test/functional/fundrawtransaction.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2014-2016 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5 """Test the fundrawtransaction RPC."""
   6
   7 from test_framework.test_framework import BitcoinTestFramework
   8 from test_framework.util import *
   9
  10
  11 def get_unspent(listunspent, amount):
  12     for utx in listunspent:
  13         if utx['amount'] == amount:
  14             return utx
  15     raise AssertionError('Could not find unspent with amount={}'.format(amount))
  16
  17 class RawTransactionsTest(BitcoinTestFramework):
  18     def set_test_params(self):
  19         self.num_nodes = 4
  20         self.setup_clean_chain = True
  21
  22     def setup_network(self, split=False):
  23         self.setup_nodes()
  24
  25         connect_nodes_bi(self.nodes, 0, 1)
  26         connect_nodes_bi(self.nodes, 1, 2)
  27         connect_nodes_bi(self.nodes, 0, 2)
  28         connect_nodes_bi(self.nodes, 0, 3)
  29
  30     def run_test(self):
  31         min_relay_tx_fee = self.nodes[0].getnetworkinfo()['relayfee']
  32         # This test is not meant to test fee estimation and we'd like
  33         # to be sure all txs are sent at a consistent desired feerate
  34         for node in self.nodes:
  35             node.settxfee(min_relay_tx_fee)
  36
  37         # if the fee's positive delta is higher than this value tests will fail,
  38         # neg. delta always fail the tests.
  39         # The size of the signature of every input may be at most 2 bytes larger
  40         # than a minimum sized signature.
  41
  42         #            = 2 bytes * minRelayTxFeePerByte
  43         feeTolerance = 2 * min_relay_tx_fee/1000
  44
  45         self.nodes[2].generate(1)
  46         self.sync_all()
  47         self.nodes[0].generate(121)
  48         self.sync_all()
  49
  50         # ensure that setting changePosition in fundraw with an exact match is handled properly
  51         rawmatch = self.nodes[2].createrawtransaction([], {self.nodes[2].getnewaddress():50})
  52         rawmatch = self.nodes[2].fundrawtransaction(rawmatch, {"changePosition":1, "subtractFeeFromOutputs":[0]})
  53         assert_equal(rawmatch["changepos"], -1)
  54
  55         watchonly_address = self.nodes[0].getnewaddress()
  56         watchonly_pubkey = self.nodes[0].validateaddress(watchonly_address)["pubkey"]
  57         watchonly_amount = Decimal(200)
  58         self.nodes[3].importpubkey(watchonly_pubkey, "", True)
  59         watchonly_txid = self.nodes[0].sendtoaddress(watchonly_address, watchonly_amount)
  60         self.nodes[0].sendtoaddress(self.nodes[3].getnewaddress(), watchonly_amount / 10)
  61
  62         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.5)
  63         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.0)
  64         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 5.0)
  65
  66         self.nodes[0].generate(1)
  67         self.sync_all()
  68
  69         ###############
  70         # simple test #
  71         ###############
  72         inputs  = [ ]
  73         outputs = { self.nodes[0].getnewaddress() : 1.0 }
  74         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
  75         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
  76         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
  77         fee = rawtxfund['fee']
  78         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
  79         assert(len(dec_tx['vin']) > 0) #test that we have enough inputs
  80
  81         ##############################
  82         # simple test with two coins #
  83         ##############################
  84         inputs  = [ ]
  85         outputs = { self.nodes[0].getnewaddress() : 2.2 }
  86         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
  87         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
  88
  89         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
  90         fee = rawtxfund['fee']
  91         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
  92         assert(len(dec_tx['vin']) > 0) #test if we have enough inputs
  93
  94         ##############################
  95         # simple test with two coins #
  96         ##############################
  97         inputs  = [ ]
  98         outputs = { self.nodes[0].getnewaddress() : 2.6 }
  99         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 100         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 101
 102         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 103         fee = rawtxfund['fee']
 104         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 105         assert(len(dec_tx['vin']) > 0)
 106         assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
 107
 108
 109         ################################
 110         # simple test with two outputs #
 111         ################################
 112         inputs  = [ ]
 113         outputs = { self.nodes[0].getnewaddress() : 2.6, self.nodes[1].getnewaddress() : 2.5 }
 114         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 115         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 116
 117         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 118         fee = rawtxfund['fee']
 119         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 120         totalOut = 0
 121         for out in dec_tx['vout']:
 122             totalOut += out['value']
 123
 124         assert(len(dec_tx['vin']) > 0)
 125         assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
 126
 127
 128         #########################################################################
 129         # test a fundrawtransaction with a VIN greater than the required amount #
 130         #########################################################################
 131         utx = get_unspent(self.nodes[2].listunspent(), 5)
 132
 133         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
 134         outputs = { self.nodes[0].getnewaddress() : 1.0 }
 135         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 136         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 137         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 138
 139         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 140         fee = rawtxfund['fee']
 141         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 142         totalOut = 0
 143         for out in dec_tx['vout']:
 144             totalOut += out['value']
 145
 146         assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
 147
 148
 149         #####################################################################
 150         # test a fundrawtransaction with which will not get a change output #
 151         #####################################################################
 152         utx = get_unspent(self.nodes[2].listunspent(), 5)
 153
 154         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
 155         outputs = { self.nodes[0].getnewaddress() : Decimal(5.0) - fee - feeTolerance }
 156         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 157         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 158         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 159
 160         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 161         fee = rawtxfund['fee']
 162         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 163         totalOut = 0
 164         for out in dec_tx['vout']:
 165             totalOut += out['value']
 166
 167         assert_equal(rawtxfund['changepos'], -1)
 168         assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
 169
 170
 171         ####################################################
 172         # test a fundrawtransaction with an invalid option #
 173         ####################################################
 174         utx = get_unspent(self.nodes[2].listunspent(), 5)
 175
 176         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
 177         outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
 178         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 179         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 180         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 181
 182         assert_raises_jsonrpc(-3, "Unexpected key foo", self.nodes[2].fundrawtransaction, rawtx, {'foo':'bar'})
 183
 184         ############################################################
 185         # test a fundrawtransaction with an invalid change address #
 186         ############################################################
 187         utx = get_unspent(self.nodes[2].listunspent(), 5)
 188
 189         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
 190         outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
 191         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 192         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 193         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 194
 195         assert_raises_jsonrpc(-5, "changeAddress must be a valid bitcoin address", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':'foobar'})
 196
 197         ############################################################
 198         # test a fundrawtransaction with a provided change address #
 199         ############################################################
 200         utx = get_unspent(self.nodes[2].listunspent(), 5)
 201
 202         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
 203         outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
 204         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 205         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 206         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 207
 208         change = self.nodes[2].getnewaddress()
 209         assert_raises_jsonrpc(-8, "changePosition out of bounds", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':change, 'changePosition':2})
 210         rawtxfund = self.nodes[2].fundrawtransaction(rawtx, {'changeAddress': change, 'changePosition': 0})
 211         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 212         out = dec_tx['vout'][0]
 213         assert_equal(change, out['scriptPubKey']['addresses'][0])
 214
 215
 216         #########################################################################
 217         # test a fundrawtransaction with a VIN smaller than the required amount #
 218         #########################################################################
 219         utx = get_unspent(self.nodes[2].listunspent(), 1)
 220
 221         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
 222         outputs = { self.nodes[0].getnewaddress() : 1.0 }
 223         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 224
 225         # 4-byte version + 1-byte vin count + 36-byte prevout then script_len
 226         rawtx = rawtx[:82] + "0100" + rawtx[84:]
 227
 228         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 229         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 230         assert_equal("00", dec_tx['vin'][0]['scriptSig']['hex'])
 231
 232         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 233         fee = rawtxfund['fee']
 234         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 235         totalOut = 0
 236         matchingOuts = 0
 237         for i, out in enumerate(dec_tx['vout']):
 238             totalOut += out['value']
 239             if out['scriptPubKey']['addresses'][0] in outputs:
 240                 matchingOuts+=1
 241             else:
 242                 assert_equal(i, rawtxfund['changepos'])
 243
 244         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 245         assert_equal("00", dec_tx['vin'][0]['scriptSig']['hex'])
 246
 247         assert_equal(matchingOuts, 1)
 248         assert_equal(len(dec_tx['vout']), 2)
 249
 250
 251         ###########################################
 252         # test a fundrawtransaction with two VINs #
 253         ###########################################
 254         utx = get_unspent(self.nodes[2].listunspent(), 1)
 255         utx2 = get_unspent(self.nodes[2].listunspent(), 5)
 256
 257         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']},{'txid' : utx2['txid'], 'vout' : utx2['vout']} ]
 258         outputs = { self.nodes[0].getnewaddress() : 6.0 }
 259         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 260         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 261         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 262
 263         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 264         fee = rawtxfund['fee']
 265         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 266         totalOut = 0
 267         matchingOuts = 0
 268         for out in dec_tx['vout']:
 269             totalOut += out['value']
 270             if out['scriptPubKey']['addresses'][0] in outputs:
 271                 matchingOuts+=1
 272
 273         assert_equal(matchingOuts, 1)
 274         assert_equal(len(dec_tx['vout']), 2)
 275
 276         matchingIns = 0
 277         for vinOut in dec_tx['vin']:
 278             for vinIn in inputs:
 279                 if vinIn['txid'] == vinOut['txid']:
 280                     matchingIns+=1
 281
 282         assert_equal(matchingIns, 2) #we now must see two vins identical to vins given as params
 283
 284         #########################################################
 285         # test a fundrawtransaction with two VINs and two vOUTs #
 286         #########################################################
 287         utx = get_unspent(self.nodes[2].listunspent(), 1)
 288         utx2 = get_unspent(self.nodes[2].listunspent(), 5)
 289
 290         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']},{'txid' : utx2['txid'], 'vout' : utx2['vout']} ]
 291         outputs = { self.nodes[0].getnewaddress() : 6.0, self.nodes[0].getnewaddress() : 1.0 }
 292         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 293         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 294         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 295
 296         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 297         fee = rawtxfund['fee']
 298         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 299         totalOut = 0
 300         matchingOuts = 0
 301         for out in dec_tx['vout']:
 302             totalOut += out['value']
 303             if out['scriptPubKey']['addresses'][0] in outputs:
 304                 matchingOuts+=1
 305
 306         assert_equal(matchingOuts, 2)
 307         assert_equal(len(dec_tx['vout']), 3)
 308
 309         ##############################################
 310         # test a fundrawtransaction with invalid vin #
 311         ##############################################
 312         inputs  = [ {'txid' : "1c7f966dab21119bac53213a2bc7532bff1fa844c124fd750a7d0b1332440bd1", 'vout' : 0} ] #invalid vin!
 313         outputs = { self.nodes[0].getnewaddress() : 1.0}
 314         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
 315         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 316
 317         assert_raises_jsonrpc(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx)
 318
 319         ############################################################
 320         #compare fee of a standard pubkeyhash transaction
 321         inputs = []
 322         outputs = {self.nodes[1].getnewaddress():1.1}
 323         rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
 324         fundedTx = self.nodes[0].fundrawtransaction(rawtx)
 325
 326         #create same transaction over sendtoaddress
 327         txId = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 1.1)
 328         signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
 329
 330         #compare fee
 331         feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
 332         assert(feeDelta >= 0 and feeDelta <= feeTolerance)
 333         ############################################################
 334
 335         ############################################################
 336         #compare fee of a standard pubkeyhash transaction with multiple outputs
 337         inputs = []
 338         outputs = {self.nodes[1].getnewaddress():1.1,self.nodes[1].getnewaddress():1.2,self.nodes[1].getnewaddress():0.1,self.nodes[1].getnewaddress():1.3,self.nodes[1].getnewaddress():0.2,self.nodes[1].getnewaddress():0.3}
 339         rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
 340         fundedTx = self.nodes[0].fundrawtransaction(rawtx)
 341         #create same transaction over sendtoaddress
 342         txId = self.nodes[0].sendmany("", outputs)
 343         signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
 344
 345         #compare fee
 346         feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
 347         assert(feeDelta >= 0 and feeDelta <= feeTolerance)
 348         ############################################################
 349
 350
 351         ############################################################
 352         #compare fee of a 2of2 multisig p2sh transaction
 353
 354         # create 2of2 addr
 355         addr1 = self.nodes[1].getnewaddress()
 356         addr2 = self.nodes[1].getnewaddress()
 357
 358         addr1Obj = self.nodes[1].validateaddress(addr1)
 359         addr2Obj = self.nodes[1].validateaddress(addr2)
 360
 361         mSigObj = self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
 362
 363         inputs = []
 364         outputs = {mSigObj:1.1}
 365         rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
 366         fundedTx = self.nodes[0].fundrawtransaction(rawtx)
 367
 368         #create same transaction over sendtoaddress
 369         txId = self.nodes[0].sendtoaddress(mSigObj, 1.1)
 370         signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
 371
 372         #compare fee
 373         feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
 374         assert(feeDelta >= 0 and feeDelta <= feeTolerance)
 375         ############################################################
 376
 377
 378         ############################################################
 379         #compare fee of a standard pubkeyhash transaction
 380
 381         # create 4of5 addr
 382         addr1 = self.nodes[1].getnewaddress()
 383         addr2 = self.nodes[1].getnewaddress()
 384         addr3 = self.nodes[1].getnewaddress()
 385         addr4 = self.nodes[1].getnewaddress()
 386         addr5 = self.nodes[1].getnewaddress()
 387
 388         addr1Obj = self.nodes[1].validateaddress(addr1)
 389         addr2Obj = self.nodes[1].validateaddress(addr2)
 390         addr3Obj = self.nodes[1].validateaddress(addr3)
 391         addr4Obj = self.nodes[1].validateaddress(addr4)
 392         addr5Obj = self.nodes[1].validateaddress(addr5)
 393
 394         mSigObj = self.nodes[1].addmultisigaddress(4, [addr1Obj['pubkey'], addr2Obj['pubkey'], addr3Obj['pubkey'], addr4Obj['pubkey'], addr5Obj['pubkey']])
 395
 396         inputs = []
 397         outputs = {mSigObj:1.1}
 398         rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
 399         fundedTx = self.nodes[0].fundrawtransaction(rawtx)
 400
 401         #create same transaction over sendtoaddress
 402         txId = self.nodes[0].sendtoaddress(mSigObj, 1.1)
 403         signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
 404
 405         #compare fee
 406         feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
 407         assert(feeDelta >= 0 and feeDelta <= feeTolerance)
 408         ############################################################
 409
 410
 411         ############################################################
 412         # spend a 2of2 multisig transaction over fundraw
 413
 414         # create 2of2 addr
 415         addr1 = self.nodes[2].getnewaddress()
 416         addr2 = self.nodes[2].getnewaddress()
 417
 418         addr1Obj = self.nodes[2].validateaddress(addr1)
 419         addr2Obj = self.nodes[2].validateaddress(addr2)
 420
 421         mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
 422
 423
 424         # send 1.2 BTC to msig addr
 425         txId = self.nodes[0].sendtoaddress(mSigObj, 1.2)
 426         self.sync_all()
 427         self.nodes[1].generate(1)
 428         self.sync_all()
 429
 430         oldBalance = self.nodes[1].getbalance()
 431         inputs = []
 432         outputs = {self.nodes[1].getnewaddress():1.1}
 433         rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
 434         fundedTx = self.nodes[2].fundrawtransaction(rawtx)
 435
 436         signedTx = self.nodes[2].signrawtransaction(fundedTx['hex'])
 437         txId = self.nodes[2].sendrawtransaction(signedTx['hex'])
 438         self.sync_all()
 439         self.nodes[1].generate(1)
 440         self.sync_all()
 441
 442         # make sure funds are received at node1
 443         assert_equal(oldBalance+Decimal('1.10000000'), self.nodes[1].getbalance())
 444
 445         ############################################################
 446         # locked wallet test
 447         self.stop_node(0)
 448         self.nodes[1].node_encrypt_wallet("test")
 449         self.stop_node(2)
 450         self.stop_node(3)
 451
 452         self.start_nodes()
 453         # This test is not meant to test fee estimation and we'd like
 454         # to be sure all txs are sent at a consistent desired feerate
 455         for node in self.nodes:
 456             node.settxfee(min_relay_tx_fee)
 457
 458         connect_nodes_bi(self.nodes,0,1)
 459         connect_nodes_bi(self.nodes,1,2)
 460         connect_nodes_bi(self.nodes,0,2)
 461         connect_nodes_bi(self.nodes,0,3)
 462         self.sync_all()
 463
 464         # drain the keypool
 465         self.nodes[1].getnewaddress()
 466         self.nodes[1].getrawchangeaddress()
 467         inputs = []
 468         outputs = {self.nodes[0].getnewaddress():1.1}
 469         rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
 470         # fund a transaction that requires a new key for the change output
 471         # creating the key must be impossible because the wallet is locked
 472         assert_raises_jsonrpc(-4, "Keypool ran out, please call keypoolrefill first", self.nodes[1].fundrawtransaction, rawtx)
 473
 474         #refill the keypool
 475         self.nodes[1].walletpassphrase("test", 100)
 476         self.nodes[1].keypoolrefill(8) #need to refill the keypool to get an internal change address
 477         self.nodes[1].walletlock()
 478
 479         assert_raises_jsonrpc(-13, "walletpassphrase", self.nodes[1].sendtoaddress, self.nodes[0].getnewaddress(), 1.2)
 480
 481         oldBalance = self.nodes[0].getbalance()
 482
 483         inputs = []
 484         outputs = {self.nodes[0].getnewaddress():1.1}
 485         rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
 486         fundedTx = self.nodes[1].fundrawtransaction(rawtx)
 487
 488         #now we need to unlock
 489         self.nodes[1].walletpassphrase("test", 600)
 490         signedTx = self.nodes[1].signrawtransaction(fundedTx['hex'])
 491         txId = self.nodes[1].sendrawtransaction(signedTx['hex'])
 492         self.nodes[1].generate(1)
 493         self.sync_all()
 494
 495         # make sure funds are received at node1
 496         assert_equal(oldBalance+Decimal('51.10000000'), self.nodes[0].getbalance())
 497
 498
 499         ###############################################
 500         # multiple (~19) inputs tx test | Compare fee #
 501         ###############################################
 502
 503         #empty node1, send some small coins from node0 to node1
 504         self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), self.nodes[1].getbalance(), "", "", True)
 505         self.sync_all()
 506         self.nodes[0].generate(1)
 507         self.sync_all()
 508
 509         for i in range(0,20):
 510             self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.01)
 511         self.nodes[0].generate(1)
 512         self.sync_all()
 513
 514         #fund a tx with ~20 small inputs
 515         inputs = []
 516         outputs = {self.nodes[0].getnewaddress():0.15,self.nodes[0].getnewaddress():0.04}
 517         rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
 518         fundedTx = self.nodes[1].fundrawtransaction(rawtx)
 519
 520         #create same transaction over sendtoaddress
 521         txId = self.nodes[1].sendmany("", outputs)
 522         signedFee = self.nodes[1].getrawmempool(True)[txId]['fee']
 523
 524         #compare fee
 525         feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
 526         assert(feeDelta >= 0 and feeDelta <= feeTolerance*19) #~19 inputs
 527
 528
 529         #############################################
 530         # multiple (~19) inputs tx test | sign/send #
 531         #############################################
 532
 533         #again, empty node1, send some small coins from node0 to node1
 534         self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), self.nodes[1].getbalance(), "", "", True)
 535         self.sync_all()
 536         self.nodes[0].generate(1)
 537         self.sync_all()
 538
 539         for i in range(0,20):
 540             self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.01)
 541         self.nodes[0].generate(1)
 542         self.sync_all()
 543
 544         #fund a tx with ~20 small inputs
 545         oldBalance = self.nodes[0].getbalance()
 546
 547         inputs = []
 548         outputs = {self.nodes[0].getnewaddress():0.15,self.nodes[0].getnewaddress():0.04}
 549         rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
 550         fundedTx = self.nodes[1].fundrawtransaction(rawtx)
 551         fundedAndSignedTx = self.nodes[1].signrawtransaction(fundedTx['hex'])
 552         txId = self.nodes[1].sendrawtransaction(fundedAndSignedTx['hex'])
 553         self.sync_all()
 554         self.nodes[0].generate(1)
 555         self.sync_all()
 556         assert_equal(oldBalance+Decimal('50.19000000'), self.nodes[0].getbalance()) #0.19+block reward
 557
 558         #####################################################
 559         # test fundrawtransaction with OP_RETURN and no vin #
 560         #####################################################
 561
 562         rawtx   = "0100000000010000000000000000066a047465737400000000"
 563         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 564
 565         assert_equal(len(dec_tx['vin']), 0)
 566         assert_equal(len(dec_tx['vout']), 1)
 567
 568         rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
 569         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
 570
 571         assert_greater_than(len(dec_tx['vin']), 0) # at least one vin
 572         assert_equal(len(dec_tx['vout']), 2) # one change output added
 573
 574
 575         ##################################################
 576         # test a fundrawtransaction using only watchonly #
 577         ##################################################
 578
 579         inputs = []
 580         outputs = {self.nodes[2].getnewaddress() : watchonly_amount / 2}
 581         rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
 582
 583         result = self.nodes[3].fundrawtransaction(rawtx, {'includeWatching': True })
 584         res_dec = self.nodes[0].decoderawtransaction(result["hex"])
 585         assert_equal(len(res_dec["vin"]), 1)
 586         assert_equal(res_dec["vin"][0]["txid"], watchonly_txid)
 587
 588         assert("fee" in result.keys())
 589         assert_greater_than(result["changepos"], -1)
 590
 591         ###############################################################
 592         # test fundrawtransaction using the entirety of watched funds #
 593         ###############################################################
 594
 595         inputs = []
 596         outputs = {self.nodes[2].getnewaddress() : watchonly_amount}
 597         rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
 598
 599         # Backward compatibility test (2nd param is includeWatching)
 600         result = self.nodes[3].fundrawtransaction(rawtx, True)
 601         res_dec = self.nodes[0].decoderawtransaction(result["hex"])
 602         assert_equal(len(res_dec["vin"]), 2)
 603         assert(res_dec["vin"][0]["txid"] == watchonly_txid or res_dec["vin"][1]["txid"] == watchonly_txid)
 604
 605         assert_greater_than(result["fee"], 0)
 606         assert_greater_than(result["changepos"], -1)
 607         assert_equal(result["fee"] + res_dec["vout"][result["changepos"]]["value"], watchonly_amount / 10)
 608
 609         signedtx = self.nodes[3].signrawtransaction(result["hex"])
 610         assert(not signedtx["complete"])
 611         signedtx = self.nodes[0].signrawtransaction(signedtx["hex"])
 612         assert(signedtx["complete"])
 613         self.nodes[0].sendrawtransaction(signedtx["hex"])
 614         self.nodes[0].generate(1)
 615         self.sync_all()
 616
 617         #######################
 618         # Test feeRate option #
 619         #######################
 620
 621         # Make sure there is exactly one input so coin selection can't skew the result
 622         assert_equal(len(self.nodes[3].listunspent(1)), 1)
 623
 624         inputs = []
 625         outputs = {self.nodes[3].getnewaddress() : 1}
 626         rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
 627         result = self.nodes[3].fundrawtransaction(rawtx) # uses min_relay_tx_fee (set by settxfee)
 628         result2 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee})
 629         result3 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 10*min_relay_tx_fee})
 630         result_fee_rate = result['fee'] * 1000 / count_bytes(result['hex'])
 631         assert_fee_amount(result2['fee'], count_bytes(result2['hex']), 2 * result_fee_rate)
 632         assert_fee_amount(result3['fee'], count_bytes(result3['hex']), 10 * result_fee_rate)
 633
 634         ################################
 635         # Test no address reuse occurs #
 636         ################################
 637
 638         result3 = self.nodes[3].fundrawtransaction(rawtx)
 639         res_dec = self.nodes[0].decoderawtransaction(result3["hex"])
 640         changeaddress = ""
 641         for out in res_dec['vout']:
 642             if out['value'] > 1.0:
 643                 changeaddress += out['scriptPubKey']['addresses'][0]
 644         assert(changeaddress != "")
 645         nextaddr = self.nodes[3].getnewaddress()
 646         # Now the change address key should be removed from the keypool
 647         assert(changeaddress != nextaddr)
 648
 649         ######################################
 650         # Test subtractFeeFromOutputs option #
 651         ######################################
 652
 653         # Make sure there is exactly one input so coin selection can't skew the result
 654         assert_equal(len(self.nodes[3].listunspent(1)), 1)
 655
 656         inputs = []
 657         outputs = {self.nodes[2].getnewaddress(): 1}
 658         rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
 659
 660         result = [self.nodes[3].fundrawtransaction(rawtx), # uses min_relay_tx_fee (set by settxfee)
 661                   self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": []}), # empty subtraction list
 662                   self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0]}), # uses min_relay_tx_fee (set by settxfee)
 663                   self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee}),
 664                   self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee, "subtractFeeFromOutputs": [0]})]
 665
 666         dec_tx = [self.nodes[3].decoderawtransaction(tx['hex']) for tx in result]
 667         output = [d['vout'][1 - r['changepos']]['value'] for d, r in zip(dec_tx, result)]
 668         change = [d['vout'][r['changepos']]['value'] for d, r in zip(dec_tx, result)]
 669
 670         assert_equal(result[0]['fee'], result[1]['fee'], result[2]['fee'])
 671         assert_equal(result[3]['fee'], result[4]['fee'])
 672         assert_equal(change[0], change[1])
 673         assert_equal(output[0], output[1])
 674         assert_equal(output[0], output[2] + result[2]['fee'])
 675         assert_equal(change[0] + result[0]['fee'], change[2])
 676         assert_equal(output[3], output[4] + result[4]['fee'])
 677         assert_equal(change[3] + result[3]['fee'], change[4])
 678
 679         inputs = []
 680         outputs = {self.nodes[2].getnewaddress(): value for value in (1.0, 1.1, 1.2, 1.3)}
 681         rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
 682
 683         result = [self.nodes[3].fundrawtransaction(rawtx),
 684                   # split the fee between outputs 0, 2, and 3, but not output 1
 685                   self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0, 2, 3]})]
 686
 687         dec_tx = [self.nodes[3].decoderawtransaction(result[0]['hex']),
 688                   self.nodes[3].decoderawtransaction(result[1]['hex'])]
 689
 690         # Nested list of non-change output amounts for each transaction
 691         output = [[out['value'] for i, out in enumerate(d['vout']) if i != r['changepos']]
 692                   for d, r in zip(dec_tx, result)]
 693
 694         # List of differences in output amounts between normal and subtractFee transactions
 695         share = [o0 - o1 for o0, o1 in zip(output[0], output[1])]
 696
 697         # output 1 is the same in both transactions
 698         assert_equal(share[1], 0)
 699
 700         # the other 3 outputs are smaller as a result of subtractFeeFromOutputs
 701         assert_greater_than(share[0], 0)
 702         assert_greater_than(share[2], 0)
 703         assert_greater_than(share[3], 0)
 704
 705         # outputs 2 and 3 take the same share of the fee
 706         assert_equal(share[2], share[3])
 707
 708         # output 0 takes at least as much share of the fee, and no more than 2 satoshis more, than outputs 2 and 3
 709         assert_greater_than_or_equal(share[0], share[2])
 710         assert_greater_than_or_equal(share[2] + Decimal(2e-8), share[0])
 711
 712         # the fee is the same in both transactions
 713         assert_equal(result[0]['fee'], result[1]['fee'])
 714
 715         # the total subtracted from the outputs is equal to the fee
 716         assert_equal(share[0] + share[2] + share[3], result[0]['fee'])
 717
 718 if __name__ == '__main__':
 719     RawTransactionsTest().main()