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-rwxr-xr-xtest/functional/mempool_spend_coinbase.py28
-rw-r--r--test/functional/test_framework/wallet.py17
2 files changed, 30 insertions, 15 deletions
diff --git a/test/functional/mempool_spend_coinbase.py b/test/functional/mempool_spend_coinbase.py
index 854d506f0d..86d382ff69 100755
--- a/test/functional/mempool_spend_coinbase.py
+++ b/test/functional/mempool_spend_coinbase.py
@@ -13,44 +13,48 @@ but less mature coinbase spends are NOT.
"""
from test_framework.test_framework import BitcoinTestFramework
-from test_framework.blocktools import create_raw_transaction
from test_framework.util import assert_equal, assert_raises_rpc_error
+from test_framework.wallet import MiniWallet
class MempoolSpendCoinbaseTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
-
- def skip_test_if_missing_module(self):
- self.skip_if_no_wallet()
+ self.setup_clean_chain = True
def run_test(self):
+ wallet = MiniWallet(self.nodes[0])
+
+ wallet.generate(200)
chain_height = self.nodes[0].getblockcount()
assert_equal(chain_height, 200)
- node0_address = self.nodes[0].getnewaddress()
# Coinbase at height chain_height-100+1 ok in mempool, should
# get mined. Coinbase at height chain_height-100+2 is
- # is too immature to spend.
+ # too immature to spend.
b = [self.nodes[0].getblockhash(n) for n in range(101, 103)]
coinbase_txids = [self.nodes[0].getblock(h)['tx'][0] for h in b]
- spends_raw = [create_raw_transaction(self.nodes[0], txid, node0_address, amount=49.99) for txid in coinbase_txids]
+ utxo_101 = wallet.get_utxo(txid=coinbase_txids[0])
+ utxo_102 = wallet.get_utxo(txid=coinbase_txids[1])
- spend_101_id = self.nodes[0].sendrawtransaction(spends_raw[0])
+ spend_101_id = wallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_101)["txid"]
# coinbase at height 102 should be too immature to spend
- assert_raises_rpc_error(-26,"bad-txns-premature-spend-of-coinbase", self.nodes[0].sendrawtransaction, spends_raw[1])
+ assert_raises_rpc_error(-26,
+ "bad-txns-premature-spend-of-coinbase",
+ lambda: wallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_102))
# mempool should have just spend_101:
- assert_equal(self.nodes[0].getrawmempool(), [ spend_101_id ])
+ assert_equal(self.nodes[0].getrawmempool(), [spend_101_id])
# mine a block, spend_101 should get confirmed
self.nodes[0].generate(1)
assert_equal(set(self.nodes[0].getrawmempool()), set())
# ... and now height 102 can be spent:
- spend_102_id = self.nodes[0].sendrawtransaction(spends_raw[1])
- assert_equal(self.nodes[0].getrawmempool(), [ spend_102_id ])
+ spend_102_id = wallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=utxo_102)["txid"]
+ assert_equal(self.nodes[0].getrawmempool(), [spend_102_id])
+
if __name__ == '__main__':
MempoolSpendCoinbaseTest().main()
diff --git a/test/functional/test_framework/wallet.py b/test/functional/test_framework/wallet.py
index 39b3bf2a5b..a71f2c69cb 100644
--- a/test/functional/test_framework/wallet.py
+++ b/test/functional/test_framework/wallet.py
@@ -40,9 +40,20 @@ class MiniWallet:
self._utxos.append({'txid': cb_tx['txid'], 'vout': 0, 'value': cb_tx['vout'][0]['value']})
return blocks
- def get_utxo(self):
- """Return the last utxo. Can be used to get the change output immediately after a send_self_transfer"""
- return self._utxos.pop()
+ def get_utxo(self, *, txid=''):
+ """
+ Returns a utxo and marks it as spent (pops it from the internal list)
+
+ Args:
+ txid (string), optional: get the first utxo we find from a specific transaction
+
+ Note: Can be used to get the change output immediately after a send_self_transfer
+ """
+ index = -1 # by default the last utxo
+ if txid:
+ utxo = next(filter(lambda utxo: txid == utxo['txid'], self._utxos))
+ index = self._utxos.index(utxo)
+ return self._utxos.pop(index)
def send_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_spend=None):
"""Create and send a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""