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tests: Test for bumping single output transaction

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This commit is contained in:
Andrew Chow 2023-03-17 18:49:42 -04:00
parent 4f4d4407e3
commit e8c31f135c
1 changed files with 39 additions and 0 deletions
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39
test/functional/wallet_bumpfee.py
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@ -24,6 +24,7 @@ from test_framework.messages import (
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_fee_amount,
assert_greater_than,
assert_raises_rpc_error,
get_fee,
@ -111,6 +112,7 @@ class BumpFeeTest(BitcoinTestFramework):
test_no_more_inputs_fails(self, rbf_node, dest_address)
self.test_bump_back_to_yourself()
self.test_provided_change_pos(rbf_node)
self.test_single_output()
# Context independent tests
test_feerate_checks_replaced_outputs(self, rbf_node, peer_node)
@ -263,6 +265,43 @@ class BumpFeeTest(BitcoinTestFramework):
assert_greater_than(change_value, new_change_value)
def test_single_output(self):
self.log.info("Test that single output txs can be bumped")
node = self.nodes[1]
node.createwallet("single_out_rbf")
wallet = node.get_wallet_rpc("single_out_rbf")
addr = wallet.getnewaddress()
amount = Decimal("0.001")
# Make 2 UTXOs
self.nodes[0].sendtoaddress(addr, amount)
self.nodes[0].sendtoaddress(addr, amount)
self.generate(self.nodes[0], 1)
utxos = wallet.listunspent()
tx = wallet.sendall(recipients=[wallet.getnewaddress()], fee_rate=2, options={"inputs": [utxos[0]]})
# Reduce the only output with a crazy high feerate, should fail as the output would be dust
assert_raises_rpc_error(-4, "The transaction amount is too small to pay the fee", wallet.bumpfee, txid=tx["txid"], options={"fee_rate": 1100, "reduce_output": 0})
# Reduce the only output successfully
bumped = wallet.bumpfee(txid=tx["txid"], options={"fee_rate": 10, "reduce_output": 0})
bumped_tx = wallet.gettransaction(txid=bumped["txid"], verbose=True)
assert_equal(len(bumped_tx["decoded"]["vout"]), 1)
assert_equal(len(bumped_tx["decoded"]["vin"]), 1)
assert_equal(bumped_tx["decoded"]["vout"][0]["value"] + bumped["fee"], amount)
assert_fee_amount(bumped["fee"], bumped_tx["decoded"]["vsize"], Decimal(10) / Decimal(1e8) * 1000)
# Bumping without reducing adds a new input and output
bumped = wallet.bumpfee(txid=bumped["txid"], options={"fee_rate": 20})
bumped_tx = wallet.gettransaction(txid=bumped["txid"], verbose=True)
assert_equal(len(bumped_tx["decoded"]["vout"]), 2)
assert_equal(len(bumped_tx["decoded"]["vin"]), 2)
assert_fee_amount(bumped["fee"], bumped_tx["decoded"]["vsize"], Decimal(20) / Decimal(1e8) * 1000)
wallet.unloadwallet()
def test_simple_bumpfee_succeeds(self, mode, rbf_node, peer_node, dest_address):
self.log.info('Test simple bumpfee: {}'.format(mode))
rbfid = spend_one_input(rbf_node, dest_address)