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test: remove unused helpers random_transaction(), make_change() and gather_inputs()

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Sebastian Falbesoner 2020-10-16 13:09:08 +02:00
parent fddce7e199
commit 8ee3536b2b
1 changed files with 0 additions and 57 deletions
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57
test/functional/test_framework/util.py
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@ -12,7 +12,6 @@ import inspect
import json import json
import logging import logging
import os import os
import random
import re import re
import time import time
import unittest import unittest
@ -469,62 +468,6 @@ def find_output(node, txid, amount, *, blockhash=None):
raise RuntimeError("find_output txid %s : %s not found" % (txid, str(amount))) raise RuntimeError("find_output txid %s : %s not found" % (txid, str(amount)))
def gather_inputs(from_node, amount_needed, confirmations_required=1):
"""
Return a random set of unspent txouts that are enough to pay amount_needed
"""
assert confirmations_required >= 0
utxo = from_node.listunspent(confirmations_required)
random.shuffle(utxo)
inputs = []
total_in = Decimal("0.00000000")
while total_in < amount_needed and len(utxo) > 0:
t = utxo.pop()
total_in += t["amount"]
inputs.append({"txid": t["txid"], "vout": t["vout"], "address": t["address"]})
if total_in < amount_needed:
raise RuntimeError("Insufficient funds: need %d, have %d" % (amount_needed, total_in))
return (total_in, inputs)
def make_change(from_node, amount_in, amount_out, fee):
"""
Create change output(s), return them
"""
outputs = {}
amount = amount_out + fee
change = amount_in - amount
if change > amount * 2:
# Create an extra change output to break up big inputs
change_address = from_node.getnewaddress()
# Split change in two, being careful of rounding:
outputs[change_address] = Decimal(change / 2).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
change = amount_in - amount - outputs[change_address]
if change > 0:
outputs[from_node.getnewaddress()] = change
return outputs
def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
"""
Create a random transaction.
Returns (txid, hex-encoded-transaction-data, fee)
"""
from_node = random.choice(nodes)
to_node = random.choice(nodes)
fee = min_fee + fee_increment * random.randint(0, fee_variants)
(total_in, inputs) = gather_inputs(from_node, amount + fee)
outputs = make_change(from_node, total_in, amount, fee)
outputs[to_node.getnewaddress()] = float(amount)
rawtx = from_node.createrawtransaction(inputs, outputs)
signresult = from_node.signrawtransactionwithwallet(rawtx)
txid = from_node.sendrawtransaction(signresult["hex"], 0)
return (txid, signresult["hex"], fee)
# Helper to create at least "count" utxos # Helper to create at least "count" utxos
# Pass in a fee that is sufficient for relay and mining new transactions. # Pass in a fee that is sufficient for relay and mining new transactions.
def create_confirmed_utxos(fee, node, count): def create_confirmed_utxos(fee, node, count):