Merge bitcoin/bitcoin#22156: Allow tr() import only when Taproot is active

fbf485c9b2bf1d056bfea77345a15cf56a9cd786 Allow tr() import only when Taproot is active (Andrew Chow)

Pull request description:

  To avoid issues around fund loss, only allow descriptor wallets to import `tr()` descriptors after taproot has activated.

ACKs for top commit:
  sipa:
    utACK fbf485c9b2bf1d056bfea77345a15cf56a9cd786
  fjahr:
    Code review ACK fbf485c9b2bf1d056bfea77345a15cf56a9cd786
  laanwj:
    Code review ACK fbf485c9b2bf1d056bfea77345a15cf56a9cd786
  prayank23:
    utACK https://github.com/bitcoin/bitcoin/pull/22156/commits/fbf485c9b2bf1d056bfea77345a15cf56a9cd786

Tree-SHA512: 83c43376515eea523dbc89bc5a0fde53e54aec492e49a40c2a33d80fc94aac459e232ae07b024b4bd75b58078c8d090bc7a2d69541c5d3d4834d2f4cfc9c8208

1 files changed, 24 insertions, 2 deletions

diff --git a/test/functional/wallet_taproot.py b/test/functional/wallet_taproot.py
index 65ca7bdef7..5803c0cf54 100755
--- a/test/functional/wallet_taproot.py
+++ b/test/functional/wallet_taproot.py
@@ -172,9 +172,9 @@ class WalletTaprootTest(BitcoinTestFramework):
     """Test generation and spending of P2TR address outputs."""
 
     def set_test_params(self):
-        self.num_nodes = 2
+        self.num_nodes = 3
         self.setup_clean_chain = True
-        self.extra_args = [['-keypool=100'], ['-keypool=100']]
+        self.extra_args = [['-keypool=100'], ['-keypool=100'], ["-vbparams=taproot:1:1"]]
         self.supports_cli = False
 
     def skip_test_if_missing_module(self):
@@ -230,12 +230,34 @@ class WalletTaprootTest(BitcoinTestFramework):
                 addr_r = self.make_addr(treefn, keys, i)
                 assert_equal(addr_g, addr_r)
 
+        # tr descriptors cannot be imported when Taproot is not active
+        result = self.privs_tr_enabled.importdescriptors([{"desc": desc, "timestamp": "now"}])
+        assert(result[0]["success"])
+        result = self.privs_tr_disabled.importdescriptors([{"desc": desc, "timestamp": "now"}])
+        assert(not result[0]["success"])
+        assert_equal(result[0]["error"]["code"], -4)
+        assert_equal(result[0]["error"]["message"], "Cannot import tr() descriptor when Taproot is not active")
+        result = self.pubs_tr_enabled.importdescriptors([{"desc": desc_pub, "timestamp": "now"}])
+        assert(result[0]["success"])
+        result = self.pubs_tr_disabled.importdescriptors([{"desc": desc_pub, "timestamp": "now"}])
+        assert(not result[0]["success"])
+        assert_equal(result[0]["error"]["code"], -4)
+        assert_equal(result[0]["error"]["message"], "Cannot import tr() descriptor when Taproot is not active")
+
     def do_test(self, comment, pattern, privmap, treefn, nkeys):
         keys = self.rand_keys(nkeys)
         self.do_test_addr(comment, pattern, privmap, treefn, keys)
 
     def run_test(self):
         self.log.info("Creating wallets...")
+        self.nodes[0].createwallet(wallet_name="privs_tr_enabled", descriptors=True, blank=True)
+        self.privs_tr_enabled = self.nodes[0].get_wallet_rpc("privs_tr_enabled")
+        self.nodes[2].createwallet(wallet_name="privs_tr_disabled", descriptors=True, blank=True)
+        self.privs_tr_disabled=self.nodes[2].get_wallet_rpc("privs_tr_disabled")
+        self.nodes[0].createwallet(wallet_name="pubs_tr_enabled", descriptors=True, blank=True, disable_private_keys=True)
+        self.pubs_tr_enabled = self.nodes[0].get_wallet_rpc("pubs_tr_enabled")
+        self.nodes[2].createwallet(wallet_name="pubs_tr_disabled", descriptors=True, blank=True, disable_private_keys=True)
+        self.pubs_tr_disabled=self.nodes[2].get_wallet_rpc("pubs_tr_disabled")
         self.nodes[0].createwallet(wallet_name="addr_gen", descriptors=True, disable_private_keys=True, blank=True)
         self.addr_gen = self.nodes[0].get_wallet_rpc("addr_gen")