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-rwxr-xr-xtest/functional/bumpfee.py110
1 files changed, 46 insertions, 64 deletions
diff --git a/test/functional/bumpfee.py b/test/functional/bumpfee.py
index 8f75e9ed4d..172e414188 100755
--- a/test/functional/bumpfee.py
+++ b/test/functional/bumpfee.py
@@ -2,7 +2,17 @@
# Copyright (c) 2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# 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 test_framework.test_framework import BitcoinTestFramework
@@ -57,13 +67,13 @@ class BumpFeeTest(BitcoinTestFramework):
self.log.info("Running tests")
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_segwit_bumpfee_succeeds(rbf_node, dest_address)
test_nonrbf_bumpfee_fails(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_small_output_fails(rbf_node, dest_address)
+ test_dust_to_fee(rbf_node, dest_address)
test_settxfee(rbf_node, dest_address)
test_rebumping(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):
- rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000})
+ rbfid = spend_one_input(rbf_node, dest_address)
rbftx = rbf_node.gettransaction(rbfid)
sync_mempools((rbf_node, peer_node))
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,
"sequence": BIP125_SEQUENCE_NUMBER
}], {dest_address: Decimal("0.0005"),
- get_change_address(rbf_node): Decimal("0.0003")})
+ rbf_node.getrawchangeaddress(): Decimal("0.0003")})
rbfsigned = rbf_node.signrawtransaction(rbfraw)
rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"])
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):
# 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)
@@ -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):
# 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_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.signrawtransaction(tx)
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):
# cannot bump fee with a too-small output
- rbfid = spend_one_input(rbf_node,
- Decimal("0.00100000"),
- {dest_address: 0.00080000,
- get_change_address(rbf_node): Decimal("0.00010000")})
- rbf_node.bumpfee(rbfid, {"totalFee": 20000})
+ rbfid = spend_one_input(rbf_node, dest_address)
+ rbf_node.bumpfee(rbfid, {"totalFee": 50000})
- rbfid = spend_one_input(rbf_node,
- Decimal("0.00100000"),
- {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})
+ rbfid = spend_one_input(rbf_node, dest_address)
+ assert_raises_jsonrpc(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001})
def test_dust_to_fee(rbf_node, dest_address):
# 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
- rbfid = spend_one_input(rbf_node,
- Decimal("0.00100000"),
- {dest_address: 0.00080000,
- get_change_address(rbf_node): Decimal("0.00010000")})
+ # the bumped tx sets fee=49,900, but it converts to 50,000
+ rbfid = spend_one_input(rbf_node, dest_address)
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)
- 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(full_bumped_tx["vout"]), 1) #change output is eliminated
def test_settxfee(rbf_node, dest_address):
# check that bumpfee reacts correctly to the use of settxfee (paytxfee)
- # increase feerate by 2.5x, test that fee increased at least 2x
- rbf_node.settxfee(Decimal("0.00001000"))
- rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000})
+ rbfid = spend_one_input(rbf_node, dest_address)
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)
- 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
def test_rebumping(rbf_node, dest_address):
# check that re-bumping the original tx fails, but bumping the bumper succeeds
- rbf_node.settxfee(Decimal("0.00001000"))
- rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000})
- bumped = rbf_node.bumpfee(rbfid, {"totalFee": 1000})
- assert_raises_jsonrpc(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 2000})
- rbf_node.bumpfee(bumped["txid"], {"totalFee": 2000})
+ rbfid = spend_one_input(rbf_node, dest_address)
+ bumped = rbf_node.bumpfee(rbfid, {"totalFee": 2000})
+ assert_raises_jsonrpc(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000})
+ rbf_node.bumpfee(bumped["txid"], {"totalFee": 3000})
def test_rebumping_not_replaceable(rbf_node, dest_address):
# 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})
assert_raises_jsonrpc(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
{"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):
# 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"]
assert rbfid in rbf_node.getrawmempool()
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):
- 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_wtx = rbf_node.gettransaction(bumped_tx["txid"])
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):
- rbfid = create_fund_sign_send(rbf_node, {dest_address: 0.00090000})
+ rbfid = spend_one_input(rbf_node, dest_address)
rbf_node.walletlock()
assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first.",
rbf_node.bumpfee, rbfid)
-def create_fund_sign_send(node, outputs):
- rawtx = node.createrawtransaction([], outputs)
- fundtx = node.fundrawtransaction(rawtx)
- signedtx = node.signrawtransaction(fundtx["hex"])
- txid = node.sendrawtransaction(signedtx["hex"])
- return txid
-
-
-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)
+def spend_one_input(node, dest_address):
+ tx_input = dict(
+ sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000")))
+ rawtx = node.createrawtransaction(
+ [tx_input], {dest_address: Decimal("0.00050000"),
+ node.getrawchangeaddress(): Decimal("0.00049000")})
signedtx = node.signrawtransaction(rawtx)
txid = node.sendrawtransaction(signedtx["hex"])
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):
ctx = CTransaction()
ctx.deserialize(io.BytesIO(hex_str_to_bytes(tx)))