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feature_burn_address.py
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#!/usr/bin/env python3
# Copyright (c) 2014-2019 The Bitcoin Core developers
# Copyright (c) DeFi Blockchain Developers
# Distributed under the MIT software license, see the accompanying
# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
"""Test burn address tracking"""
from test_framework.test_framework import DefiTestFramework
from test_framework.authproxy import JSONRPCException
from test_framework.util import assert_equal
from decimal import Decimal
class BurnAddressTest(DefiTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.setup_clean_chain = True
self.extra_args = [['-txnotokens=0', '-amkheight=1', '-eunosheight=1', '-dakotaheight=1']]
def run_test(self):
self.nodes[0].generate(101)
# Burn address
burn_address = "mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG"
self.nodes[0].importprivkey("93ViFmLeJVgKSPxWGQHmSdT5RbeGDtGW4bsiwQM2qnQyucChMqQ")
# Test masternode creation fee burn
collateral = self.nodes[0].getnewaddress("", "legacy")
self.nodes[0].createmasternode(collateral)
self.nodes[0].generate(1)
# Check create masternode burn fee
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'][4:14], "4466547843") # OP_RETURN data DfTxC
assert_equal(result[0]['txn'], 2)
assert_equal(result[0]['type'], 'CreateMasternode')
assert_equal(result[0]['amounts'][0], '1.00000000@DFI')
result = self.nodes[0].getburninfo()
assert_equal(result['address'], burn_address)
assert_equal(result['amount'], Decimal('0.00000000'))
assert_equal(len(result['tokens']), 0)
assert_equal(result['feeburn'], Decimal('1.00000000'))
# Create funded account address
funded_address = self.nodes[0].getnewaddress()
self.nodes[0].sendtoaddress(funded_address, 1)
self.nodes[0].utxostoaccount({funded_address:"3@0"})
self.nodes[0].generate(1)
# Test burn token
self.nodes[0].createtoken({
"symbol": "GOLD",
"name": "shiny gold",
"collateralAddress": funded_address
})
self.nodes[0].generate(1)
# Check token burn fee
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], "6a1f446654785404474f4c440a7368696e7920676f6c6408000000000000000003") # OP_RETURN data
assert_equal(result[0]['txn'], 1)
assert_equal(result[0]['type'], 'CreateToken')
assert_equal(result[0]['amounts'][0], '1.00000000@DFI')
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('0.00000000'))
assert_equal(len(result['tokens']), 0)
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Mint tokens
self.nodes[0].minttokens(["100@128"])
self.nodes[0].generate(1)
# Send tokens to burn address
self.nodes[0].accounttoaccount(funded_address, {burn_address:"100@128"})
self.nodes[0].generate(1)
# Check burn history
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], 'mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG')
assert_equal(result[0]['type'], 'AccountToAccount')
assert_equal(result[0]['amounts'][0], '100.00000000@GOLD#128')
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('0.00000000'))
assert_equal(result['tokens'][0], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Track utxostoaccount burn
self.nodes[0].utxostoaccount({burn_address:"1@0"})
self.nodes[0].generate(1)
# Check burn history
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], 'mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG')
assert_equal(result[0]['type'], 'UtxosToAccount')
assert_equal(result[0]['amounts'][0], '1.00000000@DFI')
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('0.00000000'))
assert_equal(result['tokens'][0], '1.00000000@DFI')
assert_equal(result['tokens'][1], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Try and spend from burn address account
try:
self.nodes[0].accounttoaccount(burn_address, {funded_address:"1@0"})
except JSONRPCException as e:
errorString = e.error['message']
assert("burnt-output" in errorString)
# Send to burn address with accounttoaccount
self.nodes[0].accounttoaccount(funded_address, {burn_address:"1@0"})
self.nodes[0].generate(1)
# Check burn history
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], 'mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG')
assert_equal(result[0]['type'], 'AccountToAccount')
assert_equal(result[0]['amounts'][0], '1.00000000@DFI')
# Auto auth burnt amount
auth_burn_amount = result[1]['amounts'][0][0:10]
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('0.00000000') + Decimal(auth_burn_amount))
assert_equal(result['tokens'][0], '2.00000000@DFI')
assert_equal(result['tokens'][1], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Send to burn address with accounttoutxos
self.nodes[0].accounttoutxos(funded_address, {burn_address:"2@0"})
self.nodes[0].generate(1)
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], 'mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG')
assert_equal(result[0]['type'], 'None')
assert_equal(result[0]['amounts'][0], '2.00000000@DFI')
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('2.00000000') + Decimal(auth_burn_amount))
assert_equal(result['tokens'][0], '2.00000000@DFI')
assert_equal(result['tokens'][1], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Send utxo to burn address
txid = self.nodes[0].sendtoaddress(burn_address, 10)
decodedtx = self.nodes[0].getrawtransaction(txid, 1)
self.nodes[0].generate(1)
# Check burn history
result = self.nodes[0].listburnhistory()
assert_equal(result[0]['owner'], 'mfburnZSAM7Gs1hpDeNaMotJXSGA7edosG')
assert_equal(result[0]['type'], 'None')
assert_equal(result[0]['amounts'][0], '10.00000000@DFI')
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('12.00000000') + Decimal(auth_burn_amount))
assert_equal(result['tokens'][0], '2.00000000@DFI')
assert_equal(result['tokens'][1], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Spend TX from burn address
for outputs in decodedtx['vout']:
if outputs['scriptPubKey']['addresses'][0] == burn_address:
vout = outputs['n']
rawtx = self.nodes[0].createrawtransaction([{"txid":txid,"vout":vout}], [{burn_address:9.9999}])
signed_rawtx = self.nodes[0].signrawtransactionwithwallet(rawtx)
assert_equal(signed_rawtx['complete'], True)
# Send should fail as transaction is invalid
try:
self.nodes[0].sendrawtransaction(signed_rawtx['hex'])
except JSONRPCException as e:
errorString = e.error['message']
assert("burnt-output" in errorString)
# Test output of getburninfo
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('12.00000000') + Decimal(auth_burn_amount))
assert_equal(result['tokens'][0], '2.00000000@DFI')
assert_equal(result['tokens'][1], '100.00000000@GOLD#128')
assert_equal(result['feeburn'], Decimal('2.00000000'))
# Filter on tx type None
result = self.nodes[0].listburnhistory({"txtype":'0'})
assert_equal(len(result), 3)
assert_equal(result[0]['type'], 'None')
assert_equal(result[1]['type'], 'None')
assert_equal(result[2]['type'], 'None')
# Filter on tx type UtxosToAccount
result = self.nodes[0].listburnhistory({"txtype":'U'})
assert_equal(len(result), 1)
assert_equal(result[0]['type'], 'UtxosToAccount')
# Filter on tx type AccountToAccount
result = self.nodes[0].listburnhistory({"txtype":'B'})
assert_equal(len(result), 2)
assert_equal(result[0]['type'], 'AccountToAccount')
assert_equal(result[1]['type'], 'AccountToAccount')
# Filter on tx type CreateMasternode
result = self.nodes[0].listburnhistory({"txtype":'C'})
assert_equal(len(result), 1)
assert_equal(result[0]['type'], 'CreateMasternode')
# Filter on tx type CreateToken
result = self.nodes[0].listburnhistory({"txtype":'T'})
assert_equal(len(result), 1)
assert_equal(result[0]['type'], 'CreateToken')
# Revert all TXs and check that burn history is empty
self.nodes[0].invalidateblock(self.nodes[0].getblockhash(101))
result = self.nodes[0].listburnhistory()
assert_equal(len(result), 0)
result = self.nodes[0].getburninfo()
assert_equal(result['amount'], Decimal('0.0'))
assert_equal(len(result['tokens']), 0)
if __name__ == '__main__':
BurnAddressTest().main()