Merge #13823: qa: quote path in authproxy for external multiwallets

fa67505e1e qa: Quote wallet name for rpc path (MarcoFalke)

Pull request description:

  When using external multiwallets they are specified by their full path which might contain non-ascii characters (e.g. umlauts or emojis).

  Fix this by url-quoting the path.

Tree-SHA512: 7cc66514579d9f602f88a6817c5ab43a44c6d3711df452dc904173f0bc34e2c0b2c34877497f06b61f6720c532fa183053f54622dc454e316c89cee7eaa72463

test/functional/test_framework/test_node.py

@@ -15,6 +15,7 @@ import re
 import subprocess
 import tempfile
 import time
+import urllib.parse
 
 from .authproxy import JSONRPCException
 from .util import (
@@ -180,7 +181,7 @@ class TestNode():
             return self.cli("-rpcwallet={}".format(wallet_name))
         else:
             assert self.rpc_connected and self.rpc, self._node_msg("RPC not connected")
-            wallet_path = "wallet/%s" % wallet_name
+            wallet_path = "wallet/{}".format(urllib.parse.quote(wallet_name))
             return self.rpc / wallet_path
 
     def stop_node(self, expected_stderr=''):