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path: root/qa/rpc-tests/wallet.py
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#!/usr/bin/env python2
# Copyright (c) 2014-2015 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.

from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *

class WalletTest (BitcoinTestFramework):

    def check_fee_amount(self, curr_balance, balance_with_fee, fee_per_byte, tx_size):
        """Return curr_balance after asserting the fee was in range"""
        fee = balance_with_fee - curr_balance
        target_fee = fee_per_byte * tx_size
        if fee < target_fee:
            raise AssertionError("Fee of %s BTC too low! (Should be %s BTC)"%(str(fee), str(target_fee)))
        # allow the node's estimation to be at most 2 bytes off
        if fee > fee_per_byte * (tx_size + 2):
            raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)"%(str(fee), str(target_fee)))
        return curr_balance

    def setup_chain(self):
        print("Initializing test directory "+self.options.tmpdir)
        initialize_chain_clean(self.options.tmpdir, 4)

    def setup_network(self, split=False):
        self.nodes = start_nodes(3, self.options.tmpdir)
        connect_nodes_bi(self.nodes,0,1)
        connect_nodes_bi(self.nodes,1,2)
        connect_nodes_bi(self.nodes,0,2)
        self.is_network_split=False
        self.sync_all()

    def run_test (self):
        print "Mining blocks..."

        self.nodes[0].generate(1)

        walletinfo = self.nodes[0].getwalletinfo()
        assert_equal(walletinfo['immature_balance'], 50)
        assert_equal(walletinfo['balance'], 0)

        self.sync_all()
        self.nodes[1].generate(101)
        self.sync_all()

        assert_equal(self.nodes[0].getbalance(), 50)
        assert_equal(self.nodes[1].getbalance(), 50)
        assert_equal(self.nodes[2].getbalance(), 0)

        # Send 21 BTC from 0 to 2 using sendtoaddress call.
        self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11)
        self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 10)

        walletinfo = self.nodes[0].getwalletinfo()
        assert_equal(walletinfo['immature_balance'], 0)

        # Have node0 mine a block, thus it will collect its own fee.
        self.nodes[0].generate(1)
        self.sync_all()

        # Have node1 generate 100 blocks (so node0 can recover the fee)
        self.nodes[1].generate(100)
        self.sync_all()

        # node0 should end up with 100 btc in block rewards plus fees, but
        # minus the 21 plus fees sent to node2
        assert_equal(self.nodes[0].getbalance(), 100-21)
        assert_equal(self.nodes[2].getbalance(), 21)

        # Node0 should have two unspent outputs.
        # Create a couple of transactions to send them to node2, submit them through
        # node1, and make sure both node0 and node2 pick them up properly:
        node0utxos = self.nodes[0].listunspent(1)
        assert_equal(len(node0utxos), 2)

        # create both transactions
        txns_to_send = []
        for utxo in node0utxos:
            inputs = []
            outputs = {}
            inputs.append({ "txid" : utxo["txid"], "vout" : utxo["vout"]})
            outputs[self.nodes[2].getnewaddress("from1")] = utxo["amount"] - 3
            raw_tx = self.nodes[0].createrawtransaction(inputs, outputs)
            txns_to_send.append(self.nodes[0].signrawtransaction(raw_tx))

        # Have node 1 (miner) send the transactions
        self.nodes[1].sendrawtransaction(txns_to_send[0]["hex"], True)
        self.nodes[1].sendrawtransaction(txns_to_send[1]["hex"], True)

        # Have node1 mine a block to confirm transactions:
        self.nodes[1].generate(1)
        self.sync_all()

        assert_equal(self.nodes[0].getbalance(), 0)
        assert_equal(self.nodes[2].getbalance(), 94)
        assert_equal(self.nodes[2].getbalance("from1"), 94-21)

        # Send 10 BTC normal
        address = self.nodes[0].getnewaddress("test")
        fee_per_byte = Decimal('0.001') / 1000
        self.nodes[2].settxfee(fee_per_byte * 1000)
        txid = self.nodes[2].sendtoaddress(address, 10, "", "", False)
        self.nodes[2].generate(1)
        self.sync_all()
        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), Decimal('84'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
        assert_equal(self.nodes[0].getbalance(), Decimal('10'))

        # Send 10 BTC with subtract fee from amount
        txid = self.nodes[2].sendtoaddress(address, 10, "", "", True)
        self.nodes[2].generate(1)
        self.sync_all()
        node_2_bal -= Decimal('10')
        assert_equal(self.nodes[2].getbalance(), node_2_bal)
        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), Decimal('20'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))

        # Sendmany 10 BTC
        txid = self.nodes[2].sendmany('from1', {address: 10}, 0, "", [])
        self.nodes[2].generate(1)
        self.sync_all()
        node_0_bal += Decimal('10')
        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), node_2_bal - Decimal('10'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
        assert_equal(self.nodes[0].getbalance(), node_0_bal)

        # Sendmany 10 BTC with subtract fee from amount
        txid = self.nodes[2].sendmany('from1', {address: 10}, 0, "", [address])
        self.nodes[2].generate(1)
        self.sync_all()
        node_2_bal -= Decimal('10')
        assert_equal(self.nodes[2].getbalance(), node_2_bal)
        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), node_0_bal + Decimal('10'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))

        # Test ResendWalletTransactions:
        # Create a couple of transactions, then start up a fourth
        # node (nodes[3]) and ask nodes[0] to rebroadcast.
        # EXPECT: nodes[3] should have those transactions in its mempool.
        txid1 = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 1)
        txid2 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1)
        sync_mempools(self.nodes)

        self.nodes.append(start_node(3, self.options.tmpdir))
        connect_nodes_bi(self.nodes, 0, 3)
        sync_blocks(self.nodes)

        relayed = self.nodes[0].resendwallettransactions()
        assert_equal(set(relayed), {txid1, txid2})
        sync_mempools(self.nodes)

        assert(txid1 in self.nodes[3].getrawmempool())

        #check if we can list zero value tx as available coins
        #1. create rawtx
        #2. hex-changed one output to 0.0
        #3. sign and send
        #4. check if recipient (node0) can list the zero value tx
        usp = self.nodes[1].listunspent()
        inputs = [{"txid":usp[0]['txid'], "vout":usp[0]['vout']}]
        outputs = {self.nodes[1].getnewaddress(): 49.998, self.nodes[0].getnewaddress(): 11.11}

        rawTx = self.nodes[1].createrawtransaction(inputs, outputs).replace("c0833842", "00000000") #replace 11.11 with 0.0 (int32)
        decRawTx = self.nodes[1].decoderawtransaction(rawTx)
        signedRawTx = self.nodes[1].signrawtransaction(rawTx)
        decRawTx = self.nodes[1].decoderawtransaction(signedRawTx['hex'])
        zeroValueTxid= decRawTx['txid']
        sendResp = self.nodes[1].sendrawtransaction(signedRawTx['hex'])

        self.sync_all()
        self.nodes[1].generate(1) #mine a block
        self.sync_all()

        unspentTxs = self.nodes[0].listunspent() #zero value tx must be in listunspents output
        found = False
        for uTx in unspentTxs:
            if uTx['txid'] == zeroValueTxid:
                found = True
                assert_equal(uTx['amount'], Decimal('0'))
        assert(found)

        #do some -walletbroadcast tests
        stop_nodes(self.nodes)
        wait_bitcoinds()
        self.nodes = start_nodes(3, self.options.tmpdir, [["-walletbroadcast=0"],["-walletbroadcast=0"],["-walletbroadcast=0"]])
        connect_nodes_bi(self.nodes,0,1)
        connect_nodes_bi(self.nodes,1,2)
        connect_nodes_bi(self.nodes,0,2)
        self.sync_all()

        txIdNotBroadcasted  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 2)
        txObjNotBroadcasted = self.nodes[0].gettransaction(txIdNotBroadcasted)
        self.nodes[1].generate(1) #mine a block, tx should not be in there
        self.sync_all()
        assert_equal(self.nodes[2].getbalance(), node_2_bal) #should not be changed because tx was not broadcasted

        #now broadcast from another node, mine a block, sync, and check the balance
        self.nodes[1].sendrawtransaction(txObjNotBroadcasted['hex'])
        self.nodes[1].generate(1)
        self.sync_all()
        node_2_bal += 2
        txObjNotBroadcasted = self.nodes[0].gettransaction(txIdNotBroadcasted)
        assert_equal(self.nodes[2].getbalance(), node_2_bal)

        #create another tx
        txIdNotBroadcasted  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 2)

        #restart the nodes with -walletbroadcast=1
        stop_nodes(self.nodes)
        wait_bitcoinds()
        self.nodes = start_nodes(3, self.options.tmpdir)
        connect_nodes_bi(self.nodes,0,1)
        connect_nodes_bi(self.nodes,1,2)
        connect_nodes_bi(self.nodes,0,2)
        sync_blocks(self.nodes)

        self.nodes[0].generate(1)
        sync_blocks(self.nodes)
        node_2_bal += 2

        #tx should be added to balance because after restarting the nodes tx should be broadcastet
        assert_equal(self.nodes[2].getbalance(), node_2_bal)

        #send a tx with value in a string (PR#6380 +)
        txId  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), "2")
        txObj = self.nodes[0].gettransaction(txId)
        assert_equal(txObj['amount'], Decimal('-2'))

        txId  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), "0.0001")
        txObj = self.nodes[0].gettransaction(txId)
        assert_equal(txObj['amount'], Decimal('-0.0001'))

        #check if JSON parser can handle scientific notation in strings
        txId  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), "1e-4")
        txObj = self.nodes[0].gettransaction(txId)
        assert_equal(txObj['amount'], Decimal('-0.0001'))

        #this should fail
        errorString = ""
        try:
            txId  = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), "1f-4")
        except JSONRPCException,e:
            errorString = e.error['message']

        assert_equal("Invalid amount" in errorString, True)

        errorString = ""
        try:
            self.nodes[0].generate("2") #use a string to as block amount parameter must fail because it's not interpreted as amount
        except JSONRPCException,e:
            errorString = e.error['message']

        assert_equal("not an integer" in errorString, True)

        #check if wallet or blochchain maintenance changes the balance
        self.sync_all()
        self.nodes[0].generate(1)
        self.sync_all()
        balance_nodes = [self.nodes[i].getbalance() for i in range(3)]

        maintenance = [
            '-rescan',
            '-reindex',
            '-zapwallettxes=1',
            '-zapwallettxes=2',
            '-salvagewallet',
        ]
        for m in maintenance:
            print "check " + m
            stop_nodes(self.nodes)
            wait_bitcoinds()
            self.nodes = start_nodes(3, self.options.tmpdir, [[m]] * 3)
            assert_equal(balance_nodes, [self.nodes[i].getbalance() for i in range(3)])


if __name__ == '__main__':
    WalletTest ().main ()