def test_anc_size_limits(self):
"""Test Case with 2 independent transactions in the mempool and a parent + child in the
package, where the package parent is the child of both mempool transactions (30KvB each):
A B
^ ^
C
^
D
The lowest descendant, D, exceeds ancestor size limits, but only if the in-mempool
and in-package ancestors are all considered together.
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
parents_tx = []
values = []
scripts = []
target_weight = WITNESS_SCALE_FACTOR * 1000 * 30 # 30KvB
high_fee = Decimal("0.003") # 10 sats/vB
self.log.info("Check that in-mempool and in-package ancestor size limits are calculated properly in packages")
# Mempool transactions A and B
for _ in range(2):
spk = None
top_coin = self.coins.pop()
txid = top_coin["txid"]
value = top_coin["amount"]
(tx, _, _, _) = make_chain(node, self.address, self.privkeys, txid, value, 0, spk, high_fee)
bulked_tx = bulk_transaction(tx, node, target_weight, self.privkeys)
node.sendrawtransaction(bulked_tx.serialize().hex())
parents_tx.append(bulked_tx)
values.append(Decimal(bulked_tx.vout[0].nValue) / COIN)
scripts.append(bulked_tx.vout[0].scriptPubKey.hex())
# Package transaction C
small_pc_hex = create_child_with_parents(node, self.address, self.privkeys, parents_tx, values, scripts, high_fee)
pc_tx = bulk_transaction(tx_from_hex(small_pc_hex), node, target_weight, self.privkeys)
pc_value = Decimal(pc_tx.vout[0].nValue) / COIN
pc_spk = pc_tx.vout[0].scriptPubKey.hex()
pc_hex = pc_tx.serialize().hex()
# Package transaction D
(small_pd, _, val, spk) = make_chain(node, self.address, self.privkeys, pc_tx.rehash(), pc_value, 0, pc_spk, high_fee)
prevtxs = [{
"txid": pc_tx.rehash(),
"vout": 0,
"scriptPubKey": spk,
"amount": val,
}]
pd_tx = bulk_transaction(small_pd, node, target_weight, self.privkeys, prevtxs)
pd_hex = pd_tx.serialize().hex()
assert_equal(2, node.getmempoolinfo()["size"])
testres_too_heavy = node.testmempoolaccept(rawtxs=[pc_hex, pd_hex])
for txres in testres_too_heavy:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
node.generate(1)
assert all([res["allowed"] for res in node.testmempoolaccept(rawtxs=[pc_hex, pd_hex])])
def test_anc_count_limits_2(self):
"""Create a 'Y' shaped chain with 24 transactions in the mempool and 2 in the package:
M1a M1b
^ ^
M2a M2b
. .
. .
. .
M12a M12b
^ ^
Pc
^
Pd
The lowest descendant, Pd, exceeds ancestor limits, but only if the in-mempool
and in-package ancestors are all considered together.
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
parents_tx = []
values = []
scripts = []
self.log.info("Check that in-mempool and in-package ancestors are calculated properly in packages")
# Two chains of 12 transactions each
for _ in range(2):
spk = None
top_coin = self.coins.pop()
txid = top_coin["txid"]
value = top_coin["amount"]
for i in range(12):
(tx, txhex, value, spk) = make_chain(node, self.address, self.privkeys, txid, value, 0, spk)
txid = tx.rehash()
value -= Decimal("0.0001")
node.sendrawtransaction(txhex)
if i == 11:
# last 2 transactions will be the parents of Pc
parents_tx.append(tx)
values.append(value)
scripts.append(spk)
# Child Pc
pc_hex = create_child_with_parents(node, self.address, self.privkeys, parents_tx, values, scripts)
pc_tx = tx_from_hex(pc_hex)
pc_value = sum(values) - Decimal("0.0002")
pc_spk = pc_tx.vout[0].scriptPubKey.hex()
# Child Pd
(_, pd_hex, _, _) = make_chain(node, self.address, self.privkeys, pc_tx.rehash(), pc_value, 0, pc_spk)
assert_equal(24, node.getmempoolinfo()["size"])
testres_too_long = node.testmempoolaccept(rawtxs=[pc_hex, pd_hex])
for txres in testres_too_long:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
node.generate(1)
assert all([res["allowed"] for res in node.testmempoolaccept(rawtxs=[pc_hex, pd_hex])])
def test_submit_cpfp(self):
node = self.nodes[0]
peer = node.add_p2p_connection(P2PTxInvStore())
# 2 parent 1 child CPFP. First parent pays high fees, second parent pays 0 fees and is
# fee-bumped by the child.
coin_rich = self.coins.pop()
coin_poor = self.coins.pop()
tx_rich, hex_rich, value_rich, spk_rich = make_chain(
node, self.address, self.privkeys, coin_rich["txid"],
coin_rich["amount"])
tx_poor, hex_poor, value_poor, spk_poor = make_chain(
node,
self.address,
self.privkeys,
coin_poor["txid"],
coin_poor["amount"],
fee=0)
package_txns = [tx_rich, tx_poor]
hex_child = create_child_with_parents(node, self.address,
self.privkeys, package_txns,
[value_rich, value_poor],
[spk_rich, spk_poor])
tx_child = tx_from_hex(hex_child)
package_txns.append(tx_child)
submitpackage_result = node.submitpackage(
[hex_rich, hex_poor, hex_child])
rich_parent_result = submitpackage_result["tx-results"][
tx_rich.getwtxid()]
poor_parent_result = submitpackage_result["tx-results"][
tx_poor.getwtxid()]
child_result = submitpackage_result["tx-results"][tx_child.getwtxid()]
assert_equal(rich_parent_result["fees"]["base"], DEFAULT_FEE)
assert_equal(poor_parent_result["fees"]["base"], 0)
assert_equal(child_result["fees"]["base"], DEFAULT_FEE)
# Package feerate is calculated for the remaining transactions after deduplication and
# individual submission. Since this package had a 0-fee parent, package feerate must have
# been used and returned.
assert "package-feerate" in submitpackage_result
assert_fee_amount(DEFAULT_FEE,
rich_parent_result["vsize"] + child_result["vsize"],
submitpackage_result["package-feerate"])
# The node will broadcast each transaction, still abiding by its peer's fee filter
peer.wait_for_broadcast([tx.getwtxid() for tx in package_txns])
self.generate(node, 1)
def test_multiple_children(self):
node = self.nodes[0]
self.log.info(
"Testmempoolaccept a package in which a transaction has two children within the package"
)
first_coin = self.coins.pop()
value = (first_coin["amount"] - Decimal("0.0002")
) / 2 # Deduct reasonable fee and make 2 outputs
inputs = [{"txid": first_coin["txid"], "vout": 0}]
outputs = [{self.address: value}, {ADDRESS_BCRT1_P2WSH_OP_TRUE: value}]
rawtx = node.createrawtransaction(inputs, outputs)
parent_signed = node.signrawtransactionwithkey(hexstring=rawtx,
privkeys=self.privkeys)
assert parent_signed["complete"]
parent_tx = tx_from_hex(parent_signed["hex"])
parent_txid = parent_tx.rehash()
assert node.testmempoolaccept([parent_signed["hex"]])[0]["allowed"]
parent_locking_script_a = parent_tx.vout[0].scriptPubKey.hex()
child_value = value - Decimal("0.0001")
# Child A
(_, tx_child_a_hex, _,
_) = make_chain(node, self.address, self.privkeys, parent_txid,
child_value, 0, parent_locking_script_a)
assert not node.testmempoolaccept([tx_child_a_hex])[0]["allowed"]
# Child B
rawtx_b = node.createrawtransaction([{
"txid": parent_txid,
"vout": 1
}], {self.address: child_value})
tx_child_b = tx_from_hex(rawtx_b)
tx_child_b.wit.vtxinwit = [CTxInWitness()]
tx_child_b.wit.vtxinwit[0].scriptWitness.stack = [CScript([OP_TRUE])]
tx_child_b_hex = tx_child_b.serialize().hex()
assert not node.testmempoolaccept([tx_child_b_hex])[0]["allowed"]
self.log.info(
"Testmempoolaccept with entire package, should work with children in either order"
)
testres_multiple_ab = node.testmempoolaccept(
rawtxs=[parent_signed["hex"], tx_child_a_hex, tx_child_b_hex])
testres_multiple_ba = node.testmempoolaccept(
rawtxs=[parent_signed["hex"], tx_child_b_hex, tx_child_a_hex])
assert all([
testres["allowed"]
for testres in testres_multiple_ab + testres_multiple_ba
])
testres_single = []
# Test accept and then submit each one individually, which should be identical to package testaccept
for rawtx in [parent_signed["hex"], tx_child_a_hex, tx_child_b_hex]:
testres = node.testmempoolaccept([rawtx])
testres_single.append(testres[0])
# Submit the transaction now so its child should have no problem validating
node.sendrawtransaction(rawtx)
assert_equal(testres_single, testres_multiple_ab)
def test_chain_limits_helper(self, mempool_count, package_count):
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
first_coin = self.coins.pop()
spk = None
txid = first_coin["txid"]
chain_hex = []
chain_txns = []
value = first_coin["amount"]
for i in range(mempool_count + package_count):
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys, txid, value, 0,
spk)
txid = tx.rehash()
if i < mempool_count:
node.sendrawtransaction(txhex)
assert_equal(
node.getmempoolentry(txid)["ancestorcount"], i + 1)
else:
chain_hex.append(txhex)
chain_txns.append(tx)
testres_too_long = node.testmempoolaccept(rawtxs=chain_hex)
for txres in testres_too_long:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
self.generate(node, 1)
assert all([
res["allowed"] for res in node.testmempoolaccept(rawtxs=chain_hex)
])
def test_multiple_parents(self):
node = self.nodes[0]
self.log.info("Testmempoolaccept a package in which a transaction has multiple parents within the package")
for num_parents in [2, 10, 24]:
# Test a package with num_parents parents and 1 child transaction.
package_hex = []
parents_tx = []
values = []
parent_locking_scripts = []
for _ in range(num_parents):
parent_coin = self.coins.pop()
value = parent_coin["amount"]
(tx, txhex, value, parent_locking_script) = make_chain(node, self.address, self.privkeys, parent_coin["txid"], value)
package_hex.append(txhex)
parents_tx.append(tx)
values.append(value)
parent_locking_scripts.append(parent_locking_script)
child_hex = create_child_with_parents(node, self.address, self.privkeys, parents_tx, values, parent_locking_scripts)
# Package accept should work with the parents in any order (as long as parents come before child)
for _ in range(10):
random.shuffle(package_hex)
testres_multiple = node.testmempoolaccept(rawtxs=package_hex + [child_hex])
assert all([testres["allowed"] for testres in testres_multiple])
testres_single = []
# Test accept and then submit each one individually, which should be identical to package testaccept
for rawtx in package_hex + [child_hex]:
testres_single.append(node.testmempoolaccept([rawtx])[0])
# Submit the transaction now so its child should have no problem validating
node.sendrawtransaction(rawtx)
assert_equal(testres_single, testres_multiple)
def test_anc_count_limits_bushy(self):
"""Create a tree with 20 transactions in the mempool and 6 in the package:
M1...M4 M5...M8 M9...M12 M13...M16 M17...M20
^ ^ ^ ^ ^ (each with 4 parents)
P0 P1 P2 P3 P4
^ ^ ^ ^ ^ (5 parents)
PC
Where M(4i+1)...M+(4i+4) are the parents of Pi and P0, P1, P2, P3, and P4 are the parents of PC.
P0... P4 individually only have 4 parents each, and PC has no in-mempool parents. But
combined, PC has 25 in-mempool and in-package parents.
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
package_hex = []
parent_txns = []
parent_values = []
scripts = []
for _ in range(5): # Make package transactions P0 ... P4
gp_tx = []
gp_values = []
gp_scripts = []
for _ in range(4): # Make mempool transactions M(4i+1)...M(4i+4)
parent_coin = self.coins.pop()
value = parent_coin["amount"]
txid = parent_coin["txid"]
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys, txid,
value)
gp_tx.append(tx)
gp_values.append(value)
gp_scripts.append(spk)
node.sendrawtransaction(txhex)
# Package transaction Pi
pi_hex = create_child_with_parents(node, self.address,
self.privkeys, gp_tx, gp_values,
gp_scripts)
package_hex.append(pi_hex)
pi_tx = tx_from_hex(pi_hex)
parent_txns.append(pi_tx)
parent_values.append(Decimal(pi_tx.vout[0].nValue) / COIN)
scripts.append(pi_tx.vout[0].scriptPubKey.hex())
# Package transaction PC
package_hex.append(
create_child_with_parents(node, self.address, self.privkeys,
parent_txns, parent_values, scripts))
assert_equal(20, node.getmempoolinfo()["size"])
assert_equal(6, len(package_hex))
testres = node.testmempoolaccept(rawtxs=package_hex)
for txres in testres:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
self.generate(node, 1)
assert all([
res["allowed"]
for res in node.testmempoolaccept(rawtxs=package_hex)
])
def test_submit_child_with_parents(self, num_parents, partial_submit):
node = self.nodes[0]
peer = node.add_p2p_connection(P2PTxInvStore())
# Test a package with num_parents parents and 1 child transaction.
package_hex = []
package_txns = []
values = []
scripts = []
for _ in range(num_parents):
parent_coin = self.coins.pop()
value = parent_coin["amount"]
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys,
parent_coin["txid"], value)
package_hex.append(txhex)
package_txns.append(tx)
values.append(value)
scripts.append(spk)
if partial_submit and random.choice([True, False]):
node.sendrawtransaction(txhex)
child_hex = create_child_with_parents(node, self.address,
self.privkeys, package_txns,
values, scripts)
package_hex.append(child_hex)
package_txns.append(tx_from_hex(child_hex))
testmempoolaccept_result = node.testmempoolaccept(rawtxs=package_hex)
submitpackage_result = node.submitpackage(package=package_hex)
# Check that each result is present, with the correct size and fees
for i in range(num_parents + 1):
tx = package_txns[i]
wtxid = tx.getwtxid()
assert wtxid in submitpackage_result["tx-results"]
tx_result = submitpackage_result["tx-results"][wtxid]
assert_equal(
tx_result, {
"txid": tx.rehash(),
"vsize": tx.get_vsize(),
"fees": {
"base": DEFAULT_FEE,
}
})
# submitpackage result should be consistent with testmempoolaccept and getmempoolentry
self.assert_equal_package_results(node, testmempoolaccept_result,
submitpackage_result)
# Package feerate is calculated for the remaining transactions after deduplication and
# individual submission. If only 0 or 1 transaction is left, e.g. because all transactions
# had high-feerates or were already in the mempool, no package feerate is provided.
# In this case, since all of the parents have high fees, each is accepted individually.
assert "package-feerate" not in submitpackage_result
# The node should announce each transaction. No guarantees for propagation.
peer.wait_for_broadcast([tx.getwtxid() for tx in package_txns])
self.generate(node, 1)
def test_anc_count_limits(self):
"""Create a 'V' shaped chain with 24 transactions in the mempool and 3 in the package:
M1a M1b
^ ^
M2a M2b
. .
. .
. .
M12a M12b
^ ^
Pa Pb
^ ^
Pc
The lowest descendant, Pc, exceeds ancestor limits, but only if the in-mempool
and in-package ancestors are all considered together.
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
package_hex = []
parents_tx = []
values = []
scripts = []
self.log.info("Check that in-mempool and in-package ancestors are calculated properly in packages")
# Two chains of 13 transactions each
for _ in range(2):
spk = None
top_coin = self.coins.pop()
txid = top_coin["txid"]
value = top_coin["amount"]
for i in range(13):
(tx, txhex, value, spk) = make_chain(node, self.address, self.privkeys, txid, value, 0, spk)
txid = tx.rehash()
if i < 12:
node.sendrawtransaction(txhex)
else: # Save the 13th transaction for the package
package_hex.append(txhex)
parents_tx.append(tx)
scripts.append(spk)
values.append(value)
# Child Pc
child_hex = create_child_with_parents(node, self.address, self.privkeys, parents_tx, values, scripts)
package_hex.append(child_hex)
assert_equal(24, node.getmempoolinfo()["size"])
assert_equal(3, len(package_hex))
testres_too_long = node.testmempoolaccept(rawtxs=package_hex)
for txres in testres_too_long:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
node.generate(1)
assert all([res["allowed"] for res in node.testmempoolaccept(rawtxs=package_hex)])
def test_desc_size_limits(self):
"""Create 3 mempool transactions and 2 package transactions (25KvB each):
Ma
^ ^
Mb Mc
^ ^
Pd Pe
The top ancestor in the package exceeds descendant size limits but only if the in-mempool
and in-package descendants are all considered together.
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
target_weight = 21 * 1000 * WITNESS_SCALE_FACTOR
high_fee = Decimal("0.0021") # 10 sats/vB
self.log.info(
"Check that in-mempool and in-package descendant sizes are calculated properly in packages"
)
# Top parent in mempool, Ma
first_coin = self.coins.pop()
parent_value = (first_coin["amount"] -
high_fee) / 2 # Deduct fee and make 2 outputs
inputs = [{"txid": first_coin["txid"], "vout": 0}]
outputs = [{
self.address: parent_value
}, {
ADDRESS_BCRT1_P2WSH_OP_TRUE: parent_value
}]
rawtx = node.createrawtransaction(inputs, outputs)
parent_tx = bulk_transaction(tx_from_hex(rawtx), node, target_weight,
self.privkeys)
node.sendrawtransaction(parent_tx.serialize().hex())
package_hex = []
for j in range(2): # Two legs (left and right)
# Mempool transaction (Mb and Mc)
mempool_tx = CTransaction()
spk = parent_tx.vout[j].scriptPubKey.hex()
value = Decimal(parent_tx.vout[j].nValue) / COIN
txid = parent_tx.rehash()
prevtxs = [{
"txid": txid,
"vout": j,
"scriptPubKey": spk,
"amount": value,
}]
if j == 0: # normal key
(tx_small, _, _, _) = make_chain(node, self.address,
self.privkeys, txid, value, j,
spk, high_fee)
mempool_tx = bulk_transaction(tx_small, node, target_weight,
self.privkeys, prevtxs)
else: # OP_TRUE
inputs = [{"txid": txid, "vout": 1}]
outputs = {self.address: value - high_fee}
small_tx = tx_from_hex(
node.createrawtransaction(inputs, outputs))
mempool_tx = bulk_transaction(small_tx, node, target_weight,
None, prevtxs)
node.sendrawtransaction(mempool_tx.serialize().hex())
# Package transaction (Pd and Pe)
spk = mempool_tx.vout[0].scriptPubKey.hex()
value = Decimal(mempool_tx.vout[0].nValue) / COIN
txid = mempool_tx.rehash()
(tx_small, _, _, _) = make_chain(node, self.address, self.privkeys,
txid, value, 0, spk, high_fee)
prevtxs = [{
"txid": txid,
"vout": 0,
"scriptPubKey": spk,
"amount": value,
}]
package_tx = bulk_transaction(tx_small, node, target_weight,
self.privkeys, prevtxs)
package_hex.append(package_tx.serialize().hex())
assert_equal(3, node.getmempoolinfo()["size"])
assert_equal(2, len(package_hex))
testres_too_heavy = node.testmempoolaccept(rawtxs=package_hex)
for txres in testres_too_heavy:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
self.generate(node, 1)
assert all([
res["allowed"]
for res in node.testmempoolaccept(rawtxs=package_hex)
])
def test_desc_count_limits_2(self):
"""Create a Package with 24 transaction in mempool and 2 transaction in package:
M1
^ ^
M2 ^
. ^
. ^
. ^
M24 ^
^
P1
^
P2
P1 has M1 as a mempool ancestor, P2 has no in-mempool ancestors, but when
combined P2 has M1 as an ancestor and M1 exceeds descendant_limits(23 in-mempool
descendants + 2 in-package descendants, a total of 26 including itself).
"""
node = self.nodes[0]
package_hex = []
# M1
first_coin_a = self.coins.pop()
parent_value = (first_coin_a["amount"] - DEFAULT_FEE
) / 2 # Deduct reasonable fee and make 2 outputs
inputs = [{"txid": first_coin_a["txid"], "vout": 0}]
outputs = [{
self.address: parent_value
}, {
ADDRESS_BCRT1_P2WSH_OP_TRUE: parent_value
}]
rawtx = node.createrawtransaction(inputs, outputs)
parent_signed = node.signrawtransactionwithkey(hexstring=rawtx,
privkeys=self.privkeys)
assert parent_signed["complete"]
parent_tx = tx_from_hex(parent_signed["hex"])
parent_txid = parent_tx.rehash()
node.sendrawtransaction(parent_signed["hex"])
# Chain M2...M24
spk = parent_tx.vout[0].scriptPubKey.hex()
value = parent_value
txid = parent_txid
for i in range(23): # M2...M24
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys, txid, value, 0,
spk)
txid = tx.rehash()
node.sendrawtransaction(txhex)
# P1
value_p1 = (parent_value - DEFAULT_FEE)
rawtx_p1 = node.createrawtransaction([{
"txid": parent_txid,
"vout": 1
}], [{
self.address: value_p1
}])
tx_child_p1 = tx_from_hex(rawtx_p1)
tx_child_p1.wit.vtxinwit = [CTxInWitness()]
tx_child_p1.wit.vtxinwit[0].scriptWitness.stack = [CScript([OP_TRUE])]
tx_child_p1_hex = tx_child_p1.serialize().hex()
txid_child_p1 = tx_child_p1.rehash()
package_hex.append(tx_child_p1_hex)
tx_child_p1_spk = tx_child_p1.vout[0].scriptPubKey.hex()
# P2
(_, tx_child_p2_hex, _, _) = make_chain(node, self.address,
self.privkeys, txid_child_p1,
value_p1, 0, tx_child_p1_spk)
package_hex.append(tx_child_p2_hex)
assert_equal(24, node.getmempoolinfo()["size"])
assert_equal(2, len(package_hex))
testres = node.testmempoolaccept(rawtxs=package_hex)
assert_equal(len(testres), len(package_hex))
for txres in testres:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
self.generate(node, 1)
assert all([
res["allowed"]
for res in node.testmempoolaccept(rawtxs=package_hex)
])
def test_desc_count_limits(self):
"""Create an 'A' shaped package with 24 transactions in the mempool and 2 in the package:
M1
^ ^
M2a M2b
. .
. .
. .
M12a ^
^ M13b
^ ^
Pa Pb
The top ancestor in the package exceeds descendant limits but only if the in-mempool and in-package
descendants are all considered together (24 including in-mempool descendants and 26 including both
package transactions).
"""
node = self.nodes[0]
assert_equal(0, node.getmempoolinfo()["size"])
self.log.info(
"Check that in-mempool and in-package descendants are calculated properly in packages"
)
# Top parent in mempool, M1
first_coin = self.coins.pop()
parent_value = (first_coin["amount"] - Decimal("0.0002")
) / 2 # Deduct reasonable fee and make 2 outputs
inputs = [{"txid": first_coin["txid"], "vout": 0}]
outputs = [{
self.address: parent_value
}, {
ADDRESS_BCRT1_P2WSH_OP_TRUE: parent_value
}]
rawtx = node.createrawtransaction(inputs, outputs)
parent_signed = node.signrawtransactionwithkey(hexstring=rawtx,
privkeys=self.privkeys)
assert parent_signed["complete"]
parent_tx = tx_from_hex(parent_signed["hex"])
parent_txid = parent_tx.rehash()
node.sendrawtransaction(parent_signed["hex"])
package_hex = []
# Chain A
spk = parent_tx.vout[0].scriptPubKey.hex()
value = parent_value
txid = parent_txid
for i in range(12):
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys, txid, value, 0,
spk)
txid = tx.rehash()
if i < 11: # M2a... M12a
node.sendrawtransaction(txhex)
else: # Pa
package_hex.append(txhex)
# Chain B
value = parent_value - Decimal("0.0001")
rawtx_b = node.createrawtransaction([{
"txid": parent_txid,
"vout": 1
}], {self.address: value})
tx_child_b = tx_from_hex(rawtx_b) # M2b
tx_child_b.wit.vtxinwit = [CTxInWitness()]
tx_child_b.wit.vtxinwit[0].scriptWitness.stack = [CScript([OP_TRUE])]
tx_child_b_hex = tx_child_b.serialize().hex()
node.sendrawtransaction(tx_child_b_hex)
spk = tx_child_b.vout[0].scriptPubKey.hex()
txid = tx_child_b.rehash()
for i in range(12):
(tx, txhex, value, spk) = make_chain(node, self.address,
self.privkeys, txid, value, 0,
spk)
txid = tx.rehash()
if i < 11: # M3b... M13b
node.sendrawtransaction(txhex)
else: # Pb
package_hex.append(txhex)
assert_equal(24, node.getmempoolinfo()["size"])
assert_equal(2, len(package_hex))
testres_too_long = node.testmempoolaccept(rawtxs=package_hex)
for txres in testres_too_long:
assert_equal(txres["package-error"], "package-mempool-limits")
# Clear mempool and check that the package passes now
self.generate(node, 1)
assert all([
res["allowed"]
for res in node.testmempoolaccept(rawtxs=package_hex)
])