test: add rescan_utxos in MiniWallet's initialization

this simplifies usage when MiniWallet is used with a pre-mined chain.

test/functional/feature_dbcrash.py

@@ -202,7 +202,6 @@ class ChainstateWriteCrashTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[3])
-        self.wallet.rescan_utxos()
         initial_height = self.nodes[3].getblockcount()
         self.generate(self.nodes[3], COINBASE_MATURITY, sync_fun=self.no_op)
 

test/functional/feature_fee_estimation.py

@@ -297,7 +297,6 @@ class EstimateFeeTest(BitcoinTestFramework):
         # Split two coinbases into many small utxos
         self.start_node(0)
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
         self.initial_split(self.nodes[0])
         self.log.info("Finished splitting")
 

test/functional/feature_rbf.py

@@ -42,10 +42,6 @@ class ReplaceByFeeTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        # the pre-mined test framework chain contains coinbase outputs to the
-        # MiniWallet's default address in blocks 76-100 (see method
-        # BitcoinTestFramework._initialize_chain())
-        self.wallet.rescan_utxos()
 
         self.log.info("Running test simple doublespend...")
         self.test_simple_doublespend()
@@ -398,7 +394,6 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         """
         normal_node = self.nodes[1]
         wallet = MiniWallet(normal_node)
-        wallet.rescan_utxos()
         # Clear mempools to avoid cross-node sync failure.
         for node in self.nodes:
             self.generate(node, 1)

test/functional/feature_txindex_compatibility.py

@@ -42,7 +42,6 @@ class TxindexCompatibilityTest(BitcoinTestFramework):
 
     def run_test(self):
         mini_wallet = MiniWallet(self.nodes[1])
-        mini_wallet.rescan_utxos()
         spend_utxo = mini_wallet.get_utxo()
         mini_wallet.send_self_transfer(from_node=self.nodes[1], utxo_to_spend=spend_utxo)
         self.generate(self.nodes[1], 1)

test/functional/interface_rest.py

@@ -96,7 +96,6 @@ class RESTTest (BitcoinTestFramework):
     def run_test(self):
         self.url = urllib.parse.urlparse(self.nodes[0].url)
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         self.log.info("Broadcast test transaction and sync nodes")
         txid, _ = self.wallet.send_to(from_node=self.nodes[0], scriptPubKey=getnewdestination()[1], amount=int(0.1 * COIN))

test/functional/interface_zmq.py

@@ -215,7 +215,6 @@ class ZMQTest (BitcoinTestFramework):
             assert_equal([txid.hex()], self.nodes[1].getblock(hash)["tx"])
 
 
-        self.wallet.rescan_utxos()
         self.log.info("Wait for tx from second node")
         payment_tx = self.wallet.send_self_transfer(from_node=self.nodes[1])
         payment_txid = payment_tx['txid']

test/functional/mempool_accept.py

@@ -69,7 +69,6 @@ class MempoolAcceptanceTest(BitcoinTestFramework):
     def run_test(self):
         node = self.nodes[0]
         self.wallet = MiniWallet(node)
-        self.wallet.rescan_utxos()
 
         self.log.info('Start with empty mempool, and 200 blocks')
         self.mempool_size = 0

test/functional/mempool_datacarrier.py

@@ -44,7 +44,6 @@ class DataCarrierTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         # By default, only 80 bytes are used for data (+1 for OP_RETURN, +2 for the pushdata opcodes).
         default_size_data = random_bytes(MAX_OP_RETURN_RELAY - 3)

test/functional/mempool_dust.py

@@ -72,7 +72,6 @@ class DustRelayFeeTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         # prepare output scripts of each standard type
         key = ECKey()

test/functional/mempool_package_onemore.py

@@ -31,7 +31,6 @@ class MempoolPackagesTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         # DEFAULT_ANCESTOR_LIMIT transactions off a confirmed tx should be fine
         chain = []

test/functional/mempool_persist.py

@@ -59,7 +59,6 @@ class MempoolPersistTest(BitcoinTestFramework):
 
     def run_test(self):
         self.mini_wallet = MiniWallet(self.nodes[2])
-        self.mini_wallet.rescan_utxos()
         if self.is_sqlite_compiled():
             self.nodes[2].createwallet(
                 wallet_name="watch",

test/functional/mempool_reorg.py

@@ -31,7 +31,6 @@ class MempoolCoinbaseTest(BitcoinTestFramework):
         self.log.info("Add 4 coinbase utxos to the miniwallet")
         # Block 76 contains the first spendable coinbase txs.
         first_block = 76
-        wallet.rescan_utxos()
 
         # Three scenarios for re-orging coinbase spends in the memory pool:
         # 1. Direct coinbase spend  :  spend_1

test/functional/mempool_spend_coinbase.py

@@ -28,7 +28,6 @@ class MempoolSpendCoinbaseTest(BitcoinTestFramework):
         chain_height = 198
         self.nodes[0].invalidateblock(self.nodes[0].getblockhash(chain_height + 1))
         assert_equal(chain_height, self.nodes[0].getblockcount())
-        wallet.rescan_utxos()
 
         # Coinbase at height chain_height-100+1 ok in mempool, should
         # get mined. Coinbase at height chain_height-100+2 is

test/functional/mempool_unbroadcast.py

@@ -23,7 +23,6 @@ class MempoolUnbroadcastTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
         self.test_broadcast()
         self.test_txn_removal()
 

test/functional/mining_prioritisetransaction.py

@@ -106,7 +106,6 @@ class PrioritiseTransactionTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         # Test `prioritisetransaction` required parameters
         assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction)

test/functional/p2p_blocksonly.py

@@ -20,8 +20,6 @@ class P2PBlocksOnly(BitcoinTestFramework):
 
     def run_test(self):
         self.miniwallet = MiniWallet(self.nodes[0])
-        # Add enough mature utxos to the wallet, so that all txs spend confirmed coins
-        self.miniwallet.rescan_utxos()
 
         self.blocksonly_mode_tests()
         self.blocks_relay_conn_tests()

test/functional/p2p_filter.py

@@ -214,7 +214,6 @@ class FilterTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         filter_peer = self.nodes[0].add_p2p_connection(P2PBloomFilter())
         self.log.info('Test filter size limits')

test/functional/p2p_permissions.py

@@ -26,7 +26,6 @@ class P2PPermissionsTests(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         self.check_tx_relay()
 

test/functional/p2p_tx_privacy.py

@@ -53,7 +53,6 @@ class TxPrivacyTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         tx_originator = self.nodes[0].add_p2p_connection(P2PInterface())
         spy = self.nodes[0].add_p2p_connection(P2PTxSpy(), wait_for_verack=False)

test/functional/rpc_generate.py

@@ -28,7 +28,6 @@ class RPCGenerateTest(BitcoinTestFramework):
     def test_generateblock(self):
         node = self.nodes[0]
         miniwallet = MiniWallet(node)
-        miniwallet.rescan_utxos()
 
         self.log.info('Generate an empty block to address')
         address = miniwallet.get_address()

test/functional/rpc_mempool_info.py

@@ -18,7 +18,6 @@ class RPCMempoolInfoTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
         confirmed_utxo = self.wallet.get_utxo()
 
         # Create a tree of unconfirmed transactions in the mempool:

test/functional/rpc_scanblocks.py

@@ -27,7 +27,6 @@ class ScanblocksTest(BitcoinTestFramework):
     def run_test(self):
         node = self.nodes[0]
         wallet = MiniWallet(node)
-        wallet.rescan_utxos()
 
         # send 1.0, mempool only
         _, spk_1, addr_1 = getnewdestination()

test/functional/rpc_scantxoutset.py

@@ -31,7 +31,6 @@ class ScantxoutsetTest(BitcoinTestFramework):
 
     def run_test(self):
         self.wallet = MiniWallet(self.nodes[0])
-        self.wallet.rescan_utxos()
 
         self.log.info("Test if we find coinbase outputs.")
         assert_equal(sum(u["coinbase"] for u in self.nodes[0].scantxoutset("start", [self.wallet.get_descriptor()])["unspents"]), 49)

test/functional/test_framework/wallet.py

@@ -101,6 +101,13 @@ class MiniWallet:
             self._address, self._internal_key = create_deterministic_address_bcrt1_p2tr_op_true()
             self._scriptPubKey = bytes.fromhex(self._test_node.validateaddress(self._address)['scriptPubKey'])
 
+        # When the pre-mined test framework chain is used, it contains coinbase
+        # outputs to the MiniWallet's default address in blocks 76-100
+        # (see method BitcoinTestFramework._initialize_chain())
+        # The MiniWallet needs to rescan_utxos() in order to account
+        # for those mature UTXOs, so that all txs spend confirmed coins
+        self.rescan_utxos()
+
     def _create_utxo(self, *, txid, vout, value, height, coinbase, confirmations):
         return {"txid": txid, "vout": vout, "value": value, "height": height, "coinbase": coinbase, "confirmations": confirmations}
 

test/functional/wallet_fast_rescan.py

@@ -40,7 +40,6 @@ class WalletFastRescanTest(BitcoinTestFramework):
     def run_test(self):
         node = self.nodes[0]
         wallet = MiniWallet(node)
-        wallet.rescan_utxos()
 
         self.log.info("Create descriptor wallet with backup")
         WALLET_BACKUP_FILENAME = os.path.join(node.datadir, 'wallet.bak')