More tests of signer checks

test/functional/rpc_psbt.py

@@ -168,9 +168,11 @@ class PSBTTest(BitcoinTestFramework):
 
         # Signer tests
         for i, signer in enumerate(signers):
+            self.nodes[2].createwallet("wallet{}".format(i))
+            wrpc = self.nodes[2].get_wallet_rpc("wallet{}".format(i))
             for key in signer['privkeys']:
-                self.nodes[i].importprivkey(key)
-            signed_tx = self.nodes[i].walletprocesspsbt(signer['psbt'])['psbt']
+                wrpc.importprivkey(key)
+            signed_tx = wrpc.walletprocesspsbt(signer['psbt'])['psbt']
             assert_equal(signed_tx, signer['result'])
 
         # Combiner test