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-rwxr-xr-xtest/functional/rpc_psbt.py10
-rw-r--r--test/functional/test_framework/psbt.py8
2 files changed, 14 insertions, 4 deletions
diff --git a/test/functional/rpc_psbt.py b/test/functional/rpc_psbt.py
index a6566f152f..23a581469e 100755
--- a/test/functional/rpc_psbt.py
+++ b/test/functional/rpc_psbt.py
@@ -820,6 +820,16 @@ class PSBTTest(BitcoinTestFramework):
assert hash.hex() in res_input[preimage_key]
assert_equal(res_input[preimage_key][hash.hex()], preimage.hex())
+ self.log.info("Test that combining PSBTs with different transactions fails")
+ tx = CTransaction()
+ tx.vin = [CTxIn(outpoint=COutPoint(hash=int('aa' * 32, 16), n=0), scriptSig=b"")]
+ tx.vout = [CTxOut(nValue=0, scriptPubKey=b"")]
+ psbt1 = PSBT(g=PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}), i=[PSBTMap()], o=[PSBTMap()]).to_base64()
+ tx.vout[0].nValue += 1 # slightly modify tx
+ psbt2 = PSBT(g=PSBTMap({PSBT_GLOBAL_UNSIGNED_TX: tx.serialize()}), i=[PSBTMap()], o=[PSBTMap()]).to_base64()
+ assert_raises_rpc_error(-8, "PSBTs not compatible (different transactions)", self.nodes[0].combinepsbt, [psbt1, psbt2])
+ assert_equal(self.nodes[0].combinepsbt([psbt1, psbt1]), psbt1)
+
if __name__ == '__main__':
PSBTTest().main()
diff --git a/test/functional/test_framework/psbt.py b/test/functional/test_framework/psbt.py
index ad3fe29b62..68945e7e84 100644
--- a/test/functional/test_framework/psbt.py
+++ b/test/functional/test_framework/psbt.py
@@ -96,10 +96,10 @@ class PSBTMap:
class PSBT:
"""Class for serializing and deserializing PSBTs"""
- def __init__(self):
- self.g = PSBTMap()
- self.i = []
- self.o = []
+ def __init__(self, *, g=None, i=None, o=None):
+ self.g = g if g is not None else PSBTMap()
+ self.i = i if i is not None else []
+ self.o = o if o is not None else []
self.tx = None
def deserialize(self, f):