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test: Return the largest utxo in MiniWallet.get_utxo

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MarcoFalke 2021-11-15 13:19:58 +01:00
parent 41a1b5f58c
commit fa62207737
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2 changed files with 3 additions and 5 deletions
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2
test/functional/rpc_txoutproof.py
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@ -53,7 +53,7 @@ class MerkleBlockTest(BitcoinTestFramework):
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2])), txlist)
assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2], blockhash)), txlist)
txin_spent = miniwallet.get_utxo() # Get the change from txid2
txin_spent = miniwallet.get_utxo(txid=txid2) # Get the change from txid2
tx3 = miniwallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=txin_spent)
txid3 = tx3['txid']
self.generate(self.nodes[0], 1)

6
test/functional/test_framework/wallet.py
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@ -133,10 +133,9 @@ class MiniWallet:
Args:
txid: 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
self._utxos = sorted(self._utxos, key=lambda k: (k['value'], -k['height'])) # Put the largest utxo last
if txid:
utxo = next(filter(lambda utxo: txid == utxo['txid'], self._utxos))
index = self._utxos.index(utxo)
@ -172,8 +171,7 @@ class MiniWallet:
def create_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_spend=None, mempool_valid=True, locktime=0, sequence=0):
"""Create and return a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""
self._utxos = sorted(self._utxos, key=lambda k: (k['value'], -k['height']))
utxo_to_spend = utxo_to_spend or self._utxos.pop() # Pick the largest utxo (if none provided) and hope it covers the fee
utxo_to_spend = utxo_to_spend or self.get_utxo()
if self._priv_key is None:
vsize = Decimal(104) # anyone-can-spend
else: