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Merge #9701: Make bumpfee tests less fragile 

f85ac54 [qa] Expand bumpfee test docstring (Russell Yanofsky)
0b94e49 [qa] Rename python input variable to tx_input (Russell Yanofsky)
1dfd64f [qa] Make bumpfee.py test function order consistent (Russell Yanofsky)
e6b2963 [qa] Get rid of nondeterminism in bumpfee.py (Russell Yanofsky)
94b528b [qa] Remove bumpfee.py get_change_address hack (Russell Yanofsky)

Tree-SHA512: 4017d58fe73837a0dfcca69c43f804498833f946efd9bc394877be242aa40b03d60bd6c3672ed5d24db88b3318304c1f2838050ec5fa6458d1a7e1f566ccda3e
0.15
MarcoFalke 8 years ago
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dfef6b6af0 f85ac54e24
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a230b05887
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1 changed files with 46 additions and 64 deletions
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  1. 110
      test/functional/bumpfee.py

110
test/functional/bumpfee.py
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@ -2,7 +2,17 @@
# Copyright (c) 2016 The Bitcoin Core developers # Copyright (c) 2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying # Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php. # file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test the bumpfee RPC.""" """Test the bumpfee RPC.
Verifies that the bumpfee RPC creates replacement transactions successfully when
its preconditions are met, and returns appropriate errors in other cases.
This module consists of around a dozen individual test cases implemented in the
top-level functions named as test_<test_case_description>. The test functions
can be disabled or reordered if needed for debugging. If new test cases are
added in the the future, they should try to follow the same convention and not
make assumptions about execution order.
"""
from segwit import send_to_witness from segwit import send_to_witness
from test_framework.test_framework import BitcoinTestFramework from test_framework.test_framework import BitcoinTestFramework
@ -57,13 +67,13 @@ class BumpFeeTest(BitcoinTestFramework):
self.log.info("Running tests") self.log.info("Running tests")
dest_address = peer_node.getnewaddress() dest_address = peer_node.getnewaddress()
test_small_output_fails(rbf_node, dest_address)
test_dust_to_fee(rbf_node, dest_address)
test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address) test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address)
test_segwit_bumpfee_succeeds(rbf_node, dest_address) test_segwit_bumpfee_succeeds(rbf_node, dest_address)
test_nonrbf_bumpfee_fails(peer_node, dest_address) test_nonrbf_bumpfee_fails(peer_node, dest_address)
test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address) test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address)
test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address) test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address)
test_small_output_fails(rbf_node, dest_address)
test_dust_to_fee(rbf_node, dest_address)
test_settxfee(rbf_node, dest_address) test_settxfee(rbf_node, dest_address)
test_rebumping(rbf_node, dest_address) test_rebumping(rbf_node, dest_address)
test_rebumping_not_replaceable(rbf_node, dest_address) test_rebumping_not_replaceable(rbf_node, dest_address)
@ -74,7 +84,7 @@ class BumpFeeTest(BitcoinTestFramework):
def test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address): def test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address):
rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000}) rbfid = spend_one_input(rbf_node, dest_address)
rbftx = rbf_node.gettransaction(rbfid) rbftx = rbf_node.gettransaction(rbfid)
sync_mempools((rbf_node, peer_node)) sync_mempools((rbf_node, peer_node))
assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool() assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool()
@ -115,7 +125,7 @@ def test_segwit_bumpfee_succeeds(rbf_node, dest_address):
'vout': 0, 'vout': 0,
"sequence": BIP125_SEQUENCE_NUMBER "sequence": BIP125_SEQUENCE_NUMBER
}], {dest_address: Decimal("0.0005"), }], {dest_address: Decimal("0.0005"),
get_change_address(rbf_node): Decimal("0.0003")}) rbf_node.getrawchangeaddress(): Decimal("0.0003")})
rbfsigned = rbf_node.signrawtransaction(rbfraw) rbfsigned = rbf_node.signrawtransaction(rbfraw)
rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"]) rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"])
assert rbfid in rbf_node.getrawmempool() assert rbfid in rbf_node.getrawmempool()
@ -127,7 +137,7 @@ def test_segwit_bumpfee_succeeds(rbf_node, dest_address):
def test_nonrbf_bumpfee_fails(peer_node, dest_address): def test_nonrbf_bumpfee_fails(peer_node, dest_address):
# cannot replace a non RBF transaction (from node which did not enable RBF) # cannot replace a non RBF transaction (from node which did not enable RBF)
not_rbfid = create_fund_sign_send(peer_node, {dest_address: 0.00090000}) not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000"))
assert_raises_jsonrpc(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid) assert_raises_jsonrpc(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)
@ -155,7 +165,7 @@ def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address):
def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address): def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address):
# cannot bump fee if the transaction has a descendant # cannot bump fee if the transaction has a descendant
# parent is send-to-self, so we don't have to check which output is change when creating the child tx # parent is send-to-self, so we don't have to check which output is change when creating the child tx
parent_id = create_fund_sign_send(rbf_node, {rbf_node_address: 0.00050000}) parent_id = spend_one_input(rbf_node, rbf_node_address)
tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000}) tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000})
tx = rbf_node.signrawtransaction(tx) tx = rbf_node.signrawtransaction(tx)
txid = rbf_node.sendrawtransaction(tx["hex"]) txid = rbf_node.sendrawtransaction(tx["hex"])
@ -164,58 +174,50 @@ def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address)
def test_small_output_fails(rbf_node, dest_address): def test_small_output_fails(rbf_node, dest_address):
# cannot bump fee with a too-small output # cannot bump fee with a too-small output
rbfid = spend_one_input(rbf_node, rbfid = spend_one_input(rbf_node, dest_address)
Decimal("0.00100000"), rbf_node.bumpfee(rbfid, {"totalFee": 50000})
{dest_address: 0.00080000,
get_change_address(rbf_node): Decimal("0.00010000")})
rbf_node.bumpfee(rbfid, {"totalFee": 20000})
rbfid = spend_one_input(rbf_node, rbfid = spend_one_input(rbf_node, dest_address)
Decimal("0.00100000"), assert_raises_jsonrpc(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001})
{dest_address: 0.00080000,
get_change_address(rbf_node): Decimal("0.00010000")})
assert_raises_jsonrpc(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 20001})
def test_dust_to_fee(rbf_node, dest_address): def test_dust_to_fee(rbf_node, dest_address):
# check that if output is reduced to dust, it will be converted to fee # check that if output is reduced to dust, it will be converted to fee
# the bumped tx sets fee=9900, but it converts to 10,000 # the bumped tx sets fee=49,900, but it converts to 50,000
rbfid = spend_one_input(rbf_node, rbfid = spend_one_input(rbf_node, dest_address)
Decimal("0.00100000"),
{dest_address: 0.00080000,
get_change_address(rbf_node): Decimal("0.00010000")})
fulltx = rbf_node.getrawtransaction(rbfid, 1) fulltx = rbf_node.getrawtransaction(rbfid, 1)
bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 19900}) bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 49900})
full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1) full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1)
assert_equal(bumped_tx["fee"], Decimal("0.00020000")) assert_equal(bumped_tx["fee"], Decimal("0.00050000"))
assert_equal(len(fulltx["vout"]), 2) assert_equal(len(fulltx["vout"]), 2)
assert_equal(len(full_bumped_tx["vout"]), 1) #change output is eliminated assert_equal(len(full_bumped_tx["vout"]), 1) #change output is eliminated
def test_settxfee(rbf_node, dest_address): def test_settxfee(rbf_node, dest_address):
# check that bumpfee reacts correctly to the use of settxfee (paytxfee) # check that bumpfee reacts correctly to the use of settxfee (paytxfee)
# increase feerate by 2.5x, test that fee increased at least 2x rbfid = spend_one_input(rbf_node, dest_address)
rbf_node.settxfee(Decimal("0.00001000"))
rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000})
rbftx = rbf_node.gettransaction(rbfid) rbftx = rbf_node.gettransaction(rbfid)
rbf_node.settxfee(Decimal("0.00002500")) requested_feerate = Decimal("0.00025000")
rbf_node.settxfee(requested_feerate)
bumped_tx = rbf_node.bumpfee(rbfid) bumped_tx = rbf_node.bumpfee(rbfid)
assert bumped_tx["fee"] > 2 * abs(rbftx["fee"]) actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["size"]
# Assert that the difference between the requested feerate and the actual
# feerate of the bumped transaction is small.
assert_greater_than(Decimal("0.00001000"), abs(requested_feerate - actual_feerate))
rbf_node.settxfee(Decimal("0.00000000")) # unset paytxfee rbf_node.settxfee(Decimal("0.00000000")) # unset paytxfee
def test_rebumping(rbf_node, dest_address): def test_rebumping(rbf_node, dest_address):
# check that re-bumping the original tx fails, but bumping the bumper succeeds # check that re-bumping the original tx fails, but bumping the bumper succeeds
rbf_node.settxfee(Decimal("0.00001000")) rbfid = spend_one_input(rbf_node, dest_address)
rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000}) bumped = rbf_node.bumpfee(rbfid, {"totalFee": 2000})
bumped = rbf_node.bumpfee(rbfid, {"totalFee": 1000}) assert_raises_jsonrpc(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000})
assert_raises_jsonrpc(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 2000}) rbf_node.bumpfee(bumped["txid"], {"totalFee": 3000})
rbf_node.bumpfee(bumped["txid"], {"totalFee": 2000})
def test_rebumping_not_replaceable(rbf_node, dest_address): def test_rebumping_not_replaceable(rbf_node, dest_address):
# check that re-bumping a non-replaceable bump tx fails # check that re-bumping a non-replaceable bump tx fails
rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000}) rbfid = spend_one_input(rbf_node, dest_address)
bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False}) bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False})
assert_raises_jsonrpc(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"], assert_raises_jsonrpc(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
{"totalFee": 20000}) {"totalFee": 20000})
@ -223,7 +225,7 @@ def test_rebumping_not_replaceable(rbf_node, dest_address):
def test_unconfirmed_not_spendable(rbf_node, rbf_node_address): def test_unconfirmed_not_spendable(rbf_node, rbf_node_address):
# check that unconfirmed outputs from bumped transactions are not spendable # check that unconfirmed outputs from bumped transactions are not spendable
rbfid = create_fund_sign_send(rbf_node, {rbf_node_address: 0.00090000}) rbfid = spend_one_input(rbf_node, rbf_node_address)
rbftx = rbf_node.gettransaction(rbfid)["hex"] rbftx = rbf_node.gettransaction(rbfid)["hex"]
assert rbfid in rbf_node.getrawmempool() assert rbfid in rbf_node.getrawmempool()
bumpid = rbf_node.bumpfee(rbfid)["txid"] bumpid = rbf_node.bumpfee(rbfid)["txid"]
@ -258,7 +260,7 @@ def test_unconfirmed_not_spendable(rbf_node, rbf_node_address):
def test_bumpfee_metadata(rbf_node, dest_address): def test_bumpfee_metadata(rbf_node, dest_address):
rbfid = rbf_node.sendtoaddress(dest_address, 0.00090000, "comment value", "to value") rbfid = rbf_node.sendtoaddress(dest_address, Decimal("0.00100000"), "comment value", "to value")
bumped_tx = rbf_node.bumpfee(rbfid) bumped_tx = rbf_node.bumpfee(rbfid)
bumped_wtx = rbf_node.gettransaction(bumped_tx["txid"]) bumped_wtx = rbf_node.gettransaction(bumped_tx["txid"])
assert_equal(bumped_wtx["comment"], "comment value") assert_equal(bumped_wtx["comment"], "comment value")
@ -266,43 +268,23 @@ def test_bumpfee_metadata(rbf_node, dest_address):
def test_locked_wallet_fails(rbf_node, dest_address): def test_locked_wallet_fails(rbf_node, dest_address):
rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000}) rbfid = spend_one_input(rbf_node, dest_address)
rbf_node.walletlock() rbf_node.walletlock()
assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first.", assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first.",
rbf_node.bumpfee, rbfid) rbf_node.bumpfee, rbfid)
def create_fund_sign_send(node, outputs): def spend_one_input(node, dest_address):
rawtx = node.createrawtransaction([], outputs) tx_input = dict(
fundtx = node.fundrawtransaction(rawtx) sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000")))
signedtx = node.signrawtransaction(fundtx["hex"]) rawtx = node.createrawtransaction(
txid = node.sendrawtransaction(signedtx["hex"]) [tx_input], {dest_address: Decimal("0.00050000"),
return txid node.getrawchangeaddress(): Decimal("0.00049000")})
def spend_one_input(node, input_amount, outputs):
input = dict(sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == input_amount))
rawtx = node.createrawtransaction([input], outputs)
signedtx = node.signrawtransaction(rawtx) signedtx = node.signrawtransaction(rawtx)
txid = node.sendrawtransaction(signedtx["hex"]) txid = node.sendrawtransaction(signedtx["hex"])
return txid return txid
def get_change_address(node):
"""Get a wallet change address.
There is no wallet RPC to access unused change addresses, so this creates a
dummy transaction, calls fundrawtransaction to give add an input and change
output, then returns the change address."""
dest_address = node.getnewaddress()
dest_amount = Decimal("0.00012345")
rawtx = node.createrawtransaction([], {dest_address: dest_amount})
fundtx = node.fundrawtransaction(rawtx)
info = node.decoderawtransaction(fundtx["hex"])
return next(address for out in info["vout"]
if out["value"] != dest_amount for address in out["scriptPubKey"]["addresses"])
def submit_block_with_tx(node, tx): def submit_block_with_tx(node, tx):
ctx = CTransaction() ctx = CTransaction()
ctx.deserialize(io.BytesIO(hex_str_to_bytes(tx))) ctx.deserialize(io.BytesIO(hex_str_to_bytes(tx)))

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