test: call keypoolrefill with private keys disabled should throw an error

Author: brunoerg

test/functional/wallet_keypool.py

@@ -204,6 +204,9 @@ def run_test(self):
         res = w2.walletcreatefundedpsbt(inputs=[], outputs=[{destination: 0.00010000}], options={"subtractFeeFromOutputs": [0], "feeRate": 0.00010, "changeAddress": addr.pop()})
         assert_equal("psbt" in res, True)
 
+        if not self.options.descriptors:
+            msg = "Error: Private keys are disabled for this wallet"
+            assert_raises_rpc_error(-4, msg, w2.keypoolrefill, 100)
 
 if __name__ == '__main__':
     KeyPoolTest().main()