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Merge #16293: test: Make test cases separate functions

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faf8318c55 test: Split fundrawtx test into subtests (MarcoFalke)
fa6fba3bc8 test: Make local symbols in run_test members (MarcoFalke)

Pull request description:

  This prevents scope-leak of symbols that are supposed to be local to one test case.

Top commit has no ACKs.

Tree-SHA512: 9b2a4ca2cdd631ef915d2f7e6cd62375df9a0919448350aa6e5ae4aa8a8fe3ba53870f7a9a25a57736894b4e3a45e861018253ed2d57d9a64c2bb65fa270fad8
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MarcoFalke 2019-07-31 18:03:43 -04:00
commit 5639d71a07
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1 changed files with 92 additions and 65 deletions
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157
test/functional/rpc_fundrawtransaction.py
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@ -41,11 +41,11 @@ class RawTransactionsTest(BitcoinTestFramework):
connect_nodes_bi(self.nodes, 0, 3)
def run_test(self):
min_relay_tx_fee = self.nodes[0].getnetworkinfo()['relayfee']
self.min_relay_tx_fee = self.nodes[0].getnetworkinfo()['relayfee']
# This test is not meant to test fee estimation and we'd like
# to be sure all txs are sent at a consistent desired feerate
for node in self.nodes:
node.settxfee(min_relay_tx_fee)
node.settxfee(self.min_relay_tx_fee)
# if the fee's positive delta is higher than this value tests will fail,
# neg. delta always fail the tests.
@ -53,13 +53,43 @@ class RawTransactionsTest(BitcoinTestFramework):
# than a minimum sized signature.
# = 2 bytes * minRelayTxFeePerByte
feeTolerance = 2 * min_relay_tx_fee/1000
self.fee_tolerance = 2 * self.min_relay_tx_fee / 1000
self.nodes[2].generate(1)
self.sync_all()
self.nodes[0].generate(121)
self.sync_all()
self.test_change_position()
self.test_simple()
self.test_simple_two_coins()
self.test_simple_two_outputs()
self.test_change()
self.test_no_change()
self.test_invalid_option()
self.test_invalid_change_address()
self.test_valid_change_address()
self.test_change_type()
self.test_coin_selection()
self.test_two_vin()
self.test_two_vin_two_vout()
self.test_invalid_input()
self.test_fee_p2pkh()
self.test_fee_p2pkh_multi_out()
self.test_fee_p2sh()
self.test_fee_4of5()
self.test_spend_2of2()
self.test_locked_wallet()
self.test_many_inputs_fee()
self.test_many_inputs_send()
self.test_op_return()
self.test_watchonly()
self.test_all_watched_funds()
self.test_option_feerate()
self.test_address_reuse()
self.test_option_subtract_fee_from_outputs()
def test_change_position(self):
# ensure that setting changePosition in fundraw with an exact match is handled properly
rawmatch = self.nodes[2].createrawtransaction([], {self.nodes[2].getnewaddress():50})
rawmatch = self.nodes[2].fundrawtransaction(rawmatch, {"changePosition":1, "subtractFeeFromOutputs":[0]})
@ -67,15 +97,15 @@ class RawTransactionsTest(BitcoinTestFramework):
watchonly_address = self.nodes[0].getnewaddress()
watchonly_pubkey = self.nodes[0].getaddressinfo(watchonly_address)["pubkey"]
watchonly_amount = Decimal(200)
self.watchonly_amount = Decimal(200)
self.nodes[3].importpubkey(watchonly_pubkey, "", True)
watchonly_txid = self.nodes[0].sendtoaddress(watchonly_address, watchonly_amount)
self.watchonly_txid = self.nodes[0].sendtoaddress(watchonly_address, self.watchonly_amount)
# Lock UTXO so nodes[0] doesn't accidentally spend it
watchonly_vout = find_vout_for_address(self.nodes[0], watchonly_txid, watchonly_address)
self.nodes[0].lockunspent(False, [{"txid": watchonly_txid, "vout": watchonly_vout}])
self.watchonly_vout = find_vout_for_address(self.nodes[0], self.watchonly_txid, watchonly_address)
self.nodes[0].lockunspent(False, [{"txid": self.watchonly_txid, "vout": self.watchonly_vout}])
self.nodes[0].sendtoaddress(self.nodes[3].getnewaddress(), watchonly_amount / 10)
self.nodes[0].sendtoaddress(self.nodes[3].getnewaddress(), self.watchonly_amount / 10)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.5)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.0)
@ -84,6 +114,7 @@ class RawTransactionsTest(BitcoinTestFramework):
self.nodes[0].generate(1)
self.sync_all()
def test_simple(self):
###############
# simple test #
###############
@ -92,10 +123,10 @@ class RawTransactionsTest(BitcoinTestFramework):
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert len(dec_tx['vin']) > 0 #test that we have enough inputs
def test_simple_two_coins(self):
##############################
# simple test with two coins #
##############################
@ -105,25 +136,11 @@ class RawTransactionsTest(BitcoinTestFramework):
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert len(dec_tx['vin']) > 0 #test if we have enough inputs
##############################
# simple test with two coins #
##############################
inputs = [ ]
outputs = { self.nodes[0].getnewaddress() : 2.6 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert len(dec_tx['vin']) > 0
assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
def test_simple_two_outputs(self):
################################
# simple test with two outputs #
################################
@ -133,7 +150,6 @@ class RawTransactionsTest(BitcoinTestFramework):
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
for out in dec_tx['vout']:
@ -142,7 +158,7 @@ class RawTransactionsTest(BitcoinTestFramework):
assert len(dec_tx['vin']) > 0
assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
def test_change(self):
#########################################################################
# test a fundrawtransaction with a VIN greater than the required amount #
#########################################################################
@ -156,6 +172,7 @@ class RawTransactionsTest(BitcoinTestFramework):
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
self.test_no_change_fee = fee # Use the same fee for the next tx
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
for out in dec_tx['vout']:
@ -163,14 +180,14 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
def test_no_change(self):
#####################################################################
# test a fundrawtransaction with which will not get a change output #
#####################################################################
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
outputs = { self.nodes[0].getnewaddress() : Decimal(5.0) - fee - feeTolerance }
outputs = {self.nodes[0].getnewaddress(): Decimal(5.0) - self.test_no_change_fee - self.fee_tolerance}
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
@ -185,7 +202,7 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(rawtxfund['changepos'], -1)
assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
def test_invalid_option(self):
####################################################
# test a fundrawtransaction with an invalid option #
####################################################
@ -202,6 +219,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# reserveChangeKey was deprecated and is now removed
assert_raises_rpc_error(-3, "Unexpected key reserveChangeKey", lambda: self.nodes[2].fundrawtransaction(hexstring=rawtx, options={'reserveChangeKey': True}))
def test_invalid_change_address(self):
############################################################
# test a fundrawtransaction with an invalid change address #
############################################################
@ -215,6 +233,7 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_raises_rpc_error(-5, "changeAddress must be a valid bitcoin address", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':'foobar'})
def test_valid_change_address(self):
############################################################
# test a fundrawtransaction with a provided change address #
############################################################
@ -233,6 +252,7 @@ class RawTransactionsTest(BitcoinTestFramework):
out = dec_tx['vout'][0]
assert_equal(change, out['scriptPubKey']['addresses'][0])
def test_change_type(self):
#########################################################
# test a fundrawtransaction with a provided change type #
#########################################################
@ -247,6 +267,7 @@ class RawTransactionsTest(BitcoinTestFramework):
dec_tx = self.nodes[2].decoderawtransaction(rawtx['hex'])
assert_equal('witness_v0_keyhash', dec_tx['vout'][rawtx['changepos']]['scriptPubKey']['type'])
def test_coin_selection(self):
#########################################################################
# test a fundrawtransaction with a VIN smaller than the required amount #
#########################################################################
@ -264,7 +285,6 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal("00", dec_tx['vin'][0]['scriptSig']['hex'])
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
@ -281,7 +301,7 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(matchingOuts, 1)
assert_equal(len(dec_tx['vout']), 2)
def test_two_vin(self):
###########################################
# test a fundrawtransaction with two VINs #
###########################################
@ -295,7 +315,6 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
@ -315,6 +334,7 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(matchingIns, 2) #we now must see two vins identical to vins given as params
def test_two_vin_two_vout(self):
#########################################################
# test a fundrawtransaction with two VINs and two vOUTs #
#########################################################
@ -328,7 +348,6 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
@ -340,16 +359,16 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(matchingOuts, 2)
assert_equal(len(dec_tx['vout']), 3)
def test_invalid_input(self):
##############################################
# test a fundrawtransaction with invalid vin #
##############################################
inputs = [ {'txid' : "1c7f966dab21119bac53213a2bc7532bff1fa844c124fd750a7d0b1332440bd1", 'vout' : 0} ] #invalid vin!
outputs = { self.nodes[0].getnewaddress() : 1.0}
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx)
def test_fee_p2pkh(self):
############################################################
#compare fee of a standard pubkeyhash transaction
inputs = []
@ -363,9 +382,10 @@ class RawTransactionsTest(BitcoinTestFramework):
#compare fee
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= feeTolerance
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
############################################################
def test_fee_p2pkh_multi_out(self):
############################################################
#compare fee of a standard pubkeyhash transaction with multiple outputs
inputs = []
@ -378,10 +398,10 @@ class RawTransactionsTest(BitcoinTestFramework):
#compare fee
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= feeTolerance
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
############################################################
def test_fee_p2sh(self):
############################################################
#compare fee of a 2of2 multisig p2sh transaction
@ -405,10 +425,10 @@ class RawTransactionsTest(BitcoinTestFramework):
#compare fee
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= feeTolerance
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
############################################################
def test_fee_4of5(self):
############################################################
#compare fee of a standard pubkeyhash transaction
@ -438,10 +458,10 @@ class RawTransactionsTest(BitcoinTestFramework):
#compare fee
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= feeTolerance
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
############################################################
def test_spend_2of2(self):
############################################################
# spend a 2of2 multisig transaction over fundraw
@ -456,7 +476,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# send 1.2 BTC to msig addr
txId = self.nodes[0].sendtoaddress(mSigObj, 1.2)
self.nodes[0].sendtoaddress(mSigObj, 1.2)
self.sync_all()
self.nodes[1].generate(1)
self.sync_all()
@ -468,7 +488,7 @@ class RawTransactionsTest(BitcoinTestFramework):
fundedTx = self.nodes[2].fundrawtransaction(rawtx)
signedTx = self.nodes[2].signrawtransactionwithwallet(fundedTx['hex'])
txId = self.nodes[2].sendrawtransaction(signedTx['hex'])
self.nodes[2].sendrawtransaction(signedTx['hex'])
self.sync_all()
self.nodes[1].generate(1)
self.sync_all()
@ -476,6 +496,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# make sure funds are received at node1
assert_equal(oldBalance+Decimal('1.10000000'), self.nodes[1].getbalance())
def test_locked_wallet(self):
############################################################
# locked wallet test
self.nodes[1].encryptwallet("test")
@ -485,7 +506,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# This test is not meant to test fee estimation and we'd like
# to be sure all txs are sent at a consistent desired feerate
for node in self.nodes:
node.settxfee(min_relay_tx_fee)
node.settxfee(self.min_relay_tx_fee)
connect_nodes_bi(self.nodes,0,1)
connect_nodes_bi(self.nodes,1,2)
@ -493,7 +514,7 @@ class RawTransactionsTest(BitcoinTestFramework):
connect_nodes_bi(self.nodes,0,3)
# Again lock the watchonly UTXO or nodes[0] may spend it, because
# lockunspent is memory-only and thus lost on restart
self.nodes[0].lockunspent(False, [{"txid": watchonly_txid, "vout": watchonly_vout}])
self.nodes[0].lockunspent(False, [{"txid": self.watchonly_txid, "vout": self.watchonly_vout}])
self.sync_all()
# drain the keypool
@ -523,14 +544,14 @@ class RawTransactionsTest(BitcoinTestFramework):
#now we need to unlock
self.nodes[1].walletpassphrase("test", 600)
signedTx = self.nodes[1].signrawtransactionwithwallet(fundedTx['hex'])
txId = self.nodes[1].sendrawtransaction(signedTx['hex'])
self.nodes[1].sendrawtransaction(signedTx['hex'])
self.nodes[1].generate(1)
self.sync_all()
# make sure funds are received at node1
assert_equal(oldBalance+Decimal('51.10000000'), self.nodes[0].getbalance())
def test_many_inputs_fee(self):
###############################################
# multiple (~19) inputs tx test | Compare fee #
###############################################
@ -558,9 +579,9 @@ class RawTransactionsTest(BitcoinTestFramework):
#compare fee
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= feeTolerance*19 #~19 inputs
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance * 19 #~19 inputs
def test_many_inputs_send(self):
#############################################
# multiple (~19) inputs tx test | sign/send #
#############################################
@ -584,12 +605,13 @@ class RawTransactionsTest(BitcoinTestFramework):
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[1].fundrawtransaction(rawtx)
fundedAndSignedTx = self.nodes[1].signrawtransactionwithwallet(fundedTx['hex'])
txId = self.nodes[1].sendrawtransaction(fundedAndSignedTx['hex'])
self.nodes[1].sendrawtransaction(fundedAndSignedTx['hex'])
self.sync_all()
self.nodes[0].generate(1)
self.sync_all()
assert_equal(oldBalance+Decimal('50.19000000'), self.nodes[0].getbalance()) #0.19+block reward
def test_op_return(self):
#####################################################
# test fundrawtransaction with OP_RETURN and no vin #
#####################################################
@ -606,40 +628,41 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_greater_than(len(dec_tx['vin']), 0) # at least one vin
assert_equal(len(dec_tx['vout']), 2) # one change output added
def test_watchonly(self):
##################################################
# test a fundrawtransaction using only watchonly #
##################################################
inputs = []
outputs = {self.nodes[2].getnewaddress() : watchonly_amount / 2}
outputs = {self.nodes[2].getnewaddress(): self.watchonly_amount / 2}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx, {'includeWatching': True })
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 1)
assert_equal(res_dec["vin"][0]["txid"], watchonly_txid)
assert_equal(res_dec["vin"][0]["txid"], self.watchonly_txid)
assert "fee" in result.keys()
assert_greater_than(result["changepos"], -1)
def test_all_watched_funds(self):
###############################################################
# test fundrawtransaction using the entirety of watched funds #
###############################################################
inputs = []
outputs = {self.nodes[2].getnewaddress() : watchonly_amount}
outputs = {self.nodes[2].getnewaddress(): self.watchonly_amount}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
# Backward compatibility test (2nd param is includeWatching)
result = self.nodes[3].fundrawtransaction(rawtx, True)
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 2)
assert res_dec["vin"][0]["txid"] == watchonly_txid or res_dec["vin"][1]["txid"] == watchonly_txid
assert res_dec["vin"][0]["txid"] == self.watchonly_txid or res_dec["vin"][1]["txid"] == self.watchonly_txid
assert_greater_than(result["fee"], 0)
assert_greater_than(result["changepos"], -1)
assert_equal(result["fee"] + res_dec["vout"][result["changepos"]]["value"], watchonly_amount / 10)
assert_equal(result["fee"] + res_dec["vout"][result["changepos"]]["value"], self.watchonly_amount / 10)
signedtx = self.nodes[3].signrawtransactionwithwallet(result["hex"])
assert not signedtx["complete"]
@ -649,6 +672,7 @@ class RawTransactionsTest(BitcoinTestFramework):
self.nodes[0].generate(1)
self.sync_all()
def test_option_feerate(self):
#######################
# Test feeRate option #
#######################
@ -659,18 +683,20 @@ class RawTransactionsTest(BitcoinTestFramework):
inputs = []
outputs = {self.nodes[3].getnewaddress() : 1}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx) # uses min_relay_tx_fee (set by settxfee)
result2 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee})
result3 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 10*min_relay_tx_fee})
result = self.nodes[3].fundrawtransaction(rawtx) # uses self.min_relay_tx_fee (set by settxfee)
result2 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee})
result3 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 10 * self.min_relay_tx_fee})
assert_raises_rpc_error(-4, "Fee exceeds maximum configured by -maxtxfee", self.nodes[3].fundrawtransaction, rawtx, {"feeRate": 1})
result_fee_rate = result['fee'] * 1000 / count_bytes(result['hex'])
assert_fee_amount(result2['fee'], count_bytes(result2['hex']), 2 * result_fee_rate)
assert_fee_amount(result3['fee'], count_bytes(result3['hex']), 10 * result_fee_rate)
def test_address_reuse(self):
################################
# Test no address reuse occurs #
################################
rawtx = self.nodes[3].createrawtransaction(inputs=[], outputs={self.nodes[3].getnewaddress(): 1})
result3 = self.nodes[3].fundrawtransaction(rawtx)
res_dec = self.nodes[0].decoderawtransaction(result3["hex"])
changeaddress = ""
@ -682,6 +708,7 @@ class RawTransactionsTest(BitcoinTestFramework):
# Now the change address key should be removed from the keypool
assert changeaddress != nextaddr
def test_option_subtract_fee_from_outputs(self):
######################################
# Test subtractFeeFromOutputs option #
######################################
@ -693,11 +720,11 @@ class RawTransactionsTest(BitcoinTestFramework):
outputs = {self.nodes[2].getnewaddress(): 1}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = [self.nodes[3].fundrawtransaction(rawtx), # uses min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": []}), # empty subtraction list
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0]}), # uses min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee}),
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee, "subtractFeeFromOutputs": [0]})]
result = [self.nodes[3].fundrawtransaction(rawtx), # uses self.min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": []}), # empty subtraction list
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0]}), # uses self.min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee}),
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee, "subtractFeeFromOutputs": [0]}),]
dec_tx = [self.nodes[3].decoderawtransaction(tx_['hex']) for tx_ in result]
output = [d['vout'][1 - r['changepos']]['value'] for d, r in zip(dec_tx, result)]