ OP_DUP, OP_HASH160, hash160(pubkey), OP_EQUALVERIFY, OP_CHECKSIG ]) importlist.append(bytes_to_hex_str(p2pk)) importlist.append(bytes_to_hex_str(p2pkh)) importlist.append( bytes_to_hex_str(CScript([OP_0, hash160(pubkey)]))) importlist.append( bytes_to_hex_str(CScript([OP_0, sha256(p2pk)]))) importlist.append( bytes_to_hex_str(CScript([OP_0, sha256(p2pkh)]))) importlist.append(bytes_to_hex_str(unsolvablep2pkh)) importlist.append(bytes_to_hex_str(unsolvablep2wshp2pkh)) importlist.append(bytes_to_hex_str(op1)) importlist.append(bytes_to_hex_str(p2wshop1)) for i in importlist: # import all generated addresses. The wallet already has the private keys for some of these, so catch JSON RPC # exceptions and continue. try_rpc( -4, "The wallet already contains the private key for this address or script", self.nodes[0].importaddress, i, "", False, True) self.nodes[0].importaddress( script_to_p2sh(op0)) # import OP_0 as address only self.nodes[0].importaddress( multisig_without_privkey_address) # Test multisig_without_privkey spendable_txid.append( self.mine_and_test_listunspent( spendable_anytime + spendable_after_importaddress, 2)) solvable_txid.append( self.mine_and_test_listunspent( solvable_anytime + solvable_after_importaddress, 1)) self.mine_and_test_listunspent(unsolvable_after_importaddress, 1) self.mine_and_test_listunspent(unseen_anytime, 0) # addwitnessaddress should refuse to return a witness address if an uncompressed key is used # note that no witness address should be returned by unsolvable addresses for i in uncompressed_spendable_address + uncompressed_solvable_address + unknown_address + unsolvable_address: assert_raises_rpc_error( -4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i) # addwitnessaddress should return a witness addresses even if keys are not in the wallet self.nodes[0].addwitnessaddress(multisig_without_privkey_address) for i in compressed_spendable_address + compressed_solvable_address: witaddress = self.nodes[0].addwitnessaddress(i) # addwitnessaddress should return the same address if it is a known P2SH-witness address assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress)) spendable_txid.append( self.mine_and_test_listunspent( spendable_anytime + spendable_after_importaddress, 2)) solvable_txid.append( self.mine_and_test_listunspent( solvable_anytime + solvable_after_importaddress, 1)) self.mine_and_test_listunspent(unsolvable_after_importaddress, 1) self.mine_and_test_listunspent(unseen_anytime, 0) # Repeat some tests. This time we don't add witness scripts with importaddress # Import a compressed key and an uncompressed key, generate some multisig addresses self.nodes[0].importprivkey( "927pw6RW8ZekycnXqBQ2JS5nPyo1yRfGNN8oq74HeddWSpafDJH") uncompressed_spendable_address = ["mguN2vNSCEUh6rJaXoAVwY3YZwZvEmf5xi"] self.nodes[0].importprivkey( "cMcrXaaUC48ZKpcyydfFo8PxHAjpsYLhdsp6nmtB3E2ER9UUHWnw") compressed_spendable_address = ["n1UNmpmbVUJ9ytXYXiurmGPQ3TRrXqPWKL"] self.nodes[0].importpubkey(pubkeys[5]) compressed_solvable_address = [key_to_p2pkh(pubkeys[5])] self.nodes[0].importpubkey(pubkeys[6]) uncompressed_solvable_address = [key_to_p2pkh(pubkeys[6])] spendable_after_addwitnessaddress = [ ] # These outputs should be seen after importaddress solvable_after_addwitnessaddress = [ ] # These outputs should be seen after importaddress but not spendable unseen_anytime = [] # These outputs should never be seen uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [ uncompressed_spendable_address[0], compressed_spendable_address[0] ])) uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [ uncompressed_spendable_address[0], uncompressed_spendable_address[0] ])) compressed_spendable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_spendable_address[0], compressed_spendable_address[0] ])) uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_solvable_address[0], uncompressed_solvable_address[0] ])) compressed_solvable_address.append(self.nodes[0].addmultisigaddress( 2, [compressed_spendable_address[0], compressed_solvable_address[0]])) premature_witaddress = [] for i in compressed_spendable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) # P2WSH and P2SH(P2WSH) multisig with compressed keys are spendable after addwitnessaddress spendable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh]) premature_witaddress.append(script_to_p2sh(p2wsh)) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # P2WPKH, P2SH_P2WPKH are spendable after addwitnessaddress spendable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh]) premature_witaddress.append(script_to_p2sh(p2wpkh)) for i in uncompressed_spendable_address + uncompressed_solvable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) # P2WSH and P2SH(P2WSH) multisig with uncompressed keys are never seen unseen_anytime.extend([p2wsh, p2sh_p2wsh]) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # P2WPKH, P2SH_P2WPKH with uncompressed keys are never seen unseen_anytime.extend([p2wpkh, p2sh_p2wpkh]) for i in compressed_solvable_address: v = self.nodes[0].validateaddress(i) if v['isscript']: # P2WSH multisig without private key are seen after addwitnessaddress [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v) solvable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh]) premature_witaddress.append(script_to_p2sh(p2wsh)) else: [ p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh ] = self.p2pkh_address_to_script(v) # P2SH_P2PK, P2SH_P2PKH with compressed keys are seen after addwitnessaddress solvable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh]) premature_witaddress.append(script_to_p2sh(p2wpkh)) self.mine_and_test_listunspent( spendable_after_addwitnessaddress + solvable_after_addwitnessaddress + unseen_anytime, 0) # addwitnessaddress should refuse to return a witness address if an uncompressed key is used # note that a multisig address returned by addmultisigaddress is not solvable until it is added with importaddress # premature_witaddress are not accepted until the script is added with addwitnessaddress first for i in uncompressed_spendable_address + uncompressed_solvable_address + premature_witaddress: # This will raise an exception assert_raises_rpc_error( -4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i) # after importaddress it should pass addwitnessaddress v = self.nodes[0].validateaddress(compressed_solvable_address[1]) self.nodes[0].importaddress(v['hex'], "", False, True) for i in compressed_spendable_address + compressed_solvable_address + premature_witaddress: witaddress = self.nodes[0].addwitnessaddress(i) assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress)) spendable_txid.append( self.mine_and_test_listunspent(spendable_after_addwitnessaddress, 2)) solvable_txid.append( self.mine_and_test_listunspent(solvable_after_addwitnessaddress, 1)) self.mine_and_test_listunspent(unseen_anytime, 0) # Check that spendable outputs are really spendable self.create_and_mine_tx_from_txids(spendable_txid) # import all the private keys so solvable addresses become spendable self.nodes[0].importprivkey( "cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb") self.nodes[0].importprivkey( "cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97") self.nodes[0].importprivkey( "91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV") self.nodes[0].importprivkey( "cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd") self.nodes[0].importprivkey( "cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66") self.nodes[0].importprivkey( "cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K") self.create_and_mine_tx_from_txids(solvable_txid)
def test_sequence_lock_unconfirmed_inputs(self): # Store height so we can easily reset the chain at the end of the test cur_height = self.nodes[0].getblockcount() # Create a mempool tx. txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 2) tx1 = from_hex(CTransaction(), self.nodes[0].getrawtransaction(txid)) tx1.rehash() # Anyone-can-spend mempool tx. # Sequence lock of 0 should pass. tx2 = CTransaction() tx2.nVersion = 2 tx2.vin = [CTxIn(COutPoint(tx1.x16r, 0), n_sequence=0)] tx2.vout = [ CTxOut(int(tx1.vout[0].nValue - self.relayfee * COIN), CScript([b'a'])) ] tx2_raw = self.nodes[0].signrawtransaction(to_hex(tx2))["hex"] tx2 = from_hex(tx2, tx2_raw) tx2.rehash() self.nodes[0].sendrawtransaction(tx2_raw) # Create a spend of the 0th output of orig_tx with a sequence lock # of 1, and test what happens when submitting. # orig_tx.vout[0] must be an anyone-can-spend output def test_nonzero_locks(orig_tx, node, relayfee, use_height_lock): sequence_value = 1 if not use_height_lock: sequence_value |= SEQUENCE_LOCKTIME_TYPE_FLAG tx = CTransaction() tx.nVersion = 2 tx.vin = [ CTxIn(COutPoint(orig_tx.x16r, 0), n_sequence=sequence_value) ] tx.vout = [ CTxOut(int(orig_tx.vout[0].nValue - relayfee * COIN), CScript([b'a'])) ] tx.rehash() if orig_tx.hash in node.getrawmempool(): # sendrawtransaction should fail if the tx is in the mempool assert_raises_rpc_error(-26, NOT_FINAL_ERROR, node.sendrawtransaction, to_hex(tx)) else: # sendrawtransaction should succeed if the tx is not in the mempool node.sendrawtransaction(to_hex(tx)) return tx test_nonzero_locks(tx2, self.nodes[0], self.relayfee, use_height_lock=True) test_nonzero_locks(tx2, self.nodes[0], self.relayfee, use_height_lock=False) # Now mine some blocks, but make sure tx2 doesn't get mined. # Use prioritisetransaction to lower the effective feerate to 0 self.nodes[0].prioritisetransaction(txid=tx2.hash, fee_delta=int(-self.relayfee * COIN)) cur_time = int(time.time()) for _ in range(10): self.nodes[0].setmocktime(cur_time + 600) self.nodes[0].generate(1) cur_time += 600 assert (tx2.hash in self.nodes[0].getrawmempool()) test_nonzero_locks(tx2, self.nodes[0], self.relayfee, use_height_lock=True) test_nonzero_locks(tx2, self.nodes[0], self.relayfee, use_height_lock=False) # Mine tx2, and then try again self.nodes[0].prioritisetransaction(txid=tx2.hash, fee_delta=int(self.relayfee * COIN)) # Advance the time on the node so that we can test timelocks self.nodes[0].setmocktime(cur_time + 600) self.nodes[0].generate(1) assert (tx2.hash not in self.nodes[0].getrawmempool()) # Now that tx2 is not in the mempool, a sequence locked spend should # succeed tx3 = test_nonzero_locks(tx2, self.nodes[0], self.relayfee, use_height_lock=False) assert (tx3.hash in self.nodes[0].getrawmempool()) self.nodes[0].generate(1) assert (tx3.hash not in self.nodes[0].getrawmempool()) # One more test, this time using height locks tx4 = test_nonzero_locks(tx3, self.nodes[0], self.relayfee, use_height_lock=True) assert (tx4.hash in self.nodes[0].getrawmempool()) # Now try combining confirmed and unconfirmed inputs tx5 = test_nonzero_locks(tx4, self.nodes[0], self.relayfee, use_height_lock=True) assert (tx5.hash not in self.nodes[0].getrawmempool()) utxos = self.nodes[0].listunspent() tx5.vin.append( CTxIn(COutPoint(int(utxos[0]["txid"], 16), utxos[0]["vout"]), n_sequence=1)) tx5.vout[0].nValue += int(utxos[0]["amount"] * COIN) raw_tx5 = self.nodes[0].signrawtransaction(to_hex(tx5))["hex"] assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, raw_tx5) # Test mempool-BIP68 consistency after reorg # # State of the transactions in the last blocks: # ... -> [ tx2 ] -> [ tx3 ] # tip-1 tip # And currently tx4 is in the mempool. # # If we invalidate the tip, tx3 should get added to the mempool, causing # tx4 to be removed (fails sequence-lock). self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) assert (tx4.hash not in self.nodes[0].getrawmempool()) assert (tx3.hash in self.nodes[0].getrawmempool()) # Now mine 2 empty blocks to reorg out the current tip (labeled tip-1 in # diagram above). # This would cause tx2 to be added back to the mempool, which in turn causes # tx3 to be removed. tip = int( self.nodes[0].getblockhash(self.nodes[0].getblockcount() - 1), 16) height = self.nodes[0].getblockcount() for _ in range(2): block = create_block(tip, create_coinbase(height), cur_time) block.nVersion = 3 block.rehash() block.solve() tip = block.x16r height += 1 self.nodes[0].submitblock(to_hex(block)) cur_time += 1 mempool = self.nodes[0].getrawmempool() assert (tx3.hash not in mempool) assert (tx2.hash in mempool) # Reset the chain and get rid of the mocktimed-blocks self.nodes[0].setmocktime(0) self.nodes[0].invalidateblock(self.nodes[0].getblockhash(cur_height + 1)) self.nodes[0].generate(10)
def run_test(self): # Mine some coins self.nodes[0].generate(110) # Get some addresses from the two nodes addr1 = [self.nodes[1].getnewaddress() for _ in range(3)] addr2 = [self.nodes[2].getnewaddress() for _ in range(3)] addrs = addr1 + addr2 # Send 1 + 0.5 coin to each address [self.nodes[0].sendtoaddress(addr, 1.0) for addr in addrs] [self.nodes[0].sendtoaddress(addr, 0.5) for addr in addrs] self.nodes[0].generate(1) self.sync_all() # For each node, send 0.2 coins back to 0; # - node[1] should pick one 0.5 UTXO and leave the rest # - node[2] should pick one (1.0 + 0.5) UTXO group corresponding to a # given address, and leave the rest txid1 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 0.2) tx1 = self.nodes[1].getrawtransaction(txid1, True) # txid1 should have 1 input and 2 outputs assert_equal(1, len(tx1["vin"])) assert_equal(2, len(tx1["vout"])) # one output should be 0.2, the other should be ~0.3 v = [vout["value"] for vout in tx1["vout"]] v.sort() assert_approx(v[0], 0.2) assert_approx(v[1], 0.3, 0.01) txid2 = self.nodes[2].sendtoaddress(self.nodes[0].getnewaddress(), 0.2) tx2 = self.nodes[2].getrawtransaction(txid2, True) # txid2 should have 1 inputs and 2 outputs assert_equal(1, len(tx2["vin"])) assert_equal(2, len(tx2["vout"])) # one output should be 0.2, the other should be ~0.3 v = [vout["value"] for vout in tx2["vout"]] v.sort() assert_approx(v[0], 0.2) assert_approx(v[1], 0.3, 0.1) # Empty out node2's wallet self.nodes[2].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=self.nodes[2].getbalance(), subtractfeefromamount=True) self.sync_all() self.nodes[0].generate(1) # Fill node2's wallet with 10000 outputs corresponding to the same # scriptPubKey for i in range(5): inputs = [{"txid": "0" * 64, "vout": 0}] outputs = {addr2[0]: 0.05} raw_tx = self.nodes[0].createrawtransaction(inputs, outputs) tx = from_hex(CTransaction(), raw_tx) tx.vin = [] tx.vout = [tx.vout[0]] * 2000 funded_tx = self.nodes[0].fundrawtransaction(to_hex(tx)) signed_tx = self.nodes[0].signrawtransaction(funded_tx['hex']) self.nodes[0].sendrawtransaction(signed_tx['hex']) self.nodes[0].generate(1) self.sync_all() # Check that we can create a transaction that only requires ~100 of our # utxos, without pulling in all outputs and creating a transaction that # is way too big. assert self.nodes[2].sendtoaddress(address=addr2[0], amount=5)