#!/usr/bin/env python3 # Copyright (c) 2015-2016 The Bitcoin Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. """Test activation of the first version bits soft fork. This soft fork will activate the following BIPS: BIP 68 - nSequence relative lock times BIP 112 - CHECKSEQUENCEVERIFY BIP 113 - MedianTimePast semantics for nLockTime regtest lock-in with 108/144 block signalling activation after a further 144 blocks mine 82 blocks whose coinbases will be used to generate inputs for our tests mine 61 blocks to transition from DEFINED to STARTED mine 144 blocks only 100 of which are signaling readiness in order to fail to change state this period mine 144 blocks with 108 signaling and verify STARTED->LOCKED_IN mine 140 blocks and seed block chain with the 82 inputs will use for our tests at height 572 mine 3 blocks and verify still at LOCKED_IN and test that enforcement has not triggered mine 1 block and test that enforcement has triggered (which triggers ACTIVE) Test BIP 113 is enforced Mine 4 blocks so next height is 580 and test BIP 68 is enforced for time and height Mine 1 block so next height is 581 and test BIP 68 now passes time but not height Mine 1 block so next height is 582 and test BIP 68 now passes time and height Test that BIP 112 is enforced Various transactions will be used to test that the BIPs rules are not enforced before the soft fork activates And that after the soft fork activates transactions pass and fail as they should according to the rules. For each BIP, transactions of versions 1 and 2 will be tested. ---------------- BIP 113: bip113tx - modify the nLocktime variable BIP 68: bip68txs - 16 txs with nSequence relative locktime of 10 with various bits set as per the relative_locktimes below BIP 112: bip112txs_vary_nSequence - 16 txs with nSequence relative_locktimes of 10 evaluated against 10 OP_CSV OP_DROP bip112txs_vary_nSequence_9 - 16 txs with nSequence relative_locktimes of 9 evaluated against 10 OP_CSV OP_DROP bip112txs_vary_OP_CSV - 16 txs with nSequence = 10 evaluated against varying {relative_locktimes of 10} OP_CSV OP_DROP bip112txs_vary_OP_CSV_9 - 16 txs with nSequence = 9 evaluated against varying {relative_locktimes of 10} OP_CSV OP_DROP bip112tx_special - test negative argument to OP_CSV """ from test_framework.test_framework import ComparisonTestFramework from test_framework.util import * from test_framework.mininode import ToHex, CTransaction, NetworkThread from test_framework.blocktools import create_coinbase, create_block from test_framework.comptool import TestInstance, TestManager from test_framework.script import * from io import BytesIO import time base_relative_locktime = 10 seq_disable_flag = 1<<31 seq_random_high_bit = 1<<25 seq_type_flag = 1<<22 seq_random_low_bit = 1<<18 # b31,b25,b22,b18 represent the 31st, 25th, 22nd and 18th bits respectively in the nSequence field # relative_locktimes[b31][b25][b22][b18] is a base_relative_locktime with the indicated bits set if their indices are 1 relative_locktimes = [] for b31 in range(2): b25times = [] for b25 in range(2): b22times = [] for b22 in range(2): b18times = [] for b18 in range(2): rlt = base_relative_locktime if (b31): rlt = rlt | seq_disable_flag if (b25): rlt = rlt | seq_random_high_bit if (b22): rlt = rlt | seq_type_flag if (b18): rlt = rlt | seq_random_low_bit b18times.append(rlt) b22times.append(b18times) b25times.append(b22times) relative_locktimes.append(b25times) def all_rlt_txs(txarray): txs = [] for b31 in range(2): for b25 in range(2): for b22 in range(2): for b18 in range(2): txs.append(txarray[b31][b25][b22][b18]) return txs class BIP68_112_113Test(ComparisonTestFramework): def __init__(self): super().__init__() self.num_nodes = 1 self.extra_args = [['-whitelist=127.0.0.1', '-blockversion=4']] def run_test(self): test = TestManager(self, self.options.tmpdir) test.add_all_connections(self.nodes) NetworkThread().start() # Start up network handling in another thread test.run() def send_generic_input_tx(self, node, coinbases): amount = Decimal("49.99") return node.sendrawtransaction(ToHex(self.sign_transaction(node, self.create_transaction(node, node.getblock(coinbases.pop())['tx'][0], self.nodeaddress, amount)))) def create_transaction(self, node, txid, to_address, amount): inputs = [{ "txid" : txid, "vout" : 0}] outputs = { to_address : amount } rawtx = node.createrawtransaction(inputs, outputs) tx = CTransaction() f = BytesIO(hex_str_to_bytes(rawtx)) tx.deserialize(f) return tx def sign_transaction(self, node, unsignedtx): rawtx = ToHex(unsignedtx) signresult = node.signrawtransaction(rawtx) tx = CTransaction() f = BytesIO(hex_str_to_bytes(signresult['hex'])) tx.deserialize(f) return tx def generate_blocks(self, number, version, test_blocks = []): for i in range(number): block = self.create_test_block([], version) test_blocks.append([block, True]) self.last_block_time += 600 self.tip = block.sha256 self.tipheight += 1 return test_blocks def create_test_block(self, txs, version = 536870912): block = create_block(self.tip, create_coinbase(self.tipheight + 1), self.last_block_time + 600) block.nVersion = version block.vtx.extend(txs) block.hashMerkleRoot = block.calc_merkle_root() block.rehash() block.solve() return block def create_bip68txs(self, bip68inputs, txversion, locktime_delta = 0): txs = [] assert(len(bip68inputs) >= 16) i = 0 for b31 in range(2): b25txs = [] for b25 in range(2): b22txs = [] for b22 in range(2): b18txs = [] for b18 in range(2): tx = self.create_transaction(self.nodes[0], bip68inputs[i], self.nodeaddress, Decimal("49.98")) i += 1 tx.nVersion = txversion tx.vin[0].nSequence = relative_locktimes[b31][b25][b22][b18] + locktime_delta b18txs.append(self.sign_transaction(self.nodes[0], tx)) b22txs.append(b18txs) b25txs.append(b22txs) txs.append(b25txs) return txs def create_bip112special(self, input, txversion): tx = self.create_transaction(self.nodes[0], input, self.nodeaddress, Decimal("49.98")) tx.nVersion = txversion signtx = self.sign_transaction(self.nodes[0], tx) signtx.vin[0].scriptSig = CScript([-1, OP_CHECKSEQUENCEVERIFY, OP_DROP] + list(CScript(signtx.vin[0].scriptSig))) return signtx def create_bip112txs(self, bip112inputs, varyOP_CSV, txversion, locktime_delta = 0): txs = [] assert(len(bip112inputs) >= 16) i = 0 for b31 in range(2): b25txs = [] for b25 in range(2): b22txs = [] for b22 in range(2): b18txs = [] for b18 in range(2): tx = self.create_transaction(self.nodes[0], bip112inputs[i], self.nodeaddress, Decimal("49.98")) i += 1 if (varyOP_CSV): # if varying OP_CSV, nSequence is fixed tx.vin[0].nSequence = base_relative_locktime + locktime_delta else: # vary nSequence instead, OP_CSV is fixed tx.vin[0].nSequence = relative_locktimes[b31][b25][b22][b18] + locktime_delta tx.nVersion = txversion signtx = self.sign_transaction(self.nodes[0], tx) if (varyOP_CSV): signtx.vin[0].scriptSig = CScript([relative_locktimes[b31][b25][b22][b18], OP_CHECKSEQUENCEVERIFY, OP_DROP] + list(CScript(signtx.vin[0].scriptSig))) else: signtx.vin[0].scriptSig = CScript([base_relative_locktime, OP_CHECKSEQUENCEVERIFY, OP_DROP] + list(CScript(signtx.vin[0].scriptSig))) b18txs.append(signtx) b22txs.append(b18txs) b25txs.append(b22txs) txs.append(b25txs) return txs def get_tests(self): long_past_time = int(time.time()) - 600 * 1000 # enough to build up to 1000 blocks 10 minutes apart without worrying about getting into the future self.nodes[0].setmocktime(long_past_time - 100) # enough so that the generated blocks will still all be before long_past_time self.coinbase_blocks = self.nodes[0].generate(1 + 16 + 2*32 + 1) # 82 blocks generated for inputs self.nodes[0].setmocktime(0) # set time back to present so yielded blocks aren't in the future as we advance last_block_time self.tipheight = 82 # height of the next block to build self.last_block_time = long_past_time self.tip = int("0x" + self.nodes[0].getbestblockhash(), 0) self.nodeaddress = self.nodes[0].getnewaddress() assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'defined') test_blocks = self.generate_blocks(61, 4) yield TestInstance(test_blocks, sync_every_block=False) # 1 # Advanced from DEFINED to STARTED, height = 143 assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'started') # Fail to achieve LOCKED_IN 100 out of 144 signal bit 0 # using a variety of bits to simulate multiple parallel softforks test_blocks = self.generate_blocks(50, 536870913) # 0x20000001 (signalling ready) test_blocks = self.generate_blocks(20, 4, test_blocks) # 0x00000004 (signalling not) test_blocks = self.generate_blocks(50, 536871169, test_blocks) # 0x20000101 (signalling ready) test_blocks = self.generate_blocks(24, 536936448, test_blocks) # 0x20010000 (signalling not) yield TestInstance(test_blocks, sync_every_block=False) # 2 # Failed to advance past STARTED, height = 287 assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'started') # 108 out of 144 signal bit 0 to achieve lock-in # using a variety of bits to simulate multiple parallel softforks test_blocks = self.generate_blocks(58, 536870913) # 0x20000001 (signalling ready) test_blocks = self.generate_blocks(26, 4, test_blocks) # 0x00000004 (signalling not) test_blocks = self.generate_blocks(50, 536871169, test_blocks) # 0x20000101 (signalling ready) test_blocks = self.generate_blocks(10, 536936448, test_blocks) # 0x20010000 (signalling not) yield TestInstance(test_blocks, sync_every_block=False) # 3 # Advanced from STARTED to LOCKED_IN, height = 431 assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'locked_in') # 140 more version 4 blocks test_blocks = self.generate_blocks(140, 4) yield TestInstance(test_blocks, sync_every_block=False) # 4 ### Inputs at height = 572 # Put inputs for all tests in the chain at height 572 (tip now = 571) (time increases by 600s per block) # Note we reuse inputs for v1 and v2 txs so must test these separately # 16 normal inputs bip68inputs = [] for i in range(16): bip68inputs.append(self.send_generic_input_tx(self.nodes[0], self.coinbase_blocks)) # 2 sets of 16 inputs with 10 OP_CSV OP_DROP (actually will be prepended to spending scriptSig) bip112basicinputs = [] for j in range(2): inputs = [] for i in range(16): inputs.append(self.send_generic_input_tx(self.nodes[0], self.coinbase_blocks)) bip112basicinputs.append(inputs) # 2 sets of 16 varied inputs with (relative_lock_time) OP_CSV OP_DROP (actually will be prepended to spending scriptSig) bip112diverseinputs = [] for j in range(2): inputs = [] for i in range(16): inputs.append(self.send_generic_input_tx(self.nodes[0], self.coinbase_blocks)) bip112diverseinputs.append(inputs) # 1 special input with -1 OP_CSV OP_DROP (actually will be prepended to spending scriptSig) bip112specialinput = self.send_generic_input_tx(self.nodes[0], self.coinbase_blocks) # 1 normal input bip113input = self.send_generic_input_tx(self.nodes[0], self.coinbase_blocks) self.nodes[0].setmocktime(self.last_block_time + 600) inputblockhash = self.nodes[0].generate(1)[0] # 1 block generated for inputs to be in chain at height 572 self.nodes[0].setmocktime(0) self.tip = int("0x" + inputblockhash, 0) self.tipheight += 1 self.last_block_time += 600 assert_equal(len(self.nodes[0].getblock(inputblockhash,True)["tx"]), 82+1) # 2 more version 4 blocks test_blocks = self.generate_blocks(2, 4) yield TestInstance(test_blocks, sync_every_block=False) # 5 # Not yet advanced to ACTIVE, height = 574 (will activate for block 576, not 575) assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'locked_in') # Test both version 1 and version 2 transactions for all tests # BIP113 test transaction will be modified before each use to put in appropriate block time bip113tx_v1 = self.create_transaction(self.nodes[0], bip113input, self.nodeaddress, Decimal("49.98")) bip113tx_v1.vin[0].nSequence = 0xFFFFFFFE bip113tx_v1.nVersion = 1 bip113tx_v2 = self.create_transaction(self.nodes[0], bip113input, self.nodeaddress, Decimal("49.98")) bip113tx_v2.vin[0].nSequence = 0xFFFFFFFE bip113tx_v2.nVersion = 2 # For BIP68 test all 16 relative sequence locktimes bip68txs_v1 = self.create_bip68txs(bip68inputs, 1) bip68txs_v2 = self.create_bip68txs(bip68inputs, 2) # For BIP112 test: # 16 relative sequence locktimes of 10 against 10 OP_CSV OP_DROP inputs bip112txs_vary_nSequence_v1 = self.create_bip112txs(bip112basicinputs[0], False, 1) bip112txs_vary_nSequence_v2 = self.create_bip112txs(bip112basicinputs[0], False, 2) # 16 relative sequence locktimes of 9 against 10 OP_CSV OP_DROP inputs bip112txs_vary_nSequence_9_v1 = self.create_bip112txs(bip112basicinputs[1], False, 1, -1) bip112txs_vary_nSequence_9_v2 = self.create_bip112txs(bip112basicinputs[1], False, 2, -1) # sequence lock time of 10 against 16 (relative_lock_time) OP_CSV OP_DROP inputs bip112txs_vary_OP_CSV_v1 = self.create_bip112txs(bip112diverseinputs[0], True, 1) bip112txs_vary_OP_CSV_v2 = self.create_bip112txs(bip112diverseinputs[0], True, 2) # sequence lock time of 9 against 16 (relative_lock_time) OP_CSV OP_DROP inputs bip112txs_vary_OP_CSV_9_v1 = self.create_bip112txs(bip112diverseinputs[1], True, 1, -1) bip112txs_vary_OP_CSV_9_v2 = self.create_bip112txs(bip112diverseinputs[1], True, 2, -1) # -1 OP_CSV OP_DROP input bip112tx_special_v1 = self.create_bip112special(bip112specialinput, 1) bip112tx_special_v2 = self.create_bip112special(bip112specialinput, 2) ### TESTING ### ################################## ### Before Soft Forks Activate ### ################################## # All txs should pass ### Version 1 txs ### success_txs = [] # add BIP113 tx and -1 CSV tx bip113tx_v1.nLockTime = self.last_block_time - 600 * 5 # = MTP of prior block (not <) but < time put on current block bip113signed1 = self.sign_transaction(self.nodes[0], bip113tx_v1) success_txs.append(bip113signed1) success_txs.append(bip112tx_special_v1) # add BIP 68 txs success_txs.extend(all_rlt_txs(bip68txs_v1)) # add BIP 112 with seq=10 txs success_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_v1)) success_txs.extend(all_rlt_txs(bip112txs_vary_OP_CSV_v1)) # try BIP 112 with seq=9 txs success_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_9_v1)) success_txs.extend(all_rlt_txs(bip112txs_vary_OP_CSV_9_v1)) yield TestInstance([[self.create_test_block(success_txs), True]]) # 6 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) ### Version 2 txs ### success_txs = [] # add BIP113 tx and -1 CSV tx bip113tx_v2.nLockTime = self.last_block_time - 600 * 5 # = MTP of prior block (not <) but < time put on current block bip113signed2 = self.sign_transaction(self.nodes[0], bip113tx_v2) success_txs.append(bip113signed2) success_txs.append(bip112tx_special_v2) # add BIP 68 txs success_txs.extend(all_rlt_txs(bip68txs_v2)) # add BIP 112 with seq=10 txs success_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_v2)) success_txs.extend(all_rlt_txs(bip112txs_vary_OP_CSV_v2)) # try BIP 112 with seq=9 txs success_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_9_v2)) success_txs.extend(all_rlt_txs(bip112txs_vary_OP_CSV_9_v2)) yield TestInstance([[self.create_test_block(success_txs), True]]) # 7 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) # 1 more version 4 block to get us to height 575 so the fork should now be active for the next block test_blocks = self.generate_blocks(1, 4) yield TestInstance(test_blocks, sync_every_block=False) # 8 assert_equal(get_bip9_status(self.nodes[0], 'csv')['status'], 'active') ################################# ### After Soft Forks Activate ### ################################# ### BIP 113 ### # BIP 113 tests should now fail regardless of version number if nLockTime isn't satisfied by new rules bip113tx_v1.nLockTime = self.last_block_time - 600 * 5 # = MTP of prior block (not <) but < time put on current block bip113signed1 = self.sign_transaction(self.nodes[0], bip113tx_v1) bip113tx_v2.nLockTime = self.last_block_time - 600 * 5 # = MTP of prior block (not <) but < time put on current block bip113signed2 = self.sign_transaction(self.nodes[0], bip113tx_v2) for bip113tx in [bip113signed1, bip113signed2]: yield TestInstance([[self.create_test_block([bip113tx]), False]]) # 9,10 # BIP 113 tests should now pass if the locktime is < MTP bip113tx_v1.nLockTime = self.last_block_time - 600 * 5 - 1 # < MTP of prior block bip113signed1 = self.sign_transaction(self.nodes[0], bip113tx_v1) bip113tx_v2.nLockTime = self.last_block_time - 600 * 5 - 1 # < MTP of prior block bip113signed2 = self.sign_transaction(self.nodes[0], bip113tx_v2) for bip113tx in [bip113signed1, bip113signed2]: yield TestInstance([[self.create_test_block([bip113tx]), True]]) # 11,12 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) # Next block height = 580 after 4 blocks of random version test_blocks = self.generate_blocks(4, 1234) yield TestInstance(test_blocks, sync_every_block=False) # 13 ### BIP 68 ### ### Version 1 txs ### # All still pass success_txs = [] success_txs.extend(all_rlt_txs(bip68txs_v1)) yield TestInstance([[self.create_test_block(success_txs), True]]) # 14 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) ### Version 2 txs ### bip68success_txs = [] # All txs with SEQUENCE_LOCKTIME_DISABLE_FLAG set pass for b25 in range(2): for b22 in range(2): for b18 in range(2): bip68success_txs.append(bip68txs_v2[1][b25][b22][b18]) yield TestInstance([[self.create_test_block(bip68success_txs), True]]) # 15 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) # All txs without flag fail as we are at delta height = 8 < 10 and delta time = 8 * 600 < 10 * 512 bip68timetxs = [] for b25 in range(2): for b18 in range(2): bip68timetxs.append(bip68txs_v2[0][b25][1][b18]) for tx in bip68timetxs: yield TestInstance([[self.create_test_block([tx]), False]]) # 16 - 19 bip68heighttxs = [] for b25 in range(2): for b18 in range(2): bip68heighttxs.append(bip68txs_v2[0][b25][0][b18]) for tx in bip68heighttxs: yield TestInstance([[self.create_test_block([tx]), False]]) # 20 - 23 # Advance one block to 581 test_blocks = self.generate_blocks(1, 1234) yield TestInstance(test_blocks, sync_every_block=False) # 24 # Height txs should fail and time txs should now pass 9 * 600 > 10 * 512 bip68success_txs.extend(bip68timetxs) yield TestInstance([[self.create_test_block(bip68success_txs), True]]) # 25 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) for tx in bip68heighttxs: yield TestInstance([[self.create_test_block([tx]), False]]) # 26 - 29 # Advance one block to 582 test_blocks = self.generate_blocks(1, 1234) yield TestInstance(test_blocks, sync_every_block=False) # 30 # All BIP 68 txs should pass bip68success_txs.extend(bip68heighttxs) yield TestInstance([[self.create_test_block(bip68success_txs), True]]) # 31 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) ### BIP 112 ### ### Version 1 txs ### # -1 OP_CSV tx should fail yield TestInstance([[self.create_test_block([bip112tx_special_v1]), False]]) #32 # If SEQUENCE_LOCKTIME_DISABLE_FLAG is set in argument to OP_CSV, version 1 txs should still pass success_txs = [] for b25 in range(2): for b22 in range(2): for b18 in range(2): success_txs.append(bip112txs_vary_OP_CSV_v1[1][b25][b22][b18]) success_txs.append(bip112txs_vary_OP_CSV_9_v1[1][b25][b22][b18]) yield TestInstance([[self.create_test_block(success_txs), True]]) # 33 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) # If SEQUENCE_LOCKTIME_DISABLE_FLAG is unset in argument to OP_CSV, version 1 txs should now fail fail_txs = [] fail_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_v1)) fail_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_9_v1)) for b25 in range(2): for b22 in range(2): for b18 in range(2): fail_txs.append(bip112txs_vary_OP_CSV_v1[0][b25][b22][b18]) fail_txs.append(bip112txs_vary_OP_CSV_9_v1[0][b25][b22][b18]) for tx in fail_txs: yield TestInstance([[self.create_test_block([tx]), False]]) # 34 - 81 ### Version 2 txs ### # -1 OP_CSV tx should fail yield TestInstance([[self.create_test_block([bip112tx_special_v2]), False]]) #82 # If SEQUENCE_LOCKTIME_DISABLE_FLAG is set in argument to OP_CSV, version 2 txs should pass (all sequence locks are met) success_txs = [] for b25 in range(2): for b22 in range(2): for b18 in range(2): success_txs.append(bip112txs_vary_OP_CSV_v2[1][b25][b22][b18]) # 8/16 of vary_OP_CSV success_txs.append(bip112txs_vary_OP_CSV_9_v2[1][b25][b22][b18]) # 8/16 of vary_OP_CSV_9 yield TestInstance([[self.create_test_block(success_txs), True]]) # 83 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) ## SEQUENCE_LOCKTIME_DISABLE_FLAG is unset in argument to OP_CSV for all remaining txs ## # All txs with nSequence 9 should fail either due to earlier mismatch or failing the CSV check fail_txs = [] fail_txs.extend(all_rlt_txs(bip112txs_vary_nSequence_9_v2)) # 16/16 of vary_nSequence_9 for b25 in range(2): for b22 in range(2): for b18 in range(2): fail_txs.append(bip112txs_vary_OP_CSV_9_v2[0][b25][b22][b18]) # 16/16 of vary_OP_CSV_9 for tx in fail_txs: yield TestInstance([[self.create_test_block([tx]), False]]) # 84 - 107 # If SEQUENCE_LOCKTIME_DISABLE_FLAG is set in nSequence, tx should fail fail_txs = [] for b25 in range(2): for b22 in range(2): for b18 in range(2): fail_txs.append(bip112txs_vary_nSequence_v2[1][b25][b22][b18]) # 8/16 of vary_nSequence for tx in fail_txs: yield TestInstance([[self.create_test_block([tx]), False]]) # 108-115 # If sequencelock types mismatch, tx should fail fail_txs = [] for b25 in range(2): for b18 in range(2): fail_txs.append(bip112txs_vary_nSequence_v2[0][b25][1][b18]) # 12/16 of vary_nSequence fail_txs.append(bip112txs_vary_OP_CSV_v2[0][b25][1][b18]) # 12/16 of vary_OP_CSV for tx in fail_txs: yield TestInstance([[self.create_test_block([tx]), False]]) # 116-123 # Remaining txs should pass, just test masking works properly success_txs = [] for b25 in range(2): for b18 in range(2): success_txs.append(bip112txs_vary_nSequence_v2[0][b25][0][b18]) # 16/16 of vary_nSequence success_txs.append(bip112txs_vary_OP_CSV_v2[0][b25][0][b18]) # 16/16 of vary_OP_CSV yield TestInstance([[self.create_test_block(success_txs), True]]) # 124 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) # Additional test, of checking that comparison of two time types works properly time_txs = [] for b25 in range(2): for b18 in range(2): tx = bip112txs_vary_OP_CSV_v2[0][b25][1][b18] tx.vin[0].nSequence = base_relative_locktime | seq_type_flag signtx = self.sign_transaction(self.nodes[0], tx) time_txs.append(signtx) yield TestInstance([[self.create_test_block(time_txs), True]]) # 125 self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash()) ### Missing aspects of test ## Testing empty stack fails if __name__ == '__main__': BIP68_112_113Test().main()