Merge pull request #489 from tecnovert/csv_check_fix

fix: get refund tx block info for CSV check

.github/workflows/ci.yml

@@ -92,7 +92,7 @@ jobs:
         export PARTICL_BINDIR="$BIN_DIR/particl"
         export BITCOIN_BINDIR="$BIN_DIR/bitcoin"
         export XMR_BINDIR="$BIN_DIR/monero"
-        pytest tests/basicswap/test_btc_xmr.py::TestBTC -k "test_003_api or test_02_a_leader_recover_a_lock_tx or test_11_fee_validation"
+        pytest tests/basicswap/test_btc_xmr.py::TestBTC -k "test_003_api or test_02_a_leader_recover_a_lock_tx or test_03_a_follower_recover_a_lock_tx or test_11_fee_validation"
     - name: Run test_encrypted_xmr_reload
       id: test_encrypted_xmr_reload
       run: |

basicswap/basicswap.py

@@ -5552,8 +5552,8 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
             use_cursor = self.openDB(cursor)
 
             bid, offer = self.getBidAndOffer(bid_id, use_cursor)
-            ensure(bid, "Bid not found")
-            ensure(offer, "Offer not found")
+            ensure(bid, f"Bid not found: {self.log.id(bid_id)}.")
+            ensure(offer, f"Offer not found: {self.log.id(bid.offer_id)}.")
 
             # Ensure bid is still valid
             now: int = self.getTime()
@@ -6828,8 +6828,8 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
         try:
             use_cursor = self.openDB(cursor)
             bid, offer = self.getBidAndOffer(bid_id, use_cursor, with_txns=False)
-            ensure(bid, "Bid not found")
-            ensure(offer, "Offer not found")
+            ensure(bid, f"Bid not found: {self.log.id(bid_id)}.")
+            ensure(offer, f"Offer not found: {self.log.id(bid.offer_id)}.")
 
             bid.setState(new_state)
             self.deactivateBid(use_cursor, offer, bid)
@@ -7747,7 +7747,7 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                         self.logBidEvent(
                             bid.bid_id,
                             EventLogTypes.DEBUG_TWEAK_APPLIED,
-                            "ind {}".format(bid.debug_ind),
+                            f"ind {bid.debug_ind}",
                             cursor,
                         )
                         self.commitDB()
@@ -7802,6 +7802,23 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                         self.saveBidInSession(bid_id, bid, cursor, xmr_swap)
                         self.commitDB()
 
+                    if refund_tx.block_height is None:
+                        self.log.debug(
+                            f"A_LOCK_REFUND tx: {self.logIDT(refund_tx.txid)} block height not known, bid: {self.log.id(bid_id)}"
+                        )
+                        refund_tx_info = ci_from.getTxOutInfo(
+                            refund_tx.txid, refund_tx.vout
+                        )
+                        if refund_tx_info:
+                            refund_tx.block_hash = refund_tx_info["block_hash"]
+                            refund_tx.block_height = refund_tx_info["block_height"]
+                            refund_tx.block_time = refund_tx_info["block_time"]
+                            self.log.debug(
+                                f"Found A_LOCK_REFUND tx block height: {refund_tx.block_height}, time: {refund_tx.block_time}"
+                            )
+                            self.add(refund_tx, cursor, upsert=True)
+                            self.commitDB()
+
                     if (
                         TxTypes.XMR_SWAP_A_LOCK_REFUND_SWIPE not in bid.txns
                         and refund_tx.block_height is not None
@@ -7947,10 +7964,14 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                             "",
                             cursor,
                         )
+                        refund_vout: int = ci_from.getLockRefundVout(
+                            xmr_swap.a_lock_refund_tx, xmr_swap.vkbv
+                        )
                         bid.txns[TxTypes.XMR_SWAP_A_LOCK_REFUND] = SwapTx(
                             bid_id=bid_id,
                             tx_type=TxTypes.XMR_SWAP_A_LOCK_REFUND,
                             txid=bytes.fromhex(txid),
+                            vout=refund_vout,
                         )
                         self.saveBidInSession(bid_id, bid, cursor, xmr_swap)
                         self.commitDB()
@@ -7962,10 +7983,14 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                             )
                             txid = ci_from.getTxid(xmr_swap.a_lock_refund_tx)
                             if TxTypes.XMR_SWAP_A_LOCK_REFUND not in bid.txns:
+                                refund_vout: int = ci_from.getLockRefundVout(
+                                    xmr_swap.a_lock_refund_tx, xmr_swap.vkbv
+                                )
                                 bid.txns[TxTypes.XMR_SWAP_A_LOCK_REFUND] = SwapTx(
                                     bid_id=bid_id,
                                     tx_type=TxTypes.XMR_SWAP_A_LOCK_REFUND,
                                     txid=txid,
+                                    vout=refund_vout,
                                 )
                             self.saveBidInSession(bid_id, bid, cursor, xmr_swap)
                             self.commitDB()
@@ -8346,14 +8371,15 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
         return rv
 
     def _isScriptRefundMature(self, ci, offer, refund_tx_bytes, parent_tx) -> bool:
-        refund_tx = ci.loadTx(refund_tx_bytes)
         if offer.lock_type in (TxLockTypes.ABS_LOCK_BLOCKS, TxLockTypes.ABS_LOCK_TIME):
-            return ci.isAbsLockTimeMature(refund_tx.nLockTime)
+            tx_locktime: int = ci.getTxLocktime(refund_tx_bytes)
+            return ci.isAbsLockTimeMature(tx_locktime)
         if parent_tx is None or parent_tx.block_height is None:
             return False
+        txi_sequence: int = ci.getTxInSequence(refund_tx_bytes, 0)
         return ci.isCsvLockMature(
             offer.lock_type,
-            refund_tx.vin[0].nSequence,
+            txi_sequence,
             parent_tx.block_height,
             parent_tx.block_time,
         )
@@ -8641,12 +8667,33 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                         f"Error trying to submit initiate refund txn: {ex}"
                     )
 
-        if (
+        should_try_refund_ptx: bool = (
             bid.getPTxState() in (TxStates.TX_SENT, TxStates.TX_CONFIRMED)
             and bid.participate_txn_refund is not None
-            and self._isScriptRefundMature(
-                ci_to, offer, bid.participate_txn_refund, bid.participate_tx
         )
+        if (
+            should_try_refund_ptx
+            and bid.participate_tx is not None
+            and bid.participate_tx.block_height is None
+        ):
+            self.log.debug(
+                f"PTX: {self.logIDT(bid.participate_tx.txid)} block height not known, bid: {self.log.id(bid_id)}"
+            )
+            # An invalid ptx, won't be confirmed, check block height here
+            ptx_info = ci_to.getTxOutInfo(
+                bid.participate_tx.txid, bid.participate_tx.vout
+            )
+            if ptx_info:
+                bid.participate_tx.block_hash = ptx_info["block_hash"]
+                bid.participate_tx.block_height = ptx_info["block_height"]
+                bid.participate_tx.block_time = ptx_info["block_time"]
+                self.log.debug(
+                    f"Found PTX block height: {bid.participate_tx.block_height}, time: {bid.participate_tx.block_time}"
+                )
+                self.saveBid(bid_id, bid)
+
+        if should_try_refund_ptx and self._isScriptRefundMature(
+            ci_to, offer, bid.participate_txn_refund, bid.participate_tx
         ):
             try:
                 txid = ci_to.publishTx(bid.participate_txn_refund)
@@ -9017,10 +9064,14 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                 )
 
                 if TxTypes.XMR_SWAP_A_LOCK_REFUND not in bid.txns:
+                    refund_vout: int = ci_from.getLockRefundVout(
+                        bytes.fromhex(spend_txn_hex), xmr_swap.vkbv
+                    )
                     bid.txns[TxTypes.XMR_SWAP_A_LOCK_REFUND] = SwapTx(
                         bid_id=bid.bid_id,
                         tx_type=TxTypes.XMR_SWAP_A_LOCK_REFUND,
                         txid=xmr_swap.a_lock_refund_tx_id,
+                        vout=refund_vout,
                     )
             else:
                 self.setBidError(
@@ -9140,6 +9191,7 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
                 if was_received:
                     if self.isBchXmrSwap(offer):
                         # Mercy tx is sent separately
+                        # Can't set XMR_SWAP_FAILED_SWIPED, as bid should continue looking for mercy tx
                         pass
                     else:
                         # Look for a mercy output
@@ -11218,7 +11270,7 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
             refundExtraArgs = dict()
             lockExtraArgs = dict()
             if self.isBchXmrSwap(offer):
-                # perform check that both lock and refund transactions have their outs pointing to correct follower address
+                # Perform check that both lock and refund transactions have their outs pointing to correct follower address
                 # and prepare extra args for validation
 
                 bch_ci = self.ci(Coins.BCH)
@@ -12975,8 +13027,8 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
         self.log.info(f"Route established for bid {self.log.id(bid_id)}")
 
         bid, offer = self.getBidAndOffer(bid_id, cursor)
-        ensure(bid, "Bid not found")
-        ensure(offer, "Offer not found")
+        ensure(bid, f"Bid not found: {self.log.id(bid_id)}.")
+        ensure(offer, f"Offer not found: {self.log.id(bid.offer_id)}.")
 
         coin_from = Coins(offer.coin_from)
         coin_to = Coins(offer.coin_to)
@@ -14082,9 +14134,9 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
             walletinfo = ci.getWalletInfo()
             rv = {
                 "deposit_address": self.getCachedAddressForCoin(coin),
-                "balance": ci.format_amount(walletinfo["balance"], conv_int=True),
+                "balance": ci.format_amount(walletinfo["balance"], conv_int=True, r=-1),
                 "unconfirmed": ci.format_amount(
-                    walletinfo["unconfirmed_balance"], conv_int=True
+                    walletinfo["unconfirmed_balance"], conv_int=True, r=-1
                 ),
                 "expected_seed": ci.knownWalletSeed(),
                 "encrypted": walletinfo["encrypted"],
@@ -14099,7 +14151,7 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
 
             if "immature_balance" in walletinfo:
                 rv["immature"] = ci.format_amount(
-                    walletinfo["immature_balance"], conv_int=True
+                    walletinfo["immature_balance"], conv_int=True, r=-1
                 )
 
             if "locked_utxos" in walletinfo:
@@ -15090,8 +15142,7 @@ class BasicSwap(BaseApp, BSXNetwork, UIApp):
             return
 
         bid = self.getBid(bid_id)
-        if bid is None:
-            raise ValueError("Bid not found.")
+        ensure(bid, f"Bid not found: {self.log.id(bid_id)}.")
 
         bid.debug_ind = debug_ind
 

basicswap/interface/base.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
@@ -193,6 +192,9 @@ class AdaptorSigInterface:
     def getScriptLockRefundSwipeTxDummyWitness(self, script: bytes) -> List[bytes]:
         return [bytes(72), b"", bytes(len(script))]
 
+    def getLockRefundVout(self, lock_refund_tx_data: bytes, vbkv: bytes):
+        return 0
+
 
 class Secp256k1Interface(CoinInterface, AdaptorSigInterface):
     def __init__(self, **kwargs):

basicswap/interface/bch.py

@@ -147,7 +147,9 @@ class BCHInterface(BTCInterface):
 
         if not self.isAddressMine(address, or_watch_only=True):
             # Expects P2WSH nested in BIP16_P2SH
-            self.rpc("importaddress", [lock_tx_dest.hex(), "bid lock", False, True])
+            self.rpc_wallet(
+                "importaddress", [lock_tx_dest.hex(), "bid lock", False, True]
+            )
 
         return address
 
@@ -156,12 +158,20 @@ class BCHInterface(BTCInterface):
 
     def createRawFundedTransaction(
         self,
-        addr_to: str,
+        addr_to: str | bytes,
         amount: int,
         sub_fee: bool = False,
         lock_unspents: bool = True,
         feerate: int = None,
     ) -> str:
+
+        if isinstance(addr_to, bytes):
+            # addr_to is script_pubkey
+            tx = CTransaction()
+            tx.nVersion = self.txVersion()
+            tx.vout.append(self.txoType()(amount, addr_to))
+            txn = tx.serialize_without_witness().hex()
+        else:
             txn = self.rpc(
                 "createrawtransaction", [[], {addr_to: self.format_amount(amount)}]
             )
@@ -228,6 +238,16 @@ class BCHInterface(BTCInterface):
         )
         return pay_fee
 
+    def getBLockTxo(
+        self,
+        chain_b_lock_txid: bytes,
+        lock_tx_vout: int,
+        script_pk: bytes,
+    ) -> (int, int):
+        txout = self.rpc("gettxout", [chain_b_lock_txid.hex(), lock_tx_vout, True])
+        actual_value = self.make_int(txout["value"])
+        return lock_tx_vout, actual_value
+
     def findTxnByHash(self, txid_hex: str):
         # Only works for wallet txns
         try:
@@ -282,7 +302,7 @@ class BCHInterface(BTCInterface):
                 found_vout = try_vout
                 break
             except Exception as e:  # noqa: F841
-                # self._log.warning('gettxout {}'.format(e))
+                # self._log.warning(f"gettxout {e}")
                 return None
 
         if found_vout is None:
@@ -295,7 +315,7 @@ class BCHInterface(BTCInterface):
 
         # TODO: Better way?
         if confirmations > 0:
-            block_height = self.getChainHeight() - confirmations
+            block_height = self.getChainHeight() - (confirmations - 1)
 
         rv = {
             "txid": txid.hex(),
@@ -516,6 +536,7 @@ class BCHInterface(BTCInterface):
         tx_lock = self.loadTx(tx_lock_bytes)
 
         output_script = self.getScriptDest(script_lock)
+
         locked_n = findOutput(tx_lock, output_script)
         ensure(locked_n is not None, "Output not found in tx")
         locked_coin = tx_lock.vout[locked_n].nValue
@@ -1134,7 +1155,7 @@ class BCHInterface(BTCInterface):
         refund_output_value = refund_swipe_tx.vout[0].nValue
         refund_output_script = refund_swipe_tx.vout[0].scriptPubKey
 
-        # mercy transaction size consisting of one input of freshly received funds,
+        # Mercy transaction size consisting of one input of freshly received funds,
         # one op_return with mercy information, a dust output to the leader and change back to the follower
         tx_size = 275
         dust_limit = 546

basicswap/interface/btc.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
@@ -508,6 +507,14 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
             return height
         return self.rpc("getblockcount")
 
+    def getTxLocktime(self, tx_data: bytes) -> int:
+        tx_obj = self.loadTx(tx_data)
+        return tx_obj.nLockTime
+
+    def getTxInSequence(self, tx_data: bytes, vout: int) -> int:
+        tx_obj = self.loadTx(tx_data)
+        return tx_obj.vin[vout].nSequence
+
     def getChainMedianTime(self) -> int:
         if self.useBackend():
             import struct
@@ -601,7 +608,7 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         block_hash = sha256(sha256(header_bytes))[::-1].hex()
         return {"height": height, "hash": block_hash, "time": block_time}
 
-    def getBlockHeader(self, block_hash):
+    def getBlockHeader(self, block_hash: str) -> dict:
         if self._connection_type == "electrum":
             raise NotImplementedError(
                 "getBlockHeader by hash not available in electrum mode"
@@ -2785,6 +2792,47 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         )
         return pay_fee
 
+    def getBLockTxo(
+        self,
+        chain_b_lock_txid: bytes,
+        lock_tx_vout: int,
+        script_pk: bytes,
+    ) -> (int, int):
+        if self.useBackend():
+            backend = self.getBackend()
+            tx_hex = backend.getTransactionRaw(chain_b_lock_txid.hex())
+            if tx_hex:
+                lock_tx = self.loadTx(bytes.fromhex(tx_hex))
+                locked_n = findOutput(lock_tx, script_pk)
+                if locked_n is not None:
+                    actual_value = lock_tx.vout[locked_n].nValue
+                else:
+                    self._log.error(
+                        f"spendBLockTx: Output not found in tx {self._log.id(chain_b_lock_txid)}, "
+                        f"script_pk={script_pk.hex()}, num_outputs={len(lock_tx.vout)}"
+                    )
+                    for i, out in enumerate(lock_tx.vout):
+                        self._log.debug(
+                            f"  vout[{i}]: value={out.nValue}, scriptPubKey={out.scriptPubKey.hex()}"
+                        )
+            else:
+                self._log.warning(
+                    f"spendBLockTx: Failed to fetch tx {self._log.id(chain_b_lock_txid)} from backend"
+                )
+                locked_n = lock_tx_vout
+            return locked_n, actual_value
+        wtx = self.rpc_wallet_watch(
+            "gettransaction",
+            [
+                chain_b_lock_txid.hex(),
+            ],
+        )
+        lock_tx = self.loadTx(bytes.fromhex(wtx["hex"]))
+        locked_n = findOutput(lock_tx, script_pk)
+        if locked_n is not None:
+            actual_value = lock_tx.vout[locked_n].nValue
+        return locked_n, actual_value
+
     def spendBLockTx(
         self,
         chain_b_lock_txid: bytes,
@@ -2798,48 +2846,14 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         lock_tx_vout=None,
     ) -> bytes:
         self._log.info(
-            "spendBLockTx: {} {}\n".format(
-                self._log.id(chain_b_lock_txid), lock_tx_vout
-            )
+            f"spendBLockTx: {self._log.id(chain_b_lock_txid)} {lock_tx_vout}\n"
         )
         Kbs = self.getPubkey(kbs)
         script_pk = self.getPkDest(Kbs)
 
-        locked_n = None
-        actual_value = None
-        if self.useBackend():
-            backend = self.getBackend()
-            tx_hex = backend.getTransactionRaw(chain_b_lock_txid.hex())
-            if tx_hex:
-                lock_tx = self.loadTx(bytes.fromhex(tx_hex))
-                locked_n = findOutput(lock_tx, script_pk)
-                if locked_n is not None:
-                    actual_value = lock_tx.vout[locked_n].nValue
-                else:
-                    self._log.error(
-                        f"spendBLockTx: Output not found in tx {chain_b_lock_txid.hex()}, "
-                        f"script_pk={script_pk.hex()}, num_outputs={len(lock_tx.vout)}"
+        locked_n, actual_value = self.getBLockTxo(
+            chain_b_lock_txid, lock_tx_vout, script_pk
         )
-                    for i, out in enumerate(lock_tx.vout):
-                        self._log.debug(
-                            f"  vout[{i}]: value={out.nValue}, scriptPubKey={out.scriptPubKey.hex()}"
-                        )
-            else:
-                self._log.warning(
-                    f"spendBLockTx: Failed to fetch tx {chain_b_lock_txid.hex()} from backend"
-                )
-                locked_n = lock_tx_vout
-        else:
-            wtx = self.rpc_wallet_watch(
-                "gettransaction",
-                [
-                    chain_b_lock_txid.hex(),
-                ],
-            )
-            lock_tx = self.loadTx(bytes.fromhex(wtx["hex"]))
-            locked_n = findOutput(lock_tx, script_pk)
-            if locked_n is not None:
-                actual_value = lock_tx.vout[locked_n].nValue
 
         if (
             locked_n is not None
@@ -2848,7 +2862,7 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         ):
             self._log.warning(
                 f"spendBLockTx: Stored vout {lock_tx_vout} differs from actual vout {locked_n} "
-                f"for tx {chain_b_lock_txid.hex()}"
+                f"for tx {self._log.id(chain_b_lock_txid)}"
             )
 
         ensure(locked_n is not None, "Output not found in tx")
@@ -2938,13 +2952,9 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         # Add watchonly address and rescan if required
         if not self.isAddressMine(dest_address, or_watch_only=True):
             self.importWatchOnlyAddress(dest_address, "bid")
+            self._log.info(f"Imported watch-only addr: {self._log.addr(dest_address)}")
             self._log.info(
-                "Imported watch-only addr: {}".format(self._log.addr(dest_address))
-            )
-            self._log.info(
-                "Rescanning {} chain from height: {}".format(
-                    self.coin_name(), rescan_from
-                )
+                f"Rescanning {self.coin_name()} chain from height: {rescan_from}"
             )
             self.rpc_wallet("rescanblockchain", [rescan_from])
 
@@ -3657,7 +3667,7 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
                 continue
             if "desc" in u:
                 desc = u["desc"]
-                if self.using_segwit:
+                if self.using_segwit():
                     if self.use_p2shp2wsh():
                         if not desc.startswith("sh(wpkh"):
                             continue
@@ -3818,7 +3828,7 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
 
         ensure(
             sign_for_addr is not None,
-            "Could not find address with enough funds for proof",
+            f"Could not find {self.ticker()} address with enough funds for proof",
         )
 
         self._log.debug(f"sign_for_addr {sign_for_addr}")
@@ -4457,6 +4467,8 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
         return None
 
     def isTxExistsError(self, err_str: str) -> bool:
+        if self._connection_type == "electrum":
+            return "Transaction outputs already in utxo set" in err_str
         return "Transaction already in block chain" in err_str
 
     def isTxNonFinalError(self, err_str: str) -> bool:
@@ -4511,7 +4523,7 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
                 self._log.id(bytes.fromhex(tx["txid"]))
             )
         )
-        self.publishTx(tx_signed)
+        self.publishTx(bytes.fromhex(tx_signed))
 
         return tx["txid"]
 
@@ -4549,10 +4561,65 @@ class BTCInterface(FeeValidator, Secp256k1Interface):
 
         return bytes.fromhex(txi_txid_hex), fee_rate
 
+    def _getTxOutInfoElectrum(self, txid: bytes, n: int, include_mempool: bool = False):
+        backend = self.getBackend()
+        if not backend:
+            return None
 
-def testBTCInterface():
-    print("TODO: testBTCInterface")
+        try:
+            tx_info = backend.getTransaction(txid.hex())
+            if "blockhash" not in tx_info:
+                return None
+            confirmations: int = (
+                0 if "confirmations" not in tx_info else tx_info["confirmations"]
+            )
+            if confirmations < 1:
+                return None
 
+            chain_tip_height = self.getChainHeight()
+            block_height: int = chain_tip_height - (confirmations - 1)
+            block_hash: bytes = bytes.fromhex(tx_info["blockhash"])
+            return {
+                "block_hash": block_hash,
+                "block_height": block_height,
+                "block_time": tx_info["blocktime"],
+            }
+        except Exception as e:
+            self._log.debug(f"_findTxnByHashElectrum failed: {e}")
+        return None
 
-if __name__ == "__main__":
-    testBTCInterface()
+    def getTxOutInfo(
+        self, txid: bytes, n: int, include_mempool: bool = False
+    ) -> dict():
+        if self._connection_type == "electrum":
+            return self._getTxOutInfoElectrum(txid, n, include_mempool)
+        try:
+            txout = self.rpc("gettxout", [txid.hex(), n, include_mempool])
+            confirmations: int = (
+                0 if "confirmations" not in txout else txout["confirmations"]
+            )
+            if confirmations < 1:
+                return None
+            chain_tip_height: int = 0
+            if "bestblock" in txout:
+                bestheader_info = self.getBlockHeader(txout["bestblock"])
+                chain_tip_height = bestheader_info["height"]
+            else:
+                chain_tip_height = self.getChainHeight()
+
+            if confirmations == 1:
+                header_info = bestheader_info
+            else:
+                block_height: int = chain_tip_height - (confirmations - 1)
+                header_info = self.getBlockHeaderFromHeight(block_height)
+
+            block_hash: bytes = bytes.fromhex(header_info["hash"])
+            return {
+                "block_hash": block_hash,
+                "block_height": header_info["height"],
+                "block_time": header_info["time"],
+            }
+
+        except Exception as e:  # noqa: F841
+            # self._log.warning(f"gettxout {e}")
+            return None

basicswap/interface/dash.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2024 tecnovert

basicswap/interface/dcr/dcr.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
@@ -13,7 +12,7 @@ import logging
 import random
 import traceback
 
-from typing import List
+from typing import List, Optional
 
 from basicswap.basicswap_util import getVoutByScriptPubKey, TxLockTypes
 from basicswap.chainparams import Coins
@@ -419,8 +418,10 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         return bci
 
+    def getBlockHeader(self, block_hash: str) -> dict:
+        return self.rpc("getblockheader", [block_hash])
+
     def getWalletInfo(self):
-        rv = {}
         rv = self.rpc_wallet("getinfo")
         wi = self.rpc_wallet("walletinfo")
         balances = self.rpc_wallet("getbalance")
@@ -595,7 +596,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
         override_feerate = chain_client_settings.get("override_feerate", None)
         if override_feerate:
             self._log.debug(
-                "Fee rate override used for %s: %f", self.coin_name(), override_feerate
+                f"Fee rate override used for {self.coin_name()}: {override_feerate}"
             )
             return override_feerate, "override_feerate"
 
@@ -919,7 +920,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
                 found_vout = try_vout
                 break
             except Exception as e:  # noqa: F841
-                # self._log.warning('gettxout {}'.format(e))
+                # self._log.warning(f"gettxout {e})
                 return None
 
         if found_vout is None:
@@ -932,7 +933,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         # TODO: Better way?
         if confirmations > 0:
-            block_height = self.getChainHeight() - confirmations
+            block_height = self.getChainHeight() - (confirmations - 1)
 
         rv = {
             "txid": txid.hex(),
@@ -999,6 +1000,10 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
         tx.vout.append(self.txoType()(output_value, script))
         return tx.serialize().hex()
 
+    def ensureFunds(self, amount: int) -> None:
+        if self.getSpendableBalance() < amount:
+            raise ValueError("Balance too low")
+
     def verifyRawTransaction(self, tx_hex: str, prevouts):
         inputs_valid: bool = True
         validscripts: int = 0
@@ -1151,6 +1156,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         dummy_witness_stack = self.getScriptLockTxDummyWitness(script_lock)
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         pay_fee = round(tx_fee_rate * size / 1000)
         tx.vout[0].value = locked_coin - pay_fee
 
@@ -1202,6 +1208,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         dummy_witness_stack = self.getScriptLockTxDummyWitness(script_lock)
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         pay_fee = round(tx_fee_rate * size / 1000)
         tx.vout[0].value = locked_coin - pay_fee
 
@@ -1253,6 +1260,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
             script_lock_refund
         )
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         pay_fee = round(tx_fee_rate * size / 1000)
         tx.vout[0].value = locked_coin - pay_fee
 
@@ -1337,6 +1345,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
             assert fee_paid > 0
 
             size = len(tx.serialize()) + add_witness_bytes
+            size += 1
             fee_rate_paid = fee_paid * 1000 // size
 
             self._log.info(
@@ -1398,6 +1407,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         dummy_witness_stack = self.getScriptLockTxDummyWitness(lock_tx_script)
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         fee_rate_paid = fee_paid * 1000 // size
 
         self._log.info(
@@ -1470,6 +1480,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
         dummy_witness_stack = self.getScriptLockTxDummyWitness(prevout_script)
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         fee_rate_paid = fee_paid * 1000 // size
 
         self._log.info(
@@ -1531,6 +1542,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
             prevout_script
         )
         size = len(self.setTxSignature(tx.serialize(), dummy_witness_stack))
+        size += 1
         fee_rate_paid = fee_paid * 1000 // size
 
         self._log.info(
@@ -1781,13 +1793,16 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
         spend_actual_balance: bool = False,
         lock_tx_vout=None,
     ) -> bytes:
-        self._log.info("spendBLockTx %s:\n", chain_b_lock_txid.hex())
+        self._log.info(
+            f"spendBLockTx: {self._log.id(chain_b_lock_txid)} {lock_tx_vout}\n"
+        )
 
         Kbs = self.getPubkey(kbs)
         script_pk = self.getPkDest(Kbs)
 
         locked_n = None
         actual_value = None
+        try:
             wtx = self.rpc_wallet(
                 "gettransaction",
                 [
@@ -1800,13 +1815,19 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
                 actual_value = lock_tx.vout[locked_n].value
             else:
                 self._log.error(
-                f"spendBLockTx: Output not found in tx {chain_b_lock_txid.hex()}, "
+                    f"spendBLockTx: Output not found in tx {self._log.id(chain_b_lock_txid)}, "
                     f"script_pk={script_pk.hex()}, num_outputs={len(lock_tx.vout)}"
                 )
                 for i, out in enumerate(lock_tx.vout):
                     self._log.debug(
                         f"  vout[{i}]: value={out.value}, scriptPubKey={out.scriptPubKey.hex()}"
                     )
+        except Exception as e:  # noqa: F841
+            txout = self.rpc(
+                "gettxout", [chain_b_lock_txid.hex(), lock_tx_vout, 0, True]
+            )
+            actual_value = self.make_int(txout["value"])
+            locked_n = lock_tx_vout
 
         if (
             locked_n is not None
@@ -1815,7 +1836,7 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
         ):
             self._log.warning(
                 f"spendBLockTx: Stored vout {lock_tx_vout} differs from actual vout {locked_n} "
-                f"for tx {chain_b_lock_txid.hex()}"
+                f"for tx {self._log.id(chain_b_lock_txid)}"
             )
 
         ensure(locked_n is not None, "Output not found in tx")
@@ -1851,14 +1872,14 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
         try:
             txout = self.rpc("gettxout", [txid_hex, 0, 0, True])
         except Exception as e:  # noqa: F841
-            # self._log.warning('gettxout {}'.format(e))
+            # self._log.warning(f"gettxout {e}"))
             return None
 
         confirmations: int = (
             0 if "confirmations" not in txout else txout["confirmations"]
         )
         if confirmations >= self.blocks_confirmed:
-            block_height = self.getChainHeight() - confirmations  # TODO: Better way?
+            block_height = self.getChainHeight() - (confirmations - 1)
             return {"txid": txid_hex, "amount": 0, "height": block_height}
         return None
 
@@ -1873,3 +1894,101 @@ class DCRInterface(FeeValidator, Secp256k1Interface):
 
     def isTxNonFinalError(self, err_str: str) -> bool:
         return "locks on inputs not met" in err_str
+
+    def getChainMedianTime(self) -> int:
+        bestblockhash = self.rpc("getbestblockhash")
+        bestblockheader = self.rpc(
+            "getblockheader",
+            [
+                bestblockhash,
+            ],
+        )
+        return bestblockheader["mediantime"]
+
+    def getTxLocktime(self, tx_data: bytes) -> int:
+        tx_obj = self.loadTx(tx_data)
+        return tx_obj.locktime
+
+    def getTxInSequence(self, tx_data: bytes, vout: int) -> int:
+        tx_obj = self.loadTx(tx_data)
+        return tx_obj.vin[vout].sequence
+
+    def isCsvLockMature(
+        self,
+        lock_type: int,
+        encoded_sequence: int,
+        parent_block_height: Optional[int],
+        parent_block_time: Optional[int],
+        chain_height: Optional[int] = None,
+        chain_mtp: Optional[int] = None,
+    ) -> bool:
+        if parent_block_height is None or parent_block_height < 1:
+            return False
+        lock_value: int = self.decodeSequence(encoded_sequence)
+        if lock_type == TxLockTypes.SEQUENCE_LOCK_BLOCKS:
+            if chain_height is None:
+                chain_height = self.getChainHeight()
+            return chain_height + 1 >= parent_block_height + lock_value
+        if lock_type == TxLockTypes.SEQUENCE_LOCK_TIME:
+            if parent_block_time is None or parent_block_time < 1:
+                return False
+            if chain_mtp is None:
+                chain_mtp = self.getChainMedianTime()
+            return chain_mtp >= parent_block_time + lock_value
+        raise ValueError(f"Unknown lock type {lock_type}")
+
+    def isAbsLockTimeMature(
+        self,
+        nlocktime: int,
+        chain_height: Optional[int] = None,
+        chain_mtp: Optional[int] = None,
+    ) -> bool:
+        if nlocktime == 0:
+            return True
+        if nlocktime < 500000000:
+            if chain_height is None:
+                chain_height = self.getChainHeight()
+            return chain_height + 1 >= nlocktime
+        if chain_mtp is None:
+            chain_mtp = self.getChainMedianTime()
+        return chain_mtp >= nlocktime
+
+    def getTxOutInfo(
+        self, txid: bytes, n: int, include_mempool: bool = False
+    ) -> dict():
+        try:
+            txout = self.rpc("gettxout", [txid.hex(), n, 0, include_mempool])
+            confirmations: int = (
+                0 if "confirmations" not in txout else txout["confirmations"]
+            )
+            if confirmations < 1:
+                return None
+            chain_tip_height: int = 0
+            if "bestblock" in txout:
+                bestheader_info = self.getBlockHeader(txout["bestblock"])
+                chain_tip_height = bestheader_info["height"]
+            else:
+                chain_tip_height = self.getChainHeight()
+
+            if confirmations == 1:
+                header_info = bestheader_info
+            else:
+                block_height: int = chain_tip_height - (confirmations - 1)
+                header_info = self.getBlockHeaderFromHeight(block_height)
+
+            block_hash: bytes = bytes.fromhex(header_info["hash"])
+            return {
+                "block_hash": block_hash,
+                "block_height": header_info["height"],
+                "block_time": header_info["time"],
+            }
+
+        except Exception as e:  # noqa: F841
+            # self._log.warning(f"gettxout {e}")
+            return None
+
+    def is_transient_error(self, ex) -> bool:
+        str_error: str = str(ex).lower()
+        if "no information for transaction" in str_error:
+            return True
+        return super().is_transient_error(ex)

basicswap/interface/dcr/messages.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert

basicswap/interface/dcr/rpc.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -9,10 +10,10 @@ import traceback
 from basicswap.rpc import Jsonrpc
 
 
-def callrpc(rpc_port, auth, method, params=[], host="127.0.0.1"):
+def callrpc(rpc_port, auth, method, params=[], host="127.0.0.1", timeout=None):
     try:
         url = "http://{}@{}:{}/".format(auth, host, rpc_port)
-        x = Jsonrpc(url)
+        x = Jsonrpc(url, timeout=timeout if timeout else 10)
         x.__handler = None
         v = x.json_request(method, params)
         x.close()
@@ -41,7 +42,7 @@ def make_rpc_func(port, auth, host="127.0.0.1"):
     auth = auth
     host = host
 
-    def rpc_func(method, params=None):
-        return callrpc(port, auth, method, params, host)
+    def rpc_func(method, params=None, timeout=None):
+        return callrpc(port, auth, method, params, host, timeout=timeout)
 
     return rpc_func

basicswap/interface/doge.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 The BasicSwap developers

basicswap/interface/electrumx.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024-2026 The Basicswap developers

basicswap/interface/firo.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2023 tecnovert

basicswap/interface/ltc.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2023 tecnovert
@@ -103,7 +102,7 @@ class LTCInterface(BTCInterface):
                 continue
             if "desc" in u:
                 desc = u["desc"]
-                if self.using_segwit:
+                if self.using_segwit():
                     if self.use_p2shp2wsh():
                         if not desc.startswith("sh(wpkh"):
                             continue

basicswap/interface/nav.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2023 tecnovert

basicswap/interface/nmc.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2022 tecnovert

basicswap/interface/part.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
@@ -1300,6 +1299,17 @@ class PARTInterfaceBlind(PARTInterface):
             "fundrawtransactionfrom", ["blind", tx_hex, {}, outputs_info, options]
         )["hex"]
 
+    def getLockRefundVout(self, lock_refund_tx_data: bytes, vkbv: bytes):
+        lock_refund_tx_obj = self.rpc(
+            "decoderawtransaction", [lock_refund_tx_data.hex()]
+        )
+        # Nonce is derived from vkbv
+        nonce = self.getScriptLockRefundTxNonce(vkbv)
+
+        # Find the output of the lock refund tx to spend
+        spend_n, input_blinded_info = self.findOutputByNonce(lock_refund_tx_obj, nonce)
+        return spend_n
+
 
 class PARTInterfaceAnon(PARTInterface):
 

basicswap/interface/passthrough_btc.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2021 tecnovert

basicswap/interface/pivx.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022 tecnovert
@@ -171,3 +170,13 @@ class PIVXInterface(BTCInterface):
             block_height = self.getBlockHeader(rv["blockhash"])["height"]
             return {"txid": txid_hex, "amount": 0, "height": block_height}
         return None
+
+    def getChainMedianTime(self) -> int:
+        bestblockhash = self.rpc("getbestblockhash")
+        bestblockheader = self.rpc(
+            "getblockheader",
+            [
+                bestblockhash,
+            ],
+        )
+        return bestblockheader["mediantime"]

basicswap/interface/wow.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 The Basicswap developers

basicswap/interface/xmr.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert

basicswap/protocols/xmr_swap_1.py

@@ -50,11 +50,11 @@ def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key, cursor=None):
     try:
         use_cursor = self.openDB(cursor)
         bid, xmr_swap = self.getXmrBidFromSession(use_cursor, bid_id)
-        ensure(bid, "Bid not found: {}.".format(bid_id.hex()))
-        ensure(xmr_swap, "Adaptor-sig swap not found: {}.".format(bid_id.hex()))
+        ensure(bid, f"Bid not found: {self.log.id(bid_id)}.")
+        ensure(xmr_swap, f"Adaptor-sig swap not found: {self.log.id(bid_id)}.")
         offer, xmr_offer = self.getXmrOfferFromSession(use_cursor, bid.offer_id)
-        ensure(offer, "Offer not found: {}.".format(bid.offer_id.hex()))
-        ensure(xmr_offer, "Adaptor-sig offer not found: {}.".format(bid.offer_id.hex()))
+        ensure(offer, f"Offer not found: {self.log.id(bid.offer_id)}.")
+        ensure(xmr_offer, f"Adaptor-sig offer not found: {self.log.id(bid.offer_id)}.")
 
         # The no-script coin is always the follower
         reverse_bid: bool = self.is_reverse_ads_bid(offer.coin_from, offer.coin_to)
@@ -106,7 +106,10 @@ def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key, cursor=None):
             address_to = self.getReceiveAddressFromPool(
                 base_coin_to, bid_id, TxTypes.XMR_SWAP_B_LOCK_SPEND, use_cursor
             )
-        amount = bid.amount_to
+        amount: int = bid.amount_to
+        chain_b_fee_rate: int = (
+            xmr_offer.a_fee_rate if reverse_bid else xmr_offer.b_fee_rate
+        )
         lock_tx_vout = bid.getLockTXBVout()
         txid = ci_follower.spendBLockTx(
             xmr_swap.b_lock_tx_id,
@@ -114,7 +117,7 @@ def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key, cursor=None):
             xmr_swap.vkbv,
             vkbs,
             amount,
-            xmr_offer.b_fee_rate,
+            chain_b_fee_rate,
             bid.chain_b_height_start,
             spend_actual_balance=True,
             lock_tx_vout=lock_tx_vout,
@@ -209,7 +212,7 @@ class XmrSwapInterface(ProtocolInterface):
     )
 
     def genScriptLockTxScript(self, ci, Kal: bytes, Kaf: bytes, **kwargs) -> CScript:
-        # fallthrough to ci if genScriptLockTxScript is implemented there
+        # Fallthrough to ci if genScriptLockTxScript is implemented there
         if hasattr(ci, "genScriptLockTxScript") and callable(ci.genScriptLockTxScript):
             return ci.genScriptLockTxScript(ci, Kal, Kaf, **kwargs)
 
@@ -221,6 +224,11 @@ class XmrSwapInterface(ProtocolInterface):
     def getFundedInitiateTxTemplate(
         self, ci, amount: int, sub_fee: bool, feerate: int = None
     ) -> bytes:
+        if ci.coin_type() == Coins.BCH:
+            # Workaround, BCH getScriptDest() uses OP_HASH256
+            script: bytes = self.getMockScript()
+            addr_to: bytes = ci.getScriptDest(script)
+        else:
             addr_to = self.getMockScriptAddr(ci)
         funded_tx = ci.createRawFundedTransaction(
             addr_to, amount, sub_fee, lock_unspents=False, feerate=feerate
@@ -247,8 +255,12 @@ class XmrSwapInterface(ProtocolInterface):
         return lock_vout
 
     def promoteMockTx(self, ci, mock_tx: bytes, script: bytearray) -> bytearray:
-        mock_txo_script = self.getMockScriptScriptPubkey(ci)
-        real_txo_script = ci.getScriptDest(script)
+        if ci.coin_type() == Coins.BCH:
+            mock_script: bytes = self.getMockScript()
+            mock_txo_script: bytes = ci.getScriptDest(mock_script)
+        else:
+            mock_txo_script: bytes = self.getMockScriptScriptPubkey(ci)
+        real_txo_script: bytes = ci.getScriptDest(script)
 
         found: int = 0
         ctx = ci.loadTx(mock_tx, allow_witness=False)

doc/release-notes.md

@@ -22,6 +22,7 @@
     - Fixed feerate from other chain displayed for reversed swaps.
     - Added warning text for fee above 1.2 x local estimate.
     - Added subfee bid option.
+- Increase DCR fee estimate by 1 byte.
 
 
 0.14.5

tests/basicswap/common.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
@@ -163,7 +162,7 @@ def prepare_balance(
         post_json["type_to"] = type_to
     json_rv = read_json_api(
         port_take_from_node,
-        "wallets/{}/withdraw".format(coin_ticker.lower()),
+        f"wallets/{coin_ticker.lower()}/withdraw",
         post_json,
     )
     assert len(json_rv["txid"]) == 64
@@ -236,11 +235,17 @@ def wait_for_bid(
                     )
                 if isinstance(state, (list, tuple)):
                     if bid[5] in state:
+                        swap_client.log.debug(
+                            f"TEST: wait_for_bid found {bid_id.hex()}: Bid state {bid[5]}, target {state}."
+                        )
                         return
                     else:
                         continue
                 elif state is not None and state != bid[5]:
                     continue
+                swap_client.log.debug(
+                    f"TEST: wait_for_bid found {bid_id.hex()}: Bid state {bid[5]}, target {state}."
+                )
                 return
             else:
                 if i > 0 and i % 10 == 0:

tests/basicswap/common_xmr.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert

tests/basicswap/extended/test_dash.py

@@ -175,6 +175,7 @@ def prepareDir(datadir, nodeId, network_key, network_pubkey):
                 "datadir": node_dir,
                 "bindir": cfg.PARTICL_BINDIR,
                 "blocks_confirmed": 2,  # Faster testing
+                "wallet_name": "bsx_wallet",
             },
             "dash": {
                 "connection_type": "rpc",
@@ -184,6 +185,7 @@ def prepareDir(datadir, nodeId, network_key, network_pubkey):
                 "bindir": DASH_BINDIR,
                 "use_csv": True,
                 "use_segwit": False,
+                "wallet_name": "bsx_wallet",
             },
             "bitcoin": {
                 "connection_type": "rpc",
@@ -192,6 +194,7 @@ def prepareDir(datadir, nodeId, network_key, network_pubkey):
                 "datadir": btcdatadir,
                 "bindir": cfg.BITCOIN_BINDIR,
                 "use_segwit": True,
+                "wallet_name": "bsx_wallet",
             },
         },
         "check_progress_seconds": 2,
@@ -285,7 +288,7 @@ class Test(unittest.TestCase):
 
     @classmethod
     def setUpClass(cls):
-        super(Test, cls).setUpClass()
+        super().setUpClass()
 
         k = PrivateKey()
         cls.network_key = toWIF(PREFIX_SECRET_KEY_REGTEST, k.secret)
@@ -409,15 +412,15 @@ class Test(unittest.TestCase):
 
             waitForRPC(dashRpc, delay_event, rpc_command="getblockchaininfo")
             if len(dashRpc("listwallets")) < 1:
-                dashRpc("createwallet wbsx_wallet")
+                dashRpc("createwallet bsx_wallet")
 
             sc.start()
 
         waitForRPC(dashRpc, delay_event)
         num_blocks = 500
-        logging.info("Mining %d dash blocks", num_blocks)
+        logging.info(f"Mining {num_blocks} dash blocks")
         cls.dash_addr = dashRpc("getnewaddress mining_addr")
-        dashRpc("generatetoaddress {} {}".format(num_blocks, cls.dash_addr))
+        dashRpc(f"generatetoaddress {num_blocks} {cls.dash_addr}")
 
         ro = dashRpc("getblockchaininfo")
         try:
@@ -431,8 +434,8 @@ class Test(unittest.TestCase):
 
         waitForRPC(btcRpc, delay_event)
         cls.btc_addr = btcRpc("getnewaddress mining_addr bech32")
-        logging.info("Mining %d Bitcoin blocks to %s", num_blocks, cls.btc_addr)
-        btcRpc("generatetoaddress {} {}".format(num_blocks, cls.btc_addr))
+        logging.info(f"Mining {num_blocks} Bitcoin blocks to {cls.btc_addr}")
+        btcRpc(f"generatetoaddress {num_blocks} {cls.btc_addr}")
 
         ro = btcRpc("getblockchaininfo")
         checkForks(ro)
@@ -449,7 +452,7 @@ class Test(unittest.TestCase):
 
         # Wait for height, or sequencelock is thrown off by genesis blocktime
         num_blocks = 3
-        logging.info("Waiting for Particl chain height %d", num_blocks)
+        logging.info(f"Waiting for Particl chain height {num_blocks}")
         for i in range(60):
             particl_blocks = cls.swap_clients[0].callrpc("getblockcount")
             print("particl_blocks", particl_blocks)
@@ -473,7 +476,7 @@ class Test(unittest.TestCase):
         cls.swap_clients.clear()
         cls.daemons.clear()
 
-        super(Test, cls).tearDownClass()
+        super().tearDownClass()
 
     def test_02_part_dash(self):
         logging.info("---------- Test PART to DASH")
@@ -683,9 +686,9 @@ class Test(unittest.TestCase):
         offer_id = swap_clients[0].postOffer(
             Coins.DASH,
             Coins.BTC,
-            0.001 * COIN,
+            0.01 * COIN,
             1.0 * COIN,
-            0.001 * COIN,
+            0.01 * COIN,
             SwapTypes.SELLER_FIRST,
         )
 
@@ -709,7 +712,7 @@ class Test(unittest.TestCase):
             del swap_clients[0].getChainClientSettings(Coins.DASH)["override_feerate"]
 
     def test_08_wallet(self):
-        logging.info("---------- Test {} wallet".format(self.test_coin_from.name))
+        logging.info(f"---------- Test {self.test_coin_from.name} wallet")
 
         logging.info("Test withdrawal")
         addr = dashRpc('getnewaddress "Withdrawal test"')

tests/basicswap/extended/test_dcr.py

@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
-# Copyright (c) 2024-2025 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -75,24 +75,6 @@ def make_rpc_func(node_id, base_rpc_port):
     return rpc_func
 
 
-def wait_for_dcr_height(http_port, num_blocks=3):
-    logging.info("Waiting for DCR chain height %d", num_blocks)
-    for i in range(60):
-        if test_delay_event.is_set():
-            raise ValueError("Test stopped.")
-        try:
-            wallet = read_json_api(http_port, "wallets/dcr")
-            decred_blocks = wallet["blocks"]
-            print("decred_blocks", decred_blocks)
-            if decred_blocks >= num_blocks:
-                return
-        except Exception as e:
-            print("Error reading wallets", str(e))
-
-        test_delay_event.wait(1)
-    raise ValueError(f"wait_for_decred_blocks failed http_port: {http_port}")
-
-
 def run_test_success_path(self, coin_from: Coins, coin_to: Coins):
     logging.info(f"---------- Test {coin_from.name} to {coin_to.name}")
 
@@ -765,14 +747,14 @@ class Test(BaseTest):
     @classmethod
     def tearDownClass(cls):
         logging.info("Finalising Decred Test")
-        super(Test, cls).tearDownClass()
+        super().tearDownClass()
 
         stopDaemons(cls.dcr_daemons)
         cls.dcr_daemons.clear()
 
     @classmethod
     def coins_loop(cls):
-        super(Test, cls).coins_loop()
+        super().coins_loop()
         ci0 = cls.swap_clients[0].ci(cls.test_coin)
 
         num_passed: int = 0
@@ -878,15 +860,16 @@ class Test(BaseTest):
             "use_csv": True,
             "use_segwit": True,
             "blocks_confirmed": 1,
+            "min_relay_fee": 0.00001,
         }
 
     def test_0001_decred_address(self):
-        logging.info("---------- Test {}".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name}")
 
         coin_settings = {"rpcport": 0, "rpcauth": "none"}
         coin_settings.update(REQUIRED_SETTINGS)
 
-        ci = DCRInterface(coin_settings, "mainnet")
+        ci = DCRInterface(coin_settings, "mainnet", self.swap_clients[0])
 
         k = ci.getNewRandomKey()
         K = ci.getPubkey(k)
@@ -914,7 +897,7 @@ class Test(BaseTest):
                 assert hash160(masterpubkey_data) == seed_hash
 
     def test_001_segwit(self):
-        logging.info("---------- Test {} segwit".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} segwit")
 
         swap_clients = self.swap_clients
         ci0 = swap_clients[0].ci(self.test_coin)
@@ -972,7 +955,7 @@ class Test(BaseTest):
         assert f_decoded["txid"] == ctx.TxHash().hex()
 
     def test_003_signature_hash(self):
-        logging.info("---------- Test {} signature_hash".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} signature_hash")
         # Test that signing a transaction manually produces the same result when signed with the wallet
 
         swap_clients = self.swap_clients
@@ -1047,7 +1030,7 @@ class Test(BaseTest):
         assert len(sent_txid) == 64
 
     def test_004_csv(self):
-        logging.info("---------- Test {} csv".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} csv")
         swap_clients = self.swap_clients
         ci0 = swap_clients[0].ci(self.test_coin)
 
@@ -1161,7 +1144,7 @@ class Test(BaseTest):
         assert sent_spend_txid is not None
 
     def test_005_watchonly(self):
-        logging.info("---------- Test {} watchonly".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} watchonly")
 
         swap_clients = self.swap_clients
         ci0 = swap_clients[0].ci(self.test_coin)
@@ -1261,7 +1244,7 @@ class Test(BaseTest):
         assert found_txid is not None
 
     def test_008_gettxout(self):
-        logging.info("---------- Test {} gettxout".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} gettxout")
 
         ci0 = self.swap_clients[0].ci(self.test_coin)
 
@@ -1373,7 +1356,7 @@ class Test(BaseTest):
         assert amount_proved >= require_amount
 
     def test_009_wallet_encryption(self):
-        logging.info("---------- Test {} wallet encryption".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} wallet encryption")
 
         for coin in ("part", "dcr", "xmr"):
             jsw = read_json_api(1800, f"wallets/{coin}")
@@ -1412,7 +1395,7 @@ class Test(BaseTest):
             assert jsw["locked"] is False
 
     def test_010_txn_size(self):
-        logging.info("---------- Test {} txn size".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} txn size")
 
         swap_clients = self.swap_clients
         ci = swap_clients[0].ci(self.test_coin)

tests/basicswap/extended/test_doge.py

@@ -179,6 +179,7 @@ class Test(TestFunctions):
 
     @classmethod
     def prepareExtraCoins(cls):
+        super().prepareExtraCoins()
         if cls.restore_instance:
             void_block_rewards_pubkey = cls.getRandomPubkey()
             cls.doge_addr = (
@@ -232,7 +233,7 @@ class Test(TestFunctions):
     @classmethod
     def tearDownClass(cls):
         logging.info("Finalising DOGE Test")
-        super(Test, cls).tearDownClass()
+        super().tearDownClass()
 
         stopDaemons(cls.doge_daemons)
         cls.doge_daemons.clear()
@@ -251,11 +252,12 @@ class Test(TestFunctions):
             "use_segwit": False,
             "blocks_confirmed": 1,
             "min_relay_fee": 0.01,  # RECOMMENDED_MIN_TX_FEE
+            "wallet_name": "bsx_wallet",
         }
 
     @classmethod
     def coins_loop(cls):
-        super(Test, cls).coins_loop()
+        super().coins_loop()
         if cls.pause_chain:
             return
         ci0 = cls.swap_clients[0].ci(cls.test_coin)

tests/basicswap/extended/test_doge_with_prepare.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-# Copyright (c) 2024 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -12,7 +12,7 @@ mkdir -p ${TEST_PATH}/bin
 cp -r ~/tmp/basicswap_bin/* ${TEST_PATH}/bin
 export PYTHONPATH=$(pwd)
 export TEST_COINS_LIST='bitcoin,dogecoin'
-python tests/basicswap/extended/test_doge.py
+python tests/basicswap/extended/test_doge_with_prepare.py
 
 """
 
@@ -27,11 +27,9 @@ from tests.basicswap.extended.test_xmr_persistent import (
     BaseTestWithPrepare,
     UI_PORT,
 )
-from tests.basicswap.extended.test_scripts import (
-    wait_for_offers,
-)
 from tests.basicswap.util import (
     read_json_api,
+    wait_for_offers,
 )
 
 logger = logging.getLogger()
@@ -50,11 +48,11 @@ def wait_for_bid(
 
         bid = read_json_api(UI_PORT + node_id, f"bids/{bid_id}")
 
-        if "state" not in bid:
+        if "bid_state" not in bid:
             continue
         if state is None:
             return
-        if bid["state"].lower() == state.lower():
+        if bid["bid_state"].lower() == state.lower():
             return
     raise ValueError("wait_for_bid failed")
 
@@ -101,8 +99,9 @@ def prepare_balance(
 
 
 class DOGETest(BaseTestWithPrepare):
-    def test_a(self):
+    __test__ = True
 
+    def test_a(self):
         amount_from = 10.0
         offer_json = {
             "coin_from": "btc",
@@ -114,10 +113,8 @@ class DOGETest(BaseTestWithPrepare):
             "automation_strat_id": 1,
         }
         offer_id = read_json_api(UI_PORT + 0, "offers/new", offer_json)["offer_id"]
-        logging.debug(f"offer_id {offer_id}")
 
         prepare_balance(self.delay_event, 1, 0, "DOGE", 1000.0)
-
         wait_for_offers(self.delay_event, 1, 1, offer_id)
 
         post_json = {"offer_id": offer_id, "amount_from": amount_from}

tests/basicswap/extended/test_firo.py

@@ -104,7 +104,7 @@ def prepareDataDir(
         fp.write("debug=1\n")
         fp.write("debugexclude=libevent\n")
 
-        fp.write("fallbackfee=0.01\n")
+        fp.write("fallbackfee=0.0002\n")
         fp.write("acceptnonstdtxn=0\n")
 
         """

tests/basicswap/extended/test_key_paths.py

@@ -29,6 +29,7 @@ import unittest
 from tests.basicswap.util import (
     read_json_api,
     waitForServer,
+    UI_PORT,
 )
 
 logger = logging.getLogger()
@@ -37,9 +38,6 @@ if not len(logger.handlers):
     logger.addHandler(logging.StreamHandler(sys.stdout))
 
 
-PORT_OFS = int(os.getenv("PORT_OFS", 1))
-UI_PORT = 12700 + PORT_OFS
-
 ELECTRUM_PATH = os.getenv("ELECTRUM_PATH")
 ELECTRUM_DATADIR = os.getenv("ELECTRUM_DATADIR")
 

tests/basicswap/extended/test_pivx.py

@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2023 tecnovert
-# Copyright (c) 2024-2025 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -11,22 +11,14 @@ basicswap]$ python tests/basicswap/extended/test_pivx.py
 
 """
 
-import json
 import logging
 import os
 import random
-import shutil
-import signal
 import sys
-import threading
-import time
 import unittest
 
-from coincurve.keys import PrivateKey
-
 import basicswap.config as cfg
 from basicswap.basicswap import (
-    BasicSwap,
     Coins,
     SwapTypes,
     BidStates,
@@ -39,30 +31,27 @@ from basicswap.util import (
 from basicswap.basicswap_util import (
     TxLockTypes,
 )
-from basicswap.util.address import (
-    toWIF,
-)
 from tests.basicswap.util import (
     read_json_api,
 )
 from tests.basicswap.common import (
     callrpc_cli,
-    checkForks,
     stopDaemons,
     wait_for_bid,
     wait_for_offer,
     wait_for_balance,
-    wait_for_unspent,
     wait_for_in_progress,
     wait_for_bid_tx_state,
-    TEST_HTTP_HOST,
     TEST_HTTP_PORT,
-    BASE_PORT,
-    BASE_RPC_PORT,
-    BASE_ZMQ_PORT,
-    PREFIX_SECRET_KEY_REGTEST,
     waitForRPC,
+    make_rpc_func,
 )
+from tests.basicswap.test_xmr import (
+    BaseTest,
+    test_delay_event as delay_event,
+    callnoderpc,
+)
+from basicswap.contrib.rpcauth import generate_salt, password_to_hmac
 from basicswap.bin.run import startDaemon
 from basicswap.bin.prepare import downloadPIVXParams
 
@@ -72,11 +61,6 @@ if not len(logger.handlers):
     logger.addHandler(logging.StreamHandler(sys.stdout))
 
 NUM_NODES = 3
-PIVX_NODE = 3
-BTC_NODE = 4
-
-delay_event = threading.Event()
-stop_test = False
 
 PIVX_BINDIR = os.path.expanduser(
     os.getenv("PIVX_BINDIR", os.path.join(cfg.DEFAULT_TEST_BINDIR, "pivx"))
@@ -85,345 +69,123 @@ PIVXD = os.getenv("PIVXD", "pivxd" + cfg.bin_suffix)
 PIVX_CLI = os.getenv("PIVX_CLI", "pivx-cli" + cfg.bin_suffix)
 PIVX_TX = os.getenv("PIVX_TX", "pivx-tx" + cfg.bin_suffix)
 
-
-def prepareOtherDir(datadir, nodeId, conf_file="pivx.conf"):
-    node_dir = os.path.join(datadir, str(nodeId))
-    if not os.path.exists(node_dir):
-        os.makedirs(node_dir)
-    filePath = os.path.join(node_dir, conf_file)
-
-    with open(filePath, "w+") as fp:
-        fp.write("regtest=1\n")
-        fp.write("[regtest]\n")
-        fp.write("port=" + str(BASE_PORT + nodeId) + "\n")
-        fp.write("rpcport=" + str(BASE_RPC_PORT + nodeId) + "\n")
-
-        fp.write("daemon=0\n")
-        fp.write("printtoconsole=0\n")
-        fp.write("server=1\n")
-        fp.write("discover=0\n")
-        fp.write("listenonion=0\n")
-        fp.write("bind=127.0.0.1\n")
-        fp.write("findpeers=0\n")
-        fp.write("debug=1\n")
-        fp.write("debugexclude=libevent\n")
-
-        fp.write("fallbackfee=0.01\n")
-        fp.write("acceptnonstdtxn=0\n")
-
-        if conf_file == "pivx.conf":
-            params_dir = os.path.join(datadir, "pivx-params")
-            downloadPIVXParams(params_dir)
-            fp.write(f"paramsdir={params_dir}\n")
-
-        if conf_file == "bitcoin.conf":
-            fp.write("wallet=bsx_wallet\n")
+PIVX_BASE_PORT = 34832
+PIVX_BASE_RPC_PORT = 35832
+PIVX_BASE_ZMQ_PORT = 36832
 
 
-def prepareDir(datadir, nodeId, network_key, network_pubkey):
-    node_dir = os.path.join(datadir, str(nodeId))
-    if not os.path.exists(node_dir):
-        os.makedirs(node_dir)
-    filePath = os.path.join(node_dir, "particl.conf")
-
-    with open(filePath, "w+") as fp:
-        fp.write("regtest=1\n")
-        fp.write("[regtest]\n")
-        fp.write("port=" + str(BASE_PORT + nodeId) + "\n")
-        fp.write("rpcport=" + str(BASE_RPC_PORT + nodeId) + "\n")
-
-        fp.write("daemon=0\n")
-        fp.write("printtoconsole=0\n")
-        fp.write("server=1\n")
-        fp.write("discover=0\n")
-        fp.write("listenonion=0\n")
-        fp.write("bind=127.0.0.1\n")
-        fp.write("findpeers=0\n")
-        fp.write("debug=1\n")
-        fp.write("debugexclude=libevent\n")
-        fp.write("zmqpubsmsg=tcp://127.0.0.1:" + str(BASE_ZMQ_PORT + nodeId) + "\n")
-        fp.write("wallet=bsx_wallet\n")
-        fp.write("fallbackfee=0.01\n")
-
-        fp.write("acceptnonstdtxn=0\n")
-        fp.write("minstakeinterval=5\n")
-        fp.write("smsgsregtestadjust=0\n")
-
-        for i in range(0, NUM_NODES):
-            if nodeId == i:
-                continue
-            fp.write("addnode=127.0.0.1:%d\n" % (BASE_PORT + i))
-
-        if nodeId < 2:
-            fp.write("spentindex=1\n")
-            fp.write("txindex=1\n")
-
-    basicswap_dir = os.path.join(datadir, str(nodeId), "basicswap")
-    if not os.path.exists(basicswap_dir):
-        os.makedirs(basicswap_dir)
-
-    pivxdatadir = os.path.join(datadir, str(PIVX_NODE))
-    btcdatadir = os.path.join(datadir, str(BTC_NODE))
-    settings_path = os.path.join(basicswap_dir, cfg.CONFIG_FILENAME)
-    settings = {
-        "debug": True,
-        "zmqhost": "tcp://127.0.0.1",
-        "zmqport": BASE_ZMQ_PORT + nodeId,
-        "htmlhost": TEST_HTTP_HOST,
-        "htmlport": TEST_HTTP_PORT + nodeId,
-        "network_key": network_key,
-        "network_pubkey": network_pubkey,
-        "chainclients": {
-            "particl": {
-                "connection_type": "rpc",
-                "manage_daemon": False,
-                "rpcport": BASE_RPC_PORT + nodeId,
-                "datadir": node_dir,
-                "bindir": cfg.PARTICL_BINDIR,
-                "blocks_confirmed": 2,  # Faster testing
-                "wallet_name": "bsx_wallet",
-            },
-            "pivx": {
-                "connection_type": "rpc",
-                "manage_daemon": False,
-                "rpcport": BASE_RPC_PORT + PIVX_NODE,
-                "datadir": pivxdatadir,
-                "bindir": PIVX_BINDIR,
-                "use_csv": False,
-                "use_segwit": False,
-                "wallet_name": "",
-            },
-            "bitcoin": {
-                "connection_type": "rpc",
-                "manage_daemon": False,
-                "rpcport": BASE_RPC_PORT + BTC_NODE,
-                "datadir": btcdatadir,
-                "bindir": cfg.BITCOIN_BINDIR,
-                "use_segwit": True,
-                "wallet_name": "bsx_wallet",
-            },
-        },
-        "check_progress_seconds": 2,
-        "check_watched_seconds": 4,
-        "check_expired_seconds": 60,
-        "check_events_seconds": 1,
-        "check_xmr_swaps_seconds": 1,
-        "min_delay_event": 1,
-        "max_delay_event": 3,
-        "min_delay_event_short": 1,
-        "max_delay_event_short": 3,
-        "min_delay_retry": 2,
-        "max_delay_retry": 10,
-        "restrict_unknown_seed_wallets": False,
-        "check_updates": False,
-    }
-    with open(settings_path, "w") as fp:
-        json.dump(settings, fp, indent=4)
-
-
-def partRpc(cmd, node_id=0):
-    return callrpc_cli(
-        cfg.PARTICL_BINDIR,
-        os.path.join(cfg.TEST_DATADIRS, str(node_id)),
-        "regtest",
-        cmd,
-        cfg.PARTICL_CLI,
-    )
-
-
-def btcRpc(cmd):
-    return callrpc_cli(
-        cfg.BITCOIN_BINDIR,
-        os.path.join(cfg.TEST_DATADIRS, str(BTC_NODE)),
-        "regtest",
-        cmd,
-        cfg.BITCOIN_CLI,
-    )
-
-
-def pivxRpc(cmd):
+def pivxCli(cmd, node_id=0):
     return callrpc_cli(
         PIVX_BINDIR,
-        os.path.join(cfg.TEST_DATADIRS, str(PIVX_NODE)),
+        os.path.join(cfg.TEST_DATADIRS, "pivx_" + str(node_id)),
         "regtest",
         cmd,
         PIVX_CLI,
     )
 
 
-def signal_handler(sig, frame):
-    global stop_test
-    os.write(sys.stdout.fileno(), f"Signal {sig} detected.\n".encode("utf-8"))
-    stop_test = True
-    delay_event.set()
+def prepareDataDir(
+    datadir, node_id, conf_file, dir_prefix, base_p2p_port, base_rpc_port, num_nodes=3
+):
+    node_dir = os.path.join(datadir, dir_prefix + str(node_id))
+    if not os.path.exists(node_dir):
+        os.makedirs(node_dir)
+    cfg_file_path = os.path.join(node_dir, conf_file)
+    if os.path.exists(cfg_file_path):
+        return
+    with open(cfg_file_path, "w+") as fp:
+        fp.write("regtest=1\n")
+        fp.write("[regtest]\n")
+        fp.write("port=" + str(base_p2p_port + node_id) + "\n")
+        fp.write("rpcport=" + str(base_rpc_port + node_id) + "\n")
+
+        salt = generate_salt(16)
+        fp.write(
+            "rpcauth={}:{}${}\n".format(
+                "test" + str(node_id),
+                salt,
+                password_to_hmac(salt, "test_pass" + str(node_id)),
+            )
+        )
+
+        fp.write("daemon=0\n")
+        fp.write("printtoconsole=0\n")
+        fp.write("server=1\n")
+        fp.write("discover=0\n")
+        fp.write("listenonion=0\n")
+        fp.write("bind=127.0.0.1\n")
+        fp.write("findpeers=0\n")
+        fp.write("debug=1\n")
+        fp.write("debugexclude=libevent\n")
+
+        fp.write("fallbackfee=0.01\n")
+        fp.write("acceptnonstdtxn=0\n")
+
+        params_dir = os.path.join(datadir, "pivx-params")
+        downloadPIVXParams(params_dir)
+        fp.write(f"paramsdir={params_dir}\n")
+
+        for i in range(0, num_nodes):
+            if node_id == i:
+                continue
+            fp.write("addnode=127.0.0.1:{}\n".format(base_p2p_port + i))
+
+    return node_dir
 
 
-def run_coins_loop(cls):
-    while not stop_test:
-        try:
-            pivxRpc("generatetoaddress 1 {}".format(cls.pivx_addr))
-            btcRpc("generatetoaddress 1 {}".format(cls.btc_addr))
-        except Exception as e:
-            logging.warning("run_coins_loop " + str(e))
-        time.sleep(1.0)
-
-
-def run_loop(self):
-    while not stop_test:
-        for c in self.swap_clients:
-            c.update()
-        time.sleep(1)
-
-
-def make_part_cli_rpc_func(node_id):
-    node_id = node_id
-
-    def rpc_func(method, params=None, wallet=None):
-        cmd = method
-        if params:
-            for p in params:
-                cmd += ' "' + p + '"'
-        return partRpc(cmd, node_id)
-
-    return rpc_func
-
-
-class Test(unittest.TestCase):
+class Test(BaseTest):
+    __test__ = True
     test_coin_from = Coins.PIVX
+    pivx_daemons = []
+    pivx_addr = None
+    start_ltc_nodes = False
+    start_xmr_nodes = False
 
     @classmethod
-    def setUpClass(cls):
-        super(Test, cls).setUpClass()
-
-        k = PrivateKey()
-        cls.network_key = toWIF(PREFIX_SECRET_KEY_REGTEST, k.secret)
-        cls.network_pubkey = k.public_key.format().hex()
-
-        if os.path.isdir(cfg.TEST_DATADIRS):
-            logging.info("Removing " + cfg.TEST_DATADIRS)
-            for name in os.listdir(cfg.TEST_DATADIRS):
-                if name == "pivx-params":
-                    continue
-                fullpath = os.path.join(cfg.TEST_DATADIRS, name)
-                if os.path.isdir(fullpath):
-                    shutil.rmtree(fullpath)
-                else:
-                    os.remove(fullpath)
-
-        for i in range(NUM_NODES):
-            prepareDir(cfg.TEST_DATADIRS, i, cls.network_key, cls.network_pubkey)
-
-        prepareOtherDir(cfg.TEST_DATADIRS, PIVX_NODE)
-        prepareOtherDir(cfg.TEST_DATADIRS, BTC_NODE, "bitcoin.conf")
-
-        cls.daemons = []
-        cls.swap_clients = []
-
-        btc_data_dir = os.path.join(cfg.TEST_DATADIRS, str(BTC_NODE))
-        if os.path.exists(os.path.join(cfg.BITCOIN_BINDIR, "bitcoin-wallet")):
-            try:
-                callrpc_cli(
-                    cfg.BITCOIN_BINDIR,
-                    btc_data_dir,
-                    "regtest",
-                    "-wallet=bsx_wallet -legacy create",
-                    "bitcoin-wallet",
+    def prepareExtraDataDir(cls, i):
+        extra_opts = []
+        if not cls.restore_instance:
+            prepareDataDir(
+                cfg.TEST_DATADIRS,
+                i,
+                "pivx.conf",
+                "pivx_",
+                base_p2p_port=PIVX_BASE_PORT,
+                base_rpc_port=PIVX_BASE_RPC_PORT,
             )
-            except Exception:
-                callrpc_cli(
-                    cfg.BITCOIN_BINDIR,
-                    btc_data_dir,
-                    "regtest",
-                    "-wallet=bsx_wallet create",
-                    "bitcoin-wallet",
-                )
-        cls.daemons.append(startDaemon(btc_data_dir, cfg.BITCOIN_BINDIR, cfg.BITCOIND))
-        logging.info("Started %s %d", cfg.BITCOIND, cls.daemons[-1].handle.pid)
-        cls.daemons.append(
+        cls.pivx_daemons.append(
             startDaemon(
-                os.path.join(cfg.TEST_DATADIRS, str(PIVX_NODE)), PIVX_BINDIR, PIVXD
+                os.path.join(cfg.TEST_DATADIRS, "pivx_" + str(i)),
+                PIVX_BINDIR,
+                PIVXD,
+                opts=extra_opts,
             )
         )
-        logging.info("Started %s %d", PIVXD, cls.daemons[-1].handle.pid)
+        logging.info("Started %s %d", PIVXD, cls.pivx_daemons[-1].handle.pid)
 
-        for i in range(NUM_NODES):
-            data_dir = os.path.join(cfg.TEST_DATADIRS, str(i))
-            if os.path.exists(os.path.join(cfg.PARTICL_BINDIR, "particl-wallet")):
-                try:
-                    callrpc_cli(
-                        cfg.PARTICL_BINDIR,
-                        data_dir,
-                        "regtest",
-                        "-wallet=bsx_wallet -legacy create",
-                        "particl-wallet",
-                    )
-                except Exception:
-                    callrpc_cli(
-                        cfg.PARTICL_BINDIR,
-                        data_dir,
-                        "regtest",
-                        "-wallet=bsx_wallet create",
-                        "particl-wallet",
-                    )
-            cls.daemons.append(startDaemon(data_dir, cfg.PARTICL_BINDIR, cfg.PARTICLD))
-            logging.info("Started %s %d", cfg.PARTICLD, cls.daemons[-1].handle.pid)
+        waitForRPC(make_rpc_func(i, base_rpc_port=PIVX_BASE_RPC_PORT), delay_event)
 
-        for i in range(NUM_NODES):
-            rpc = make_part_cli_rpc_func(i)
-            waitForRPC(rpc, delay_event)
-            if i == 0:
-                rpc(
-                    "extkeyimportmaster",
-                    [
-                        "abandon baby cabbage dad eager fabric gadget habit ice kangaroo lab absorb"
-                    ],
+    @classmethod
+    def addPIDInfo(cls, sc, i):
+        sc.setDaemonPID(Coins.PIVX, cls.pivx_daemons[i].handle.pid)
+
+    @classmethod
+    def prepareExtraCoins(cls):
+
+        if cls.restore_instance:
+            void_block_rewards_pubkey = cls.getRandomPubkey()
+            cls.pivx_addr = (
+                cls.swap_clients[0]
+                .ci(Coins.PIVX)
+                .pubkey_to_address(void_block_rewards_pubkey)
             )
-            elif i == 1:
-                rpc(
-                    "extkeyimportmaster",
-                    [
-                        "pact mammal barrel matrix local final lecture chunk wasp survey bid various book strong spread fall ozone daring like topple door fatigue limb olympic",
-                        "",
-                        "true",
-                    ],
-                )
-                rpc("getnewextaddress", ["lblExtTest"])
-                rpc("rescanblockchain")
         else:
-                rpc("extkeyimportmaster", [rpc("mnemonic", ["new"])["master"]])
-            rpc(
-                "walletsettings",
-                [
-                    "stakingoptions",
-                    json.dumps(
-                        {"stakecombinethreshold": 100, "stakesplitthreshold": 200}
-                    ).replace('"', '\\"'),
-                ],
-            )
-            rpc("reservebalance", ["false"])
-
-            basicswap_dir = os.path.join(
-                os.path.join(cfg.TEST_DATADIRS, str(i)), "basicswap"
-            )
-            settings_path = os.path.join(basicswap_dir, cfg.CONFIG_FILENAME)
-            with open(settings_path) as fs:
-                settings = json.load(fs)
-            sc = BasicSwap(
-                basicswap_dir, settings, "regtest", log_name="BasicSwap{}".format(i)
-            )
-            cls.swap_clients.append(sc)
-            sc.setDaemonPID(Coins.BTC, cls.daemons[0].handle.pid)
-            sc.setDaemonPID(Coins.PIVX, cls.daemons[1].handle.pid)
-            sc.setDaemonPID(Coins.PART, cls.daemons[2 + i].handle.pid)
-            sc.start()
-
-        waitForRPC(pivxRpc, delay_event)
             num_blocks = 1352  # CHECKLOCKTIMEVERIFY soft-fork activates at (regtest) block height 1351.
-        logging.info("Mining %d pivx blocks", num_blocks)
-        cls.pivx_addr = pivxRpc("getnewaddress mining_addr")
-        pivxRpc("generatetoaddress {} {}".format(num_blocks, cls.pivx_addr))
+            logging.info(f"Mining {num_blocks} pivx blocks")
+            cls.pivx_addr = pivxCli("getnewaddress mining_addr")
+            pivxCli(f"generatetoaddress {num_blocks} {cls.pivx_addr}")
 
-        ro = pivxRpc("getblockchaininfo")
+            ro = pivxCli("getblockchaininfo")
             try:
                 assert ro["bip9_softforks"]["csv"]["status"] == "active"
             except Exception:
@@ -433,47 +195,47 @@ class Test(unittest.TestCase):
             except Exception:
                 logging.info("pivx: segwit is not active")
 
-        waitForRPC(btcRpc, delay_event)
-        cls.btc_addr = btcRpc("getnewaddress mining_addr bech32")
-        logging.info("Mining %d Bitcoin blocks to %s", num_blocks, cls.btc_addr)
-        btcRpc("generatetoaddress {} {}".format(num_blocks, cls.btc_addr))
-
-        ro = btcRpc("getblockchaininfo")
-        checkForks(ro)
-
-        signal.signal(signal.SIGINT, signal_handler)
-        cls.update_thread = threading.Thread(target=run_loop, args=(cls,))
-        cls.update_thread.start()
-
-        cls.coins_update_thread = threading.Thread(target=run_coins_loop, args=(cls,))
-        cls.coins_update_thread.start()
-
-        # Wait for height, or sequencelock is thrown off by genesis blocktime
-        num_blocks = 3
-        logging.info("Waiting for Particl chain height %d", num_blocks)
-        for i in range(60):
-            particl_blocks = cls.swap_clients[0].callrpc("getblockcount")
-            print("particl_blocks", particl_blocks)
-            if particl_blocks >= num_blocks:
-                break
-            delay_event.wait(1)
-        assert particl_blocks >= num_blocks
-
     @classmethod
     def tearDownClass(cls):
-        global stop_test
-        logging.info("Finalising")
-        stop_test = True
-        cls.update_thread.join()
-        cls.coins_update_thread.join()
-        for c in cls.swap_clients:
-            c.finalise()
+        logging.info("Finalising PIVX Test")
+        super().tearDownClass()
 
-        stopDaemons(cls.daemons)
-        cls.swap_clients.clear()
-        cls.daemons.clear()
+        stopDaemons(cls.pivx_daemons)
+        cls.pivx_daemons.clear()
 
-        super(Test, cls).tearDownClass()
+    @classmethod
+    def addCoinSettings(cls, settings, datadir, node_id):
+        settings["chainclients"]["pivx"] = {
+            "connection_type": "rpc",
+            "manage_daemon": False,
+            "rpcport": PIVX_BASE_RPC_PORT + node_id,
+            "rpcuser": "test" + str(node_id),
+            "rpcpassword": "test_pass" + str(node_id),
+            "datadir": os.path.join(datadir, "pivx_" + str(node_id)),
+            "bindir": PIVX_BINDIR,
+            "use_csv": False,
+            "use_segwit": False,
+            "wallet_name": "",
+        }
+
+    @classmethod
+    def coins_loop(cls):
+        super().coins_loop()
+        callnoderpc(
+            0, "generatetoaddress", [1, cls.pivx_addr], base_rpc_port=PIVX_BASE_RPC_PORT
+        )
+
+    @classmethod
+    def prepareBalances(cls):
+        super().prepareBalances()
+
+        cls.prepare_balance(
+            cls,
+            Coins.PIVX,
+            10000.0,
+            1801,
+            1800,
+        )
 
     def test_02_part_pivx(self):
         logging.info("---------- Test PART to PIVX")
@@ -500,7 +262,7 @@ class Test(unittest.TestCase):
         wait_for_in_progress(delay_event, swap_clients[1], bid_id, sent=True)
 
         wait_for_bid(
-            delay_event, swap_clients[0], bid_id, BidStates.SWAP_COMPLETED, wait_for=60
+            delay_event, swap_clients[0], bid_id, BidStates.SWAP_COMPLETED, wait_for=80
         )
         wait_for_bid(
             delay_event,
@@ -508,7 +270,7 @@ class Test(unittest.TestCase):
             bid_id,
             BidStates.SWAP_COMPLETED,
             sent=True,
-            wait_for=60,
+            wait_for=80,
         )
 
         js_0 = read_json_api(1800)
@@ -548,7 +310,7 @@ class Test(unittest.TestCase):
             wait_for=60,
         )
         wait_for_bid(
-            delay_event, swap_clients[1], bid_id, BidStates.SWAP_COMPLETED, wait_for=60
+            delay_event, swap_clients[1], bid_id, BidStates.SWAP_COMPLETED, wait_for=80
         )
 
         js_0 = read_json_api(1800)
@@ -580,7 +342,7 @@ class Test(unittest.TestCase):
         wait_for_in_progress(delay_event, swap_clients[1], bid_id, sent=True)
 
         wait_for_bid(
-            delay_event, swap_clients[0], bid_id, BidStates.SWAP_COMPLETED, wait_for=60
+            delay_event, swap_clients[0], bid_id, BidStates.SWAP_COMPLETED, wait_for=80
         )
         wait_for_bid(
             delay_event,
@@ -717,7 +479,7 @@ class Test(unittest.TestCase):
         logging.info("---------- Test {} wallet".format(self.test_coin_from.name))
 
         logging.info("Test withdrawal")
-        addr = pivxRpc('getnewaddress "Withdrawal test"')
+        addr = pivxCli('getnewaddress "Withdrawal test"')
         wallets = read_json_api(TEST_HTTP_PORT + 0, "wallets")
         assert float(wallets[self.test_coin_from.name]["balance"]) > 100
 
@@ -747,30 +509,30 @@ class Test(unittest.TestCase):
     def test_09_v3_tx(self):
         logging.info("---------- Test PIVX v3 txns")
 
-        generate_addr = pivxRpc('getnewaddress "generate test"')
-        pivx_addr = pivxRpc('getnewaddress "Sapling test"')
-        pivx_sapling_addr = pivxRpc('getnewshieldaddress "shield addr"')
+        generate_addr = pivxCli('getnewaddress "generate test"')
+        pivx_addr = pivxCli('getnewaddress "Sapling test"')
+        pivx_sapling_addr = pivxCli('getnewshieldaddress "shield addr"')
 
-        pivxRpc(f'sendtoaddress "{pivx_addr}" 6.0')
-        pivxRpc(f'generatetoaddress 1 "{generate_addr}"')
+        pivxCli(f'sendtoaddress "{pivx_addr}" 6.0')
+        pivxCli(f'generatetoaddress 1 "{generate_addr}"')
 
-        txid = pivxRpc(
+        txid = pivxCli(
             'shieldsendmany "{}" "[{{\\"address\\": \\"{}\\", \\"amount\\": 1}}]"'.format(
                 pivx_addr, pivx_sapling_addr
             )
         )
-        rtx = pivxRpc(f'getrawtransaction "{txid}" true')
+        rtx = pivxCli(f'getrawtransaction "{txid}" true')
         assert rtx["version"] == 3
 
         block_hash = None
         for i in range(15):
-            rtx = pivxRpc(f'getrawtransaction "{txid}" true')
+            rtx = pivxCli(f'getrawtransaction "{txid}" true')
             if "blockhash" in rtx:
                 block_hash = rtx["blockhash"]
                 logging.info(f"Shielded tx confirmed in block {block_hash} after {i}s")
                 break
             if i == 5:
-                pivxRpc(f'generatetoaddress 1 "{generate_addr}"')
+                pivxCli(f'generatetoaddress 1 "{generate_addr}"')
             delay_event.wait(1)
         assert block_hash is not None, "Shielded tx was not confirmed"
 
@@ -860,7 +622,6 @@ class Test(unittest.TestCase):
         value_after_subfee = ci_from.make_int(itx_decoded["vout"][n]["value"])
         assert value_after_subfee < swap_value
         swap_value = value_after_subfee
-        wait_for_unspent(delay_event, ci_from, swap_value)
 
         extra_options = {"prefunded_itx": itx}
         rate_swap = ci_to.make_int(random.uniform(0.2, 10.0), r=1)

tests/basicswap/extended/test_scripts.py

@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2023-2024 tecnovert
-# Copyright (c) 2024-2025 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -36,6 +36,8 @@ from tests.basicswap.common import (
 from tests.basicswap.util import (
     read_json_api,
     waitForServer,
+    wait_for_offers,
+    UI_PORT,
 )
 
 logger = logging.getLogger()
@@ -44,10 +46,6 @@ if not len(logger.handlers):
     logger.addHandler(logging.StreamHandler(sys.stdout))
 
 
-PORT_OFS = int(os.getenv("PORT_OFS", 1))
-UI_PORT = 12700 + PORT_OFS
-
-
 class HttpHandler(BaseHTTPRequestHandler):
 
     def js_response(self, url_split, post_string, is_json):
@@ -131,18 +129,6 @@ def clear_offers(delay_event, node_id) -> None:
     raise ValueError("clear_offers failed")
 
 
-def wait_for_offers(delay_event, node_id, num_offers, offer_id=None) -> None:
-    logging.info(f"Waiting for {num_offers} offers on node {node_id}")
-    for i in range(20):
-        delay_event.wait(1)
-        offers = read_json_api(
-            UI_PORT + node_id, "offers" if offer_id is None else f"offers/{offer_id}"
-        )
-        if len(offers) >= num_offers:
-            return
-    raise ValueError("wait_for_offers failed")
-
-
 def wait_for_bids(delay_event, node_id, num_bids, offer_id=None) -> None:
     logging.info(f"Waiting for {num_bids} bids on node {node_id}")
     for i in range(20):

tests/basicswap/extended/test_wow.py

@@ -5,9 +5,9 @@
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-import time
 import logging
 import os
+import time
 
 from basicswap.basicswap import (
     Coins,
@@ -120,14 +120,14 @@ class Test(BaseTest):
     @classmethod
     def tearDownClass(cls):
         logging.info("Finalising Wownero Test")
-        super(Test, cls).tearDownClass()
+        super().tearDownClass()
 
         stopDaemons(cls.wow_daemons)
         cls.wow_daemons.clear()
 
     @classmethod
     def coins_loop(cls):
-        super(Test, cls).coins_loop()
+        super().coins_loop()
 
         if cls.wow_addr is not None:
             callrpc_xmr(
@@ -162,7 +162,7 @@ class Test(BaseTest):
             startXmrWalletDaemon(node_dir, WOW_BINDIR, WOW_WALLET_RPC, opts=opts)
         )
 
-        cls.wow_wallet_auth.append(("test{0}".format(i), "test_pass{0}".format(i)))
+        cls.wow_wallet_auth.append((f"test{i}", f"test_pass{i}"))
 
         waitForWOWNode(i, auth=cls.wow_wallet_auth[i])
 

tests/basicswap/extended/test_xmr_persistent.py

@@ -59,6 +59,8 @@ from tests.basicswap.util import (
     make_boolean,
     read_json_api,
     waitForServer,
+    PORT_OFS,
+    UI_PORT,
 )
 from tests.basicswap.common_xmr import (
     prepare_nodes,
@@ -73,9 +75,6 @@ import basicswap.bin.run as runSystem
 test_path = os.path.expanduser(os.getenv("TEST_PATH", "/tmp/test_persistent"))
 RESET_TEST = make_boolean(os.getenv("RESET_TEST", "true"))
 
-PORT_OFS = int(os.getenv("PORT_OFS", 1))
-UI_PORT = 12700 + PORT_OFS
-
 PARTICL_RPC_PORT_BASE = int(os.getenv("PARTICL_RPC_PORT_BASE", BASE_RPC_PORT))
 BITCOIN_RPC_PORT_BASE = int(os.getenv("BITCOIN_RPC_PORT_BASE", BTC_BASE_RPC_PORT))
 LITECOIN_RPC_PORT_BASE = int(os.getenv("LITECOIN_RPC_PORT_BASE", LTC_BASE_RPC_PORT))

tests/basicswap/mnemonics.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020 tecnovert

tests/basicswap/selenium/util.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2023 tecnovert

tests/basicswap/test_bch_xmr.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-# Copyright (c) 2024 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -167,6 +167,7 @@ class TestBCH(BasicSwapTest):
 
     @classmethod
     def prepareExtraCoins(cls):
+        super().prepareExtraCoins()
         cls.bch_addr = callnoderpc(
             0,
             "getnewaddress",
@@ -197,11 +198,12 @@ class TestBCH(BasicSwapTest):
             "datadir": os.path.join(datadir, "bch_" + str(node_id)),
             "bindir": BITCOINCASH_BINDIR,
             "use_segwit": False,
+            "wallet_name": "bsx_wallet",
         }
 
     @classmethod
     def coins_loop(cls):
-        super(TestBCH, cls).coins_loop()
+        super().coins_loop()
         ci0 = cls.swap_clients[0].ci(cls.test_coin)
         try:
             if cls.bch_addr is not None:
@@ -212,7 +214,7 @@ class TestBCH(BasicSwapTest):
     @classmethod
     def tearDownClass(cls):
         logging.info("Finalising Bitcoincash Test")
-        super(TestBCH, cls).tearDownClass()
+        super().tearDownClass()
 
         stopDaemons(cls.bch_daemons)
         cls.bch_daemons.clear()
@@ -224,19 +226,15 @@ class TestBCH(BasicSwapTest):
         return True
 
     def test_001_nested_segwit(self):
-        logging.info(
-            "---------- Test {} p2sh nested segwit".format(self.test_coin.name)
-        )
+        logging.info(f"---------- Test {self.test_coin.name} p2sh nested segwit")
         logging.info("Skipped")
 
     def test_002_native_segwit(self):
-        logging.info(
-            "---------- Test {} p2sh native segwit".format(self.test_coin.name)
-        )
+        logging.info(f"---------- Test {self.test_coin.name} p2sh native segwit")
         logging.info("Skipped")
 
     def test_003_cltv(self):
-        logging.info("---------- Test {} cltv".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} cltv")
 
         ci = self.swap_clients[0].ci(self.test_coin)
 
@@ -348,7 +346,7 @@ class TestBCH(BasicSwapTest):
         assert len(tx_wallet["blockhash"]) == 64
 
     def test_004_csv(self):
-        logging.info("---------- Test {} csv".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} csv")
 
         ci = self.swap_clients[0].ci(self.test_coin)
 
@@ -451,7 +449,7 @@ class TestBCH(BasicSwapTest):
         assert len(tx_wallet["blockhash"]) == 64
 
     def test_005_watchonly(self):
-        logging.info("---------- Test {} watchonly".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} watchonly")
         ci = self.swap_clients[0].ci(self.test_coin)
         ci1 = self.swap_clients[1].ci(self.test_coin)
 
@@ -482,7 +480,7 @@ class TestBCH(BasicSwapTest):
         super().test_006_getblock_verbosity()
 
     def test_007_hdwallet(self):
-        logging.info("---------- Test {} hdwallet".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} hdwallet")
 
         test_seed = "8e54a313e6df8918df6d758fafdbf127a115175fdd2238d0e908dd8093c9ac3b"
         test_wif = (
@@ -506,10 +504,10 @@ class TestBCH(BasicSwapTest):
         super().test_009_scantxoutset()
 
     def test_010_txn_size(self):
-        logging.info("---------- Test {} txn_size".format(Coins.BCH))
+        logging.info(f"---------- Test {self.test_coin.name} txn_size")
 
         swap_clients = self.swap_clients
-        ci = swap_clients[0].ci(Coins.BCH)
+        ci = swap_clients[0].ci(self.test_coin)
         pi = swap_clients[0].pi(SwapTypes.XMR_SWAP)
 
         amount: int = ci.make_int(random.uniform(0.1, 2.0), r=1)
@@ -627,7 +625,7 @@ class TestBCH(BasicSwapTest):
 
     def test_011_p2sh(self):
         # Not used in bsx for native-segwit coins
-        logging.info("---------- Test {} p2sh".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} p2sh")
 
         ci = self.swap_clients[0].ci(self.test_coin)
 
@@ -717,7 +715,7 @@ class TestBCH(BasicSwapTest):
 
     def test_011_p2sh32(self):
         # Not used in bsx for native-segwit coins
-        logging.info("---------- Test {} p2sh32".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} p2sh32")
 
         ci = self.swap_clients[0].ci(self.test_coin)
 
@@ -806,7 +804,7 @@ class TestBCH(BasicSwapTest):
         assert len(tx_wallet["blockhash"]) == 64
 
     def test_012_p2sh_p2wsh(self):
-        logging.info("---------- Test {} p2sh-p2wsh".format(self.test_coin.name))
+        logging.info(f"---------- Test {self.test_coin.name} p2sh-p2wsh")
         logging.info("Skipped")
 
     def test_01_a_full_swap(self):
@@ -877,7 +875,7 @@ class TestBCH(BasicSwapTest):
 
     def test_06_preselect_inputs(self):
         tla_from = self.test_coin.name
-        logging.info("---------- Test {} Preselected inputs".format(tla_from))
+        logging.info(f"---------- Test {tla_from} Preselected inputs")
         logging.info("Skipped")
 
     def test_07_expire_stuck_accepted(self):

tests/basicswap/test_btc_xmr.py

@@ -74,6 +74,7 @@ class TestFunctions(BaseTest):
 
     @classmethod
     def prepareExtraCoins(cls):
+        # Save sent messages so tests can count them
         for sc in cls.swap_clients:
             sc._smsg_add_to_outbox = True
 
@@ -113,7 +114,7 @@ class TestFunctions(BaseTest):
         )
 
     def do_test_01_full_swap(self, coin_from: Coins, coin_to: Coins) -> None:
-        logging.info("---------- Test {} to {}".format(coin_from.name, coin_to.name))
+        logging.info(f"---------- Test {coin_from.name} to {coin_to.name}")
 
         # Offerer sends the offer
         # Bidder sends the bid
@@ -306,9 +307,7 @@ class TestFunctions(BaseTest):
         self, coin_from: Coins, coin_to: Coins, lock_value: int = 32
     ) -> None:
         logging.info(
-            "---------- Test {} to {} leader recovers coin a lock tx".format(
-                coin_from.name, coin_to.name
-            )
+            f"---------- Test {coin_from.name} to {coin_to.name} leader recovers coin a lock tx"
         )
 
         id_offerer: int = self.node_a_id
@@ -459,6 +458,12 @@ class TestFunctions(BaseTest):
             if with_mercy
             else (BidStates.BID_STALLED_FOR_TEST, BidStates.XMR_SWAP_FAILED_SWIPED)
         )
+
+        chain_a_coin = coin_to if reverse_bid else coin_from
+        if with_mercy is False and chain_a_coin == Coins.BCH:
+            # When using BCH, can't set XMR_SWAP_FAILED_SWIPED as should wait for mercy tx
+            expect_state = expect_state + (BidStates.XMR_SWAP_SCRIPT_TX_PREREFUND,)
+
         wait_for_bid(
             test_delay_event,
             swap_clients[id_leader],
@@ -492,12 +497,12 @@ class TestFunctions(BaseTest):
             # Test manually redeeming the no-script lock tx
             offerer_key = read_json_api(
                 1800 + id_offerer,
-                "bids/{}".format(bid_id.hex()),
+                f"bids/{bid_id.hex()}",
                 {"chainbkeysplit": True},
             )["splitkey"]
             data = {"spendchainblocktx": True, "remote_key": offerer_key}
             redeemed_txid = read_json_api(
-                1800 + id_bidder, "bids/{}".format(bid_id.hex()), data
+                1800 + id_bidder, f"bids/{bid_id.hex()}", data
             )["txid"]
             assert len(redeemed_txid) == 64
 
@@ -505,9 +510,7 @@ class TestFunctions(BaseTest):
         self, coin_from, coin_to, lock_value: int = 32
     ):
         logging.info(
-            "---------- Test {} to {} follower recovers coin b lock tx".format(
-                coin_from.name, coin_to.name
-            )
+            f"---------- Test {coin_from.name} to {coin_to.name} follower recovers coin b lock tx"
         )
 
         id_offerer: int = self.node_a_id
@@ -920,7 +923,7 @@ class BasicSwapTest(TestFunctions):
 
     @classmethod
     def setUpClass(cls):
-        super(BasicSwapTest, cls).setUpClass()
+        super().setUpClass()
 
     @classmethod
     def addCoinSettings(cls, settings, datadir, node_id):
@@ -2480,11 +2483,6 @@ class BasicSwapTest(TestFunctions):
     def test_09_expire_accepted_rev(self):
         self.do_test_09_expire_accepted(Coins.XMR, self.test_coin_from)
 
-    def test_10_presigned_txns(self):
-        raise RuntimeError(
-            "TODO"
-        )  # Build without xmr first for quicker test iterations
-
     def test_11_fee_validation(self):
         coin_from, coin_to = (self.test_coin_from, Coins.XMR)
         logging.info(
@@ -2822,7 +2820,7 @@ class TestBTC_PARTB(TestFunctions):
 
     @classmethod
     def setUpClass(cls):
-        super(TestBTC_PARTB, cls).setUpClass()
+        super().setUpClass()
         if False:
             for client in cls.swap_clients:
                 client.log.safe_logs = True

tests/basicswap/test_electrum.py

@@ -115,6 +115,10 @@ def modify_config(test_path, i):
     with open(config_path, "w") as fp:
         json.dump(settings, fp, indent=4)
 
+    btc_config_path = os.path.join(test_path, f"client{i}", "bitcoin", "bitcoin.conf")
+    with open(btc_config_path, "a") as fp:
+        fp.write("minrelaytxfee=0.00001\n")
+
 
 def wait_for_bid_state(
     delay_event, node_port: int, bid_id: str, state=None, wait_for: int = 30
@@ -641,7 +645,7 @@ class Test(TestFunctions):
     @classmethod
     def setUpClass(cls):
         cls.addElectrumxDaemon("bitcoin", 32793, 50001)
-        super(Test, cls).setUpClass()
+        super().setUpClass()
 
     @classmethod
     def modifyConfig(cls, test_path, i):
@@ -754,14 +758,6 @@ class Test(TestFunctions):
             self.delay_event,
             self.test_coin_b,
             100,
-            self.port_node_1,
-            self.port_node_0,
-            True,
-        )
-        prepare_balance(
-            self.delay_event,
-            self.test_coin_xmr,
-            100,
             self.port_node_0,
             self.port_node_1,
             True,
@@ -788,7 +784,7 @@ class Test(TestFunctions):
             True,
         )
         self.do_test_03_follower_recover_a_lock_tx(
-            self.test_coin_b, self.test_coin_xmr, self.port_node_1, self.port_node_0
+            self.test_coin_b, self.test_coin_xmr, self.port_node_0, self.port_node_1
         )
 
     def test_03_b_follower_recover_a_lock_tx_reverse(self):

tests/basicswap/test_ltc_xmr.py

@@ -48,15 +48,11 @@ class TestLTC(BasicSwapTest):
         assert deploymentinfo["softforks"][feature_name]["active"] is True
 
     def test_001_nested_segwit(self):
-        logging.info(
-            "---------- Test {} p2sh nested segwit".format(self.test_coin_from.name)
-        )
+        logging.info(f"---------- Test {self.test_coin_from.name} p2sh nested segwit")
         logging.info("Skipped")
 
     def test_002_native_segwit(self):
-        logging.info(
-            "---------- Test {} p2sh native segwit".format(self.test_coin_from.name)
-        )
+        logging.info(f"---------- Test {self.test_coin_from.name} p2sh native segwit")
 
         ci = self.swap_clients[0].ci(self.test_coin_from)
         addr_segwit = ci.rpc_wallet("getnewaddress", ["segwit test", "bech32"])
@@ -120,7 +116,7 @@ class TestLTC(BasicSwapTest):
         assert tx_funded_decoded["txid"] == tx_signed_decoded["txid"]
 
     def test_007_hdwallet(self):
-        logging.info("---------- Test {} hdwallet".format(self.test_coin_from.name))
+        logging.info(f"---------- Test {self.test_coin_from.name} hdwallet")
 
         test_seed = "8e54a313e6df8918df6d758fafdbf127a115175fdd2238d0e908dd8093c9ac3b"
         test_wif = (
@@ -136,7 +132,7 @@ class TestLTC(BasicSwapTest):
         assert addr == "rltc1qps7hnjd866e9ynxadgseprkc2l56m00djr82la"
 
     def test_20_btc_coin(self):
-        logging.info("---------- Test BTC to {}".format(self.test_coin_from.name))
+        logging.info(f"---------- Test BTC to {self.test_coin_from.name}")
         swap_clients = self.swap_clients
 
         offer_id = swap_clients[0].postOffer(
@@ -178,7 +174,7 @@ class TestLTC(BasicSwapTest):
         assert js_1["num_swapping"] == 0 and js_1["num_watched_outputs"] == 0
 
     def test_21_mweb(self):
-        logging.info("---------- Test MWEB {}".format(self.test_coin_from.name))
+        logging.info(f"---------- Test MWEB {self.test_coin_from.name}")
         swap_clients = self.swap_clients
 
         ci0 = swap_clients[0].ci(self.test_coin_from)
@@ -327,7 +323,7 @@ class TestLTC(BasicSwapTest):
         # TODO
 
     def test_22_mweb_balance(self):
-        logging.info("---------- Test MWEB balance {}".format(self.test_coin_from.name))
+        logging.info(f"---------- Test MWEB balance {self.test_coin_from.name}")
         swap_clients = self.swap_clients
 
         ci_mweb = swap_clients[0].ci(Coins.LTC_MWEB)

tests/basicswap/test_xmr.py

@@ -815,7 +815,7 @@ class BaseTest(unittest.TestCase):
                         .pubkey_to_address(void_block_rewards_pubkey)
                     )
                     logging.info(
-                        "Mining %d Litecoin blocks to %s", num_blocks, cls.ltc_addr
+                        f"Mining {num_blocks} Litecoin blocks to {cls.ltc_addr}"
                     )
                     callnoderpc(
                         0,
@@ -942,6 +942,7 @@ class BaseTest(unittest.TestCase):
             )
             cls.coins_update_thread.start()
 
+            cls.prepareBalances()
         except Exception:
             traceback.print_exc()
             cls.tearDownClass()
@@ -999,6 +1000,10 @@ class BaseTest(unittest.TestCase):
     def prepareExtraCoins(cls):
         pass
 
+    @classmethod
+    def prepareBalances(cls):
+        pass
+
     @classmethod
     def coins_loop(cls):
         if cls.btc_addr is not None:

tests/basicswap/util.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2024 tecnovert
@@ -7,9 +6,14 @@
 # file LICENSE.txt or http://www.opensource.org/licenses/mit-license.php.
 
 import json
+import logging
+import os
 import urllib
 from urllib.request import urlopen
 
+PORT_OFS = int(os.getenv("PORT_OFS", 1))
+UI_PORT = 12700 + PORT_OFS
+
 REQUIRED_SETTINGS = {
     "blocks_confirmed": 1,
     "conf_target": 1,
@@ -67,5 +71,17 @@ def waitForServer(delay_event, port, wait_for=40):
             _ = read_json_api(port)
             return
         except Exception as e:
-            print("waitForServer, error:", str(e))
+            logging.error(f"waitForServer: {e}")
     raise ValueError("waitForServer failed")
+
+
+def wait_for_offers(delay_event, node_id, num_offers, offer_id=None) -> None:
+    logging.info(f"Waiting for {num_offers} offers on node {node_id}")
+    for i in range(20):
+        delay_event.wait(1)
+        offers = read_json_api(
+            UI_PORT + node_id, "offers" if offer_id is None else f"offers/{offer_id}"
+        )
+        if len(offers) >= num_offers:
+            return
+    raise ValueError("wait_for_offers failed")