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611e12502a
We'll need a better integration of the hash preimages PSBT fields to satisfy Miniscript with such challenges from the RPC. Thanks to Greg Sanders for his examples and suggestions to improve this test.
273 lines
11 KiB
Python
Executable file
273 lines
11 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2022 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test Miniscript descriptors integration in the wallet."""
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from test_framework.descriptors import descsum_create
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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TPRVS = [
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"tprv8ZgxMBicQKsPerQj6m35no46amfKQdjY7AhLnmatHYXs8S4MTgeZYkWAn4edSGwwL3vkSiiGqSZQrmy5D3P5gBoqgvYP2fCUpBwbKTMTAkL",
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"tprv8ZgxMBicQKsPd3cbrKjE5GKKJLDEidhtzSSmPVtSPyoHQGL2LZw49yt9foZsN9BeiC5VqRaESUSDV2PS9w7zAVBSK6EQH3CZW9sMKxSKDwD",
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"tprv8iF7W37EHnVEtDr9EFeyFjQJFL6SfGby2AnZ2vQARxTQHQXy9tdzZvBBVp8a19e5vXhskczLkJ1AZjqgScqWL4FpmXVp8LLjiorcrFK63Sr",
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]
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TPUBS = [
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"tpubD6NzVbkrYhZ4YPAbyf6urxqqnmJF79PzQtyERAmvkSVS9fweCTjxjDh22Z5St9fGb1a5DUCv8G27nYupKP1Ctr1pkamJossoetzws1moNRn",
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"tpubD6NzVbkrYhZ4YMQC15JS7QcrsAyfGrGiykweqMmPxTkEVScu7vCZLNpPXW1XphHwzsgmqdHWDQAfucbM72EEB1ZEyfgZxYvkZjYVXx1xS9p",
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"tpubD6NzVbkrYhZ4YU9vM1s53UhD75UyJatx8EMzMZ3VUjR2FciNfLLkAw6a4pWACChzobTseNqdWk4G7ZdBqRDLtLSACKykTScmqibb1ZrCvJu",
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"tpubD6NzVbkrYhZ4XRMcMFMMFvzVt6jaDAtjZhD7JLwdPdMm9xa76DnxYYP7w9TZGJDVFkek3ArwVsuacheqqPog8TH5iBCX1wuig8PLXim4n9a",
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"tpubD6NzVbkrYhZ4WsqRzDmkL82SWcu42JzUvKWzrJHQ8EC2vEHRHkXj1De93sD3biLrKd8XGnamXURGjMbYavbszVDXpjXV2cGUERucLJkE6cy",
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"tpubDEFLeBkKTm8aiYkySz8hXAXPVnPSfxMi7Fxhg9sejUrkwJuRWvPdLEiXjTDbhGbjLKCZUDUUibLxTnK5UP1q7qYrSnPqnNe7M8mvAW1STcc",
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]
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PUBKEYS = [
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"02aebf2d10b040eb936a6f02f44ee82f8b34f5c1ccb20ff3949c2b28206b7c1068",
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"030f64b922aee2fd597f104bc6cb3b670f1ca2c6c49b1071a1a6c010575d94fe5a",
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"02abe475b199ec3d62fa576faee16a334fdb86ffb26dce75becebaaedf328ac3fe",
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"0314f3dc33595b0d016bb522f6fe3a67680723d842c1b9b8ae6b59fdd8ab5cccb4",
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"025eba3305bd3c829e4e1551aac7358e4178832c739e4fc4729effe428de0398ab",
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"029ffbe722b147f3035c87cb1c60b9a5947dd49c774cc31e94773478711a929ac0",
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"0211c7b2e18b6fd330f322de087da62da92ae2ae3d0b7cec7e616479cce175f183",
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]
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MINISCRIPTS = [
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# One of two keys
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f"or_b(pk({TPUBS[0]}/*),s:pk({TPUBS[1]}/*))",
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# A script similar (same spending policy) to BOLT3's offered HTLC (with anchor outputs)
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f"or_d(pk({TPUBS[0]}/*),and_v(and_v(v:pk({TPUBS[1]}/*),or_c(pk({TPUBS[2]}/*),v:hash160(7f999c905d5e35cefd0a37673f746eb13fba3640))),older(1)))",
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# A Revault Unvault policy with the older() replaced by an after()
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f"andor(multi(2,{TPUBS[0]}/*,{TPUBS[1]}/*),and_v(v:multi(4,{PUBKEYS[0]},{PUBKEYS[1]},{PUBKEYS[2]},{PUBKEYS[3]}),after(424242)),thresh(4,pkh({TPUBS[2]}/*),a:pkh({TPUBS[3]}/*),a:pkh({TPUBS[4]}/*),a:pkh({TPUBS[5]}/*)))",
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# Liquid-like federated pegin with emergency recovery keys
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f"or_i(and_b(pk({PUBKEYS[0]}),a:and_b(pk({PUBKEYS[1]}),a:and_b(pk({PUBKEYS[2]}),a:and_b(pk({PUBKEYS[3]}),s:pk({PUBKEYS[4]}))))),and_v(v:thresh(2,pkh({TPUBS[0]}/*),a:pkh({PUBKEYS[5]}),a:pkh({PUBKEYS[6]})),older(4209713)))",
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]
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MINISCRIPTS_PRIV = [
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# One of two keys, of which one private key is known
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{
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"ms": f"or_i(pk({TPRVS[0]}/*),pk({TPUBS[0]}/*))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 1,
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"stack_size": 3,
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},
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# A more complex policy, that can't be satisfied through the first branch (need for a preimage)
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{
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"ms": f"andor(ndv:older(2),and_v(v:pk({TPRVS[0]}),sha256(2a8ce30189b2ec3200b47aeb4feaac8fcad7c0ba170389729f4898b0b7933bcb)),and_v(v:pkh({TPRVS[1]}),pk({TPRVS[2]}/*)))",
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"sequence": 2,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 5,
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},
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# Signature with a relative timelock
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{
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"ms": f"and_v(v:older(2),pk({TPRVS[0]}/*))",
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"sequence": 2,
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"locktime": None,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# Signature with an absolute timelock
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{
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"ms": f"and_v(v:after(20),pk({TPRVS[0]}/*))",
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"sequence": None,
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"locktime": 20,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# Signature with both
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{
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"ms": f"and_v(v:older(4),and_v(v:after(30),pk({TPRVS[0]}/*)))",
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"sequence": 4,
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"locktime": 30,
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"sigs_count": 1,
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"stack_size": 2,
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},
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# We have one key on each branch; Core signs both (can't finalize)
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{
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"ms": f"c:andor(pk({TPRVS[0]}/*),pk_k({TPUBS[0]}),and_v(v:pk({TPRVS[1]}),pk_k({TPUBS[1]})))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": None,
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},
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# We have all the keys, wallet selects the timeout path to sign since it's smaller and sequence is set
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{
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"ms": f"andor(pk({TPRVS[0]}/*),pk({TPRVS[2]}),and_v(v:pk({TPRVS[1]}),older(10)))",
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"sequence": 10,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 3,
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},
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# We have all the keys, wallet selects the primary path to sign unconditionally since nsequence wasn't set to be valid for timeout path
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{
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"ms": f"andor(pk({TPRVS[0]}/*),pk({TPRVS[2]}),and_v(v:pkh({TPRVS[1]}),older(10)))",
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"sequence": None,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 3,
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},
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# Finalizes to the smallest valid witness, regardless of sequence
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{
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"ms": f"or_d(pk({TPRVS[0]}/*),and_v(v:pk({TPRVS[1]}),and_v(v:pk({TPRVS[2]}),older(10))))",
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"sequence": 12,
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"locktime": None,
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"sigs_count": 3,
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"stack_size": 2,
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},
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# Liquid-like federated pegin with emergency recovery privkeys
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{
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"ms": f"or_i(and_b(pk({TPUBS[0]}/*),a:and_b(pk({TPUBS[1]}),a:and_b(pk({TPUBS[2]}),a:and_b(pk({TPUBS[3]}),s:pk({PUBKEYS[0]}))))),and_v(v:thresh(2,pkh({TPRVS[0]}),a:pkh({TPRVS[1]}),a:pkh({TPUBS[4]})),older(42)))",
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"sequence": 42,
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"locktime": None,
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"sigs_count": 2,
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"stack_size": 8,
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},
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]
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class WalletMiniscriptTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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self.skip_if_no_sqlite()
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def watchonly_test(self, ms):
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self.log.info(f"Importing Miniscript '{ms}'")
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desc = descsum_create(f"wsh({ms})")
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assert self.ms_wo_wallet.importdescriptors(
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[
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{
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"desc": desc,
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"active": True,
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"range": 2,
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"next_index": 0,
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"timestamp": "now",
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}
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]
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)[0]["success"]
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self.log.info("Testing we derive new addresses for it")
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assert_equal(
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self.ms_wo_wallet.getnewaddress(), self.funder.deriveaddresses(desc, 0)[0]
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)
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assert_equal(
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self.ms_wo_wallet.getnewaddress(), self.funder.deriveaddresses(desc, 1)[1]
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)
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self.log.info("Testing we detect funds sent to one of them")
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addr = self.ms_wo_wallet.getnewaddress()
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txid = self.funder.sendtoaddress(addr, 0.01)
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self.wait_until(
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lambda: len(self.ms_wo_wallet.listunspent(minconf=0, addresses=[addr])) == 1
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)
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utxo = self.ms_wo_wallet.listunspent(minconf=0, addresses=[addr])[0]
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assert utxo["txid"] == txid and utxo["solvable"]
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def signing_test(self, ms, sequence, locktime, sigs_count, stack_size):
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self.log.info(f"Importing private Miniscript '{ms}'")
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desc = descsum_create(f"wsh({ms})")
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res = self.ms_sig_wallet.importdescriptors(
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[
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{
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"desc": desc,
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"active": True,
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"range": 0,
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"next_index": 0,
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"timestamp": "now",
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}
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]
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)
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assert res[0]["success"], res
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self.log.info("Generating an address for it and testing it detects funds")
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addr = self.ms_sig_wallet.getnewaddress()
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txid = self.funder.sendtoaddress(addr, 0.01)
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self.wait_until(lambda: txid in self.funder.getrawmempool())
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self.funder.generatetoaddress(1, self.funder.getnewaddress())
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utxo = self.ms_sig_wallet.listunspent(addresses=[addr])[0]
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assert txid == utxo["txid"] and utxo["solvable"]
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self.log.info("Creating a transaction spending these funds")
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dest_addr = self.funder.getnewaddress()
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seq = sequence if sequence is not None else 0xFFFFFFFF - 2
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lt = locktime if locktime is not None else 0
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psbt = self.ms_sig_wallet.createpsbt(
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[
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{
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"txid": txid,
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"vout": utxo["vout"],
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"sequence": seq,
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}
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],
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[{dest_addr: 0.009}],
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lt,
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)
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self.log.info("Signing it and checking the satisfaction.")
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res = self.ms_sig_wallet.walletprocesspsbt(psbt=psbt, finalize=False)
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psbtin = self.nodes[0].rpc.decodepsbt(res["psbt"])["inputs"][0]
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assert len(psbtin["partial_signatures"]) == sigs_count
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res = self.ms_sig_wallet.finalizepsbt(res["psbt"])
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assert res["complete"] == (stack_size is not None)
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if stack_size is not None:
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txin = self.nodes[0].rpc.decoderawtransaction(res["hex"])["vin"][0]
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assert len(txin["txinwitness"]) == stack_size, txin["txinwitness"]
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self.log.info("Broadcasting the transaction.")
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# If necessary, satisfy a relative timelock
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if sequence is not None:
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self.funder.generatetoaddress(sequence, self.funder.getnewaddress())
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# If necessary, satisfy an absolute timelock
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height = self.funder.getblockcount()
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if locktime is not None and height < locktime:
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self.funder.generatetoaddress(
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locktime - height, self.funder.getnewaddress()
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)
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self.ms_sig_wallet.sendrawtransaction(res["hex"])
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def run_test(self):
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self.log.info("Making a descriptor wallet")
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self.funder = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
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self.nodes[0].createwallet(
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wallet_name="ms_wo", descriptors=True, disable_private_keys=True
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)
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self.ms_wo_wallet = self.nodes[0].get_wallet_rpc("ms_wo")
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self.nodes[0].createwallet(wallet_name="ms_sig", descriptors=True)
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self.ms_sig_wallet = self.nodes[0].get_wallet_rpc("ms_sig")
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# Sanity check we wouldn't let an insane Miniscript descriptor in
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res = self.ms_wo_wallet.importdescriptors(
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[
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{
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"desc": descsum_create(
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"wsh(and_b(ripemd160(1fd9b55a054a2b3f658d97e6b84cf3ee00be429a),a:1))"
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),
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"active": False,
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"timestamp": "now",
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}
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]
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)[0]
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assert not res["success"]
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assert "is not sane: witnesses without signature exist" in res["error"]["message"]
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# Test we can track any type of Miniscript
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for ms in MINISCRIPTS:
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self.watchonly_test(ms)
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# Test we can sign most Miniscript (all but ones requiring preimages, for now)
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for ms in MINISCRIPTS_PRIV:
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self.signing_test(
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ms["ms"],
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ms["sequence"],
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ms["locktime"],
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ms["sigs_count"],
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ms["stack_size"],
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)
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if __name__ == "__main__":
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WalletMiniscriptTest().main()
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