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226 lines
9.1 KiB
Python
Executable File
226 lines
9.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2018 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test the avoid_reuse and setwalletflag features."""
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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assert_raises_rpc_error,
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)
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# TODO: Copied from wallet_groups.py -- should perhaps move into util.py
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def assert_approx(v, vexp, vspan=0.00001):
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if v < vexp - vspan:
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raise AssertionError("%s < [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
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if v > vexp + vspan:
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raise AssertionError("%s > [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
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def reset_balance(node, discardaddr):
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'''Throw away all owned coins by the node so it gets a balance of 0.'''
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balance = node.getbalance(avoid_reuse=False)
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if balance > 0.5:
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node.sendtoaddress(address=discardaddr, amount=balance, subtractfeefromamount=True, avoid_reuse=False)
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def count_unspent(node):
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'''Count the unspent outputs for the given node and return various statistics'''
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r = {
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"total": {
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"count": 0,
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"sum": 0,
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},
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"reused": {
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"count": 0,
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"sum": 0,
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},
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}
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supports_reused = True
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for utxo in node.listunspent(minconf=0):
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r["total"]["count"] += 1
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r["total"]["sum"] += utxo["amount"]
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if supports_reused and "reused" in utxo:
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if utxo["reused"]:
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r["reused"]["count"] += 1
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r["reused"]["sum"] += utxo["amount"]
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else:
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supports_reused = False
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r["reused"]["supported"] = supports_reused
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return r
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def assert_unspent(node, total_count=None, total_sum=None, reused_supported=None, reused_count=None, reused_sum=None):
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'''Make assertions about a node's unspent output statistics'''
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stats = count_unspent(node)
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if total_count is not None:
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assert_equal(stats["total"]["count"], total_count)
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if total_sum is not None:
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assert_approx(stats["total"]["sum"], total_sum, 0.001)
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if reused_supported is not None:
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assert_equal(stats["reused"]["supported"], reused_supported)
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if reused_count is not None:
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assert_equal(stats["reused"]["count"], reused_count)
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if reused_sum is not None:
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assert_approx(stats["reused"]["sum"], reused_sum, 0.001)
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class AvoidReuseTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = False
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self.num_nodes = 2
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# This test isn't testing txn relay/timing, so set whitelist on the
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# peers for instant txn relay. This speeds up the test run time 2-3x.
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self.extra_args = [["-whitelist=127.0.0.1"]] * self.num_nodes
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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'''Set up initial chain and run tests defined below'''
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self.test_persistence()
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self.test_immutable()
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self.nodes[0].generate(110)
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self.sync_all()
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reset_balance(self.nodes[1], self.nodes[0].getnewaddress())
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self.test_fund_send_fund_senddirty()
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reset_balance(self.nodes[1], self.nodes[0].getnewaddress())
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self.test_fund_send_fund_send()
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def test_persistence(self):
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'''Test that wallet files persist the avoid_reuse flag.'''
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self.log.info("Test wallet files persist avoid_reuse flag")
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# Configure node 1 to use avoid_reuse
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self.nodes[1].setwalletflag('avoid_reuse')
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# Flags should be node1.avoid_reuse=false, node2.avoid_reuse=true
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assert_equal(self.nodes[0].getwalletinfo()["avoid_reuse"], False)
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assert_equal(self.nodes[1].getwalletinfo()["avoid_reuse"], True)
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# Stop and restart node 1
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self.stop_node(1)
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self.start_node(1)
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self.connect_nodes(0, 1)
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# Flags should still be node1.avoid_reuse=false, node2.avoid_reuse=true
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assert_equal(self.nodes[0].getwalletinfo()["avoid_reuse"], False)
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assert_equal(self.nodes[1].getwalletinfo()["avoid_reuse"], True)
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# Attempting to set flag to its current state should throw
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assert_raises_rpc_error(-8, "Wallet flag is already set to false", self.nodes[0].setwalletflag, 'avoid_reuse', False)
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assert_raises_rpc_error(-8, "Wallet flag is already set to true", self.nodes[1].setwalletflag, 'avoid_reuse', True)
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def test_immutable(self):
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'''Test immutable wallet flags'''
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self.log.info("Test immutable wallet flags")
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# Attempt to set the disable_private_keys flag; this should not work
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assert_raises_rpc_error(-8, "Wallet flag is immutable", self.nodes[1].setwalletflag, 'disable_private_keys')
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tempwallet = ".wallet_avoidreuse.py_test_immutable_wallet.dat"
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# Create a wallet with disable_private_keys set; this should work
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self.nodes[1].createwallet(tempwallet, True)
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w = self.nodes[1].get_wallet_rpc(tempwallet)
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# Attempt to unset the disable_private_keys flag; this should not work
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assert_raises_rpc_error(-8, "Wallet flag is immutable", w.setwalletflag, 'disable_private_keys', False)
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# Unload temp wallet
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self.nodes[1].unloadwallet(tempwallet)
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def test_fund_send_fund_senddirty(self):
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'''
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Test the same as test_fund_send_fund_send, except send the 10 BTC with
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the avoid_reuse flag set to false. This means the 10 BTC send should succeed,
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where it fails in test_fund_send_fund_send.
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'''
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self.log.info("Test fund send fund send dirty")
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fundaddr = self.nodes[1].getnewaddress()
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retaddr = self.nodes[0].getnewaddress()
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self.nodes[0].sendtoaddress(fundaddr, 10)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 1 single, unused 10 btc output
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assert_unspent(self.nodes[1], total_count=1, total_sum=10, reused_supported=True, reused_count=0)
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self.nodes[1].sendtoaddress(retaddr, 5)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 1 single, unused 5 btc output
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assert_unspent(self.nodes[1], total_count=1, total_sum=5, reused_supported=True, reused_count=0)
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self.nodes[0].sendtoaddress(fundaddr, 10)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 2 total outputs (5, 10 btc), one unused (5), one reused (10)
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assert_unspent(self.nodes[1], total_count=2, total_sum=15, reused_count=1, reused_sum=10)
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self.nodes[1].sendtoaddress(address=retaddr, amount=10, avoid_reuse=False)
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# listunspent should show 1 total outputs (5 btc), unused
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assert_unspent(self.nodes[1], total_count=1, total_sum=5, reused_count=0)
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# node 1 should now have about 5 btc left (for both cases)
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assert_approx(self.nodes[1].getbalance(), 5, 0.001)
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assert_approx(self.nodes[1].getbalance(avoid_reuse=False), 5, 0.001)
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def test_fund_send_fund_send(self):
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'''
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Test the simple case where [1] generates a new address A, then
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[0] sends 10 BTC to A.
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[1] spends 5 BTC from A. (leaving roughly 5 BTC useable)
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[0] sends 10 BTC to A again.
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[1] tries to spend 10 BTC (fails; dirty).
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[1] tries to spend 4 BTC (succeeds; change address sufficient)
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'''
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self.log.info("Test fund send fund send")
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fundaddr = self.nodes[1].getnewaddress()
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retaddr = self.nodes[0].getnewaddress()
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self.nodes[0].sendtoaddress(fundaddr, 10)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 1 single, unused 10 btc output
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assert_unspent(self.nodes[1], total_count=1, total_sum=10, reused_supported=True, reused_count=0)
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self.nodes[1].sendtoaddress(retaddr, 5)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 1 single, unused 5 btc output
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assert_unspent(self.nodes[1], total_count=1, total_sum=5, reused_supported=True, reused_count=0)
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self.nodes[0].sendtoaddress(fundaddr, 10)
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self.nodes[0].generate(1)
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self.sync_all()
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# listunspent should show 2 total outputs (5, 10 btc), one unused (5), one reused (10)
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assert_unspent(self.nodes[1], total_count=2, total_sum=15, reused_count=1, reused_sum=10)
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# node 1 should now have a balance of 5 (no dirty) or 15 (including dirty)
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assert_approx(self.nodes[1].getbalance(), 5, 0.001)
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assert_approx(self.nodes[1].getbalance(avoid_reuse=False), 15, 0.001)
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assert_raises_rpc_error(-6, "Insufficient funds", self.nodes[1].sendtoaddress, retaddr, 10)
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self.nodes[1].sendtoaddress(retaddr, 4)
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# listunspent should show 2 total outputs (1, 10 btc), one unused (1), one reused (10)
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assert_unspent(self.nodes[1], total_count=2, total_sum=11, reused_count=1, reused_sum=10)
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# node 1 should now have about 1 btc left (no dirty) and 11 (including dirty)
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assert_approx(self.nodes[1].getbalance(), 1, 0.001)
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assert_approx(self.nodes[1].getbalance(avoid_reuse=False), 11, 0.001)
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if __name__ == '__main__':
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AvoidReuseTest().main()
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