Wallet/RPC: Allow specifying min & max chain depth for inputs used by fund calls

Enables users to craft BIP-125 replacements with changes to the output
list, ensuring that if additional funds are needed they will be added.

1 files changed, 13 insertions, 1 deletions

diff --git a/test/functional/wallet_send.py b/test/functional/wallet_send.py
index 424834323f..ac3ec06eec 100755
--- a/test/functional/wallet_send.py
+++ b/test/functional/wallet_send.py
@@ -45,7 +45,7 @@ class WalletSendTest(BitcoinTestFramework):
                   conf_target=None, estimate_mode=None, fee_rate=None, add_to_wallet=None, psbt=None,
                   inputs=None, add_inputs=None, include_unsafe=None, change_address=None, change_position=None, change_type=None,
                   include_watching=None, locktime=None, lock_unspents=None, replaceable=None, subtract_fee_from_outputs=None,
-                  expect_error=None, solving_data=None):
+                  expect_error=None, solving_data=None, minconf=None):
         assert (amount is None) != (data is None)
 
         from_balance_before = from_wallet.getbalances()["mine"]["trusted"]
@@ -106,6 +106,8 @@ class WalletSendTest(BitcoinTestFramework):
             options["subtract_fee_from_outputs"] = subtract_fee_from_outputs
         if solving_data is not None:
             options["solving_data"] = solving_data
+        if minconf is not None:
+            options["minconf"] = minconf
 
         if len(options.keys()) == 0:
             options = None
@@ -487,6 +489,16 @@ class WalletSendTest(BitcoinTestFramework):
         res = self.test_send(from_wallet=w5, to_wallet=w0, amount=1, include_unsafe=True)
         assert res["complete"]
 
+        self.log.info("Minconf")
+        self.nodes[1].createwallet(wallet_name="minconfw")
+        minconfw= self.nodes[1].get_wallet_rpc("minconfw")
+        self.test_send(from_wallet=w0, to_wallet=minconfw, amount=2)
+        self.generate(self.nodes[0], 3)
+        self.test_send(from_wallet=minconfw, to_wallet=w0, amount=1, minconf=4, expect_error=(-4, "Insufficient funds"))
+        self.test_send(from_wallet=minconfw, to_wallet=w0, amount=1, minconf=-4, expect_error=(-8, "Negative minconf"))
+        res = self.test_send(from_wallet=minconfw, to_wallet=w0, amount=1, minconf=3)
+        assert res["complete"]
+
         self.log.info("External outputs")
         eckey = ECKey()
         eckey.generate()